About the role

As a Staff Software Engineer (SDK), you will own platform live ops features and apply your creativity throughout the entire development lifecycle - from initial design to live game support. You will collaborate closely with product, design, and engineering teams to deliver high-quality game client features and reusable components, helping to accelerate development across Fortis Games. In this role, you will also provide technical leadership, architectural guidance, and mentorship to other engineers.

What you’ll achieve

• Engage in full-lifecycle development: scoping, design, implementation, documentation, and deployment of our game application.
• Lead technical design and design principles for client features and shared components
• Collaborate with back-end engineers on server-dependent game features.
• Work with product managers to shape product scope, evaluate technical tradeoffs, and define scalable solutions
• Adhere to and elevate studio development guidelines, code style, testing strategy, and architecture standards
• Perform in-depth client code analysis to identify and resolve complex bugs and performance issues.
• Create and review technical design documents to guide stakeholders and engineers
• Mentor and support other engineers, including guidance on TDD practices and effective use of AI coding agents in daily workflows

What you’ll need to be successful

• Experience developing mobile games or client applications using Unity3D
• Familiarity with building SDKs and reusable client frameworks
• Proven software engineering expertise within the gaming industry
• Experience leading architecture and technical design decisions
• Strong knowledge of software design principles and test-driven development (TDD) practices
• Experience collaborating with product managers on feature scope and technical planning
• Practical experience using AI coding agents / AI-assisted development tools with appropriate validation and quality control
• Team player, able to collaborate effectively with engineers, designers, and developers, with strong communication skills

About Us

Nu is one of the largest digital financial platforms in the world, with more than 122 million customers across Brazil, Mexico, and Colombia. Guided by our mission to fight complexity and empower people, we are redefining financial services in Latin America and this is still just the beginning of the purple future we're building.

Listed on the New York Stock Exchange (NYSE: NU), we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human.

Our impact has been recognized by global rankings such as Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. Visit our institutional page https://international.nubank.com.br/careers/  

About Nubank’s Mobile Platform - Global Experience Design

The Mobile Platform’s mission aligns with Nubank’s commitment to delivering the best experience for our customers by ensuring a high-performing, stable, and seamless app.

Within Mobile Platform, focuses on providing user-friendly, scalable, high-performing, and cost-efficient app infrastructure components and mobile tools that enable Nubank engineers to quickly and safely test, deploy, monitor, analyze, and improve app flows and features.

Global Experience Design is one of Nubank’s building blocks, bringing together UX, design, and customer experience. The team works on evolving the app experience and the design system, connecting Mobile Platform, App Excellence, Design Systems, and App Core to create simple, consistent, and scalable experiences. We are at the heart of the Nubank app’s foundation, driving performance, infrastructure scalability, and the removal of legacy dependencies to allow our application to grow from millions to potentially billions of passionate customers.

The Opportunity

This role will involve working across a variety of technologies, including Native, Flutter, and related frameworks. We are looking for a Staff Mobile Engineer with solid experience to join the Mobile Platform team — a cross-impact engineering team responsible for building and maintaining the core infrastructure of the mobile application, optimizing our performance, and enabling product teams to deliver high-quality mobile experiences.

What We’re Looking For

Must Have:

• Proven and solid experience in technical development of mobile applications at a strategic leadership level.
• Strong technical background with Flutter and/or native mobile development (Android/iOS).
• Solid understanding of mobile software engineering principles, architectural patterns, and modularization strategies.
• Experience with server driven UI, performance optimization, dependency injection, and migration of core systems.
• Knowledge of mobile observability, monitoring, and debugging tools.
• Strong communication skills in English, with the ability to explain complex concepts to diverse audiences.
• Track record of delivering results in ambiguous, fast-paced environments.

Nice to Have:

• Experience with backend technologies, especially those integrated with mobile applications.
• Familiarity with distributed systems and large-scale app architecture.
• Contributions to internal SDKs, libraries, or mobile design systems.
• Understanding of user authentication, session management, and app state handling.
•  
  Leadership in global teams.

Why Join Us

• Impact at Scale: Help shape the mobile experience for millions of customers across multiple countries, with the goal of reaching billions.
• Technical Leadership: Influence the architecture and foundational technologies that all Nubank engineers rely on.
• Innovation-Driven Culture: Work in a dynamic, collaborative environment that values experimentation, continuous improvement, and engineering excellence.
• Career Growth: Develop as a strategic engineering, working on complex technical and organizational challenges.

Our Benefits

• Chance of earning equity at Nubank
• Food/ Meal Card (Vale-Refeição and/or Vale Alimentação)
• Public Transportation Commuting Benefit (Vale-Transporte)
• NuCare – Psychological, Financial and Legal Assistance Program
• Life Insurance
• Medical Plan
• Dental Plan
• NuLanguage – Language Course Program
• Nucleo - Our learning platform of courses
• Extended Parental Leave
• Daycare Allowance
• Parental Consultancy
• Work-from-home Allowance
• Gym Partnerships
• 30 days of paid vacation
• Relocation Assistance Package, if applicable

Work Model for this Role

Hybrid 2-3 times/week: Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration. For more details, visit https://building.nubank.com/nu-hybrid-work-model/

As a key member of the Quality Assurance team, you will be responsible for ensuring the reliability, performance, and security of our software products. You will design, develop, and execute comprehensive test plans that allow our development teams to ship high-quality code with confidence and speed.

Key Responsibilities

• Quality Strategy: Develop and implement robust test strategies and test cases for new and existing features.
• Test Automation: Design, write, and maintain automated test scripts (UI and API) to increase testing efficiency and coverage.
• Agile Collaboration: Participate in Agile ceremonies (Sprint Planning, Stand-ups, Retrospectives) to provide "QA perspective" from the start of the development cycle.
• Defect Management: Identify, document, and track software defects to resolution using bug-tracking tools (e.g., Jira).
• Cross-Functional Communication: Communicate effectively with developers, product owners, and stakeholders to clarify requirements and report on software health.
• CI/CD Integration: Integrate automated tests into CI/CD pipelines to ensure continuous quality and rapid feedback loops.
• Root Cause Analysis: Perform thorough regression testing and root cause analysis when bugs are identified in production.
• Continuous Improvement: Proactively suggest improvements to the development process to prevent defects before they occur.
• Soft Skills: Demonstrate a detail-oriented mindset, professional curiosity, and a "quality-first" attitude.

Requirements

• Experience: Proven experience in Software Quality Assurance (Manual and Automated testing).
• Language: English proficiency is mandatory.
• Programming Skills: Proficiency in at least one programming language (e.g., Java, Python, or JavaScript) for automation purposes.
• Testing Frameworks: Hands-on experience with automation tools such as Selenium, Cypress, Playwright, or Appium.
• API Testing: Experience testing RESTful APIs using tools like Postman, SoapUI, or RestAssured.
• Databases: Basic to intermediate knowledge of SQL for data validation and backend testing.
• Version Control: Proficiency in Git and/or BitBucket.
• Documentation: Excellent skills in writing clear, concise, and comprehensive test plans and bug reports.

Preferred Qualifications (Pluses)

• Experience with Performance/Load Testing (e.g., JMeter, Locust).
• Knowledge of Security/Penetration Testing principles.
• Experience with Cloud Infrastructure (AWS, Azure, or GCP).
• Familiarity with Docker and Kubernetes for managing test environments.

LI-DC1

#LI-KG1 #LI-REMOTE

About Us

Nu is one of the largest digital financial platforms in the world, with more than 122 million customers across Brazil, Mexico, and Colombia. Guided by our mission to fight complexity and empower people, we are redefining financial services in Latin America and this is still just the beginning of the purple future we're building.

Listed on the New York Stock Exchange (NYSE: NU), we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human.

Our impact has been recognized by global rankings such as Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. Visit our institutional page https://international.nubank.com.br/careers/  

About Nubank’s Mobile Platform and App Core

The Mobile Platform’s mission aligns with Nubank’s commitment to delivering the best experience for our customers by ensuring a high-performing, stable, and seamless app.
Within Mobile Platform, App Core focuses on providing user-friendly, scalable, high-performing, and cost-efficient app infrastructure components and mobile tools that enable Nubank engineers to quickly and safely test, deploy, monitor, analyze, and improve app flows and features.

App Core is at the heart of the Nubank app’s foundation, powering app performance, infrastructure scalability, and the removal of legacy dependencies to allow our application to grow from millions to potentially billions of fanatic customers.

The Opportunity

This role will involve working across a variety of technologies, including Native, Flutter, and related frameworks. We are looking for a Mobile Engineer with experience to join the App Core team — a cross-impact engineering team responsible for building and maintaining the core infrastructure of the mobile application, optimizing our performance, and enabling product teams to deliver high-quality mobile experiences.

What We’re Looking For

Must Have:

• Proven experience in mid-level technical mobile development.
• Tchnical background with Flutter or native mobile development (Android/iOS).
• Understanding of mobile software engineering principles, architectural patterns, and modularization strategies.
• Experience with performance optimization, dependency injection, and migration of core systems.
• Knowledge of mobile observability, monitoring, and debugging tools.
• Good communication skills in English, with the ability to explain concepts to diverse audiences.

Nice to Have:

• Knowledge backend technologies, especially those integrated with mobile applications.
• Familiarity with distributed systems and large-scale app architecture.
• Contributions to internal SDKs, libraries, or mobile design systems.
• Understanding of user authentication, session management, and app state handling.

Why Join Us

• Impact at Scale: Help shape the mobile experience for millions of customers across multiple countries, with the goal of reaching billions.
• Technical Leadership: Influence the architecture and foundational technologies that all Nubank engineers rely on.
• Innovation-Driven Culture: Work in a dynamic, collaborative environment that values experimentation, continuous improvement, and engineering excellence.
• Career Growth: Develop as a strategic engineering, working on complex technical and organizational challenges.

Our Benefits

• Chance of earning equity at Nubank
• Food/ Meal Card (Vale-Refeição and/or Vale Alimentação)
• Public Transportation Commuting Benefit (Vale-Transporte)
• NuCare – Psychological, Financial and Legal Assistance Program
• Life Insurance
• Medical Plan
• Dental Plan
• NuLanguage – Language Course Program
• Nucleo - Our learning platform of courses
• Extended Parental Leave
• Daycare Allowance
• Parental Consultancy
• Work-from-home Allowance
• Gym Partnerships
• 30 days of paid vacation
• Relocation Assistance Package, if applicable

Work Model for this Role

Hybrid 2-3 times/week: Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration. For more details, visit https://building.nubank.com/nu-hybrid-work-model/

About you

We are looking for someone who is a whizz with Python, has experience with microservices, and is happy to get stuck into a gritty, fast-paced environment to work within our awesome Python team, championing and leading the build of secure, robust, and high-performance systems. 

The Opportunity

Our Python team builds highly available, low-latency microservices from scratch using the latest bleeding-edge technologies.

You will own and develop multiple services across our revenue domain billing, tax calculation, customer commitment management, and AI-powered revenue operations agents. You'll have the opportunity to make a huge impact on our growing company by solving complex problems as we scale. You'll be part of a group of people working together to build solutions to mission-critical problems and a company that values the very best ideas. People rely on our products to communicate daily, which means they rely on us to build things with a high degree of resiliency and reliability.

• Design developer/agent-friendly APIs.
• Build, test, and deploy applications to deliver critical global communications services.
• Identify and resolve issues related to latency, scalability, and performance.
• Create tools and AI agents to automate revenue operations.
• Investigate and resolve production issues by tracing through logs, data, and code to find root causes.
  
  

Who we're looking for

• 5+ years of professional software development experience with an object-oriented programming language
• Experience with web application development using Python (FastAPI, aiohttp, or similar).
• Experience designing and building RESTful APIs.
• Experience working with asynchronous programming
• Comfort working with PostgreSQL and relational databases at scale, including schema migrations, raw SQL queries and query optimization.
• Experience with event-driven architectures and message brokers (RabbitMQ, Kafka or similar).
• Experience in a highly available, uptime-critical production environment.
• Deep knowledge of microservice architecture patterns and anti-patterns
• Familiarity with Docker, Kubernetes, Consul, GitHub Actions, Argo CD, Prometheus, or OpenTelemetry.
• Strong troubleshooting skills — you can dig through logs, query databases, trace distributed systems, and read unfamiliar code to get to the bottom of an issue.
• Comfortable owning services in production, including on-call responsibilities and incident resolution.
• Comfortable using AI coding agents as part of your investigation workflow, while knowing when to rely on your own judgement.

Bonus Points For

• Experience with billing, tax, or financial systems.
• Telecom domain knowledge
• Experience with SQLAlchemy and Alembic.
• You take a thoughtful approach to decision making, knowing when to move fast and when to long-term optimize.
• You want to work in a fast-paced, product-driven environment.
• You keep up to date with the latest technologies and patterns, and enjoy sharing what you've learned.
• Familiarity with agent communication protocols (MCP, A2A).
• Experience building AI agents or LLM-powered applications.

#LI-KG1

#LI-BRAZIL

The Opportunity

Our AI teams build highly available, low-latency microservices using modern, cloud-native technologies. This role sits within our broader AI organization and focuses on developing the platforms, services, and tooling that support AI-powered products — from inference and embeddings to APIs, data flows, and observability.

You’ll work in a fast-paced environment where reliability, performance, and usability matter just as much as innovation. While some squads work closer to inference pipelines and LLM tooling, others focus on platform foundations, troubleshooting and reliability, data systems, or observability — all critical to delivering AI in production at scale.

What You’ll Do

• Build, test, and deploy scalable microservices for AI-powered systems, including text and voice processing
  
  
• Design developer-friendly APIs, agents and internal tools that make AI easy to use across the Telnyx product ecosystem
  
  
• Contribute to AI inference, embeddings, and platform services that support real-time and low-latency workloads
  
  
• Optimize performance, reliability, and observability in production environments
  
  
• Collaborate closely with Product, Infrastructure, and ML teams to bring features from ideation to production
  
  
• Troubleshoot, debug, and support critical systems running in production
  
  
• Participate in code reviews and uphold high engineering and operational standards
  
  

Depending on the squad, your focus may lean more toward inference pipelines, platform foundations, observability, data systems, or production troubleshooting.

Who We’re Looking For

• Someone who has built something with cutting-edge AI tooling (something that has only become possible in the last 6 months, rolling from application date). It doesn't really matter what it is; we just want to know you are building and staying up to date.
  
  
• Strong understanding of async programming, concurrency, and parallel execution
  
  
• Experience with microservice-based systems
  
  
• Excellent communication skills and the ability to work effectively across teams
  
  

Nice to Haves

• Familiarity with LLM frameworks and tools (e.g. PyTorch, Transformers, DeepSpeed, vLLM)
  
  
• Experience with distributed computing frameworks such as Ray (Ray Core, Serve, Train)
  
  
• Exposure to cloud-native stacks (Docker, Kubernetes, Prometheus, Jaeger)
  
  
• Knowledge of LLM optimization techniques (e.g. quantization, speculative decoding)
  
  
• Background in Retrieval Augmented Generation (RAG) systems

How We Hire Across Our AI Teams

Our AI Chapter is made up of multiple squads, including:

• AI application & software engineering
  
  
• Platform & infrastructure foundations
  
  
• Troubleshooting, reliability, and production support
  
  
• Data, storage, and embeddings
  
  
• Observability and performance monitoring
  
  

We hire into a shared AI engineering pipeline. During interviews, we focus on core engineering skills, system design, and problem-solving ability. Final squad alignment happens later, based on:

• Your strengths and interests
  
  
• Team needs at the time
  
  
• Where you’ll have the biggest long-term impact
  
  

This means the exact focus of the role may vary by squad, but the core expectation remains the same: building reliable, scalable AI systems in production.

Why You’ll Love It Here

At Telnyx, we’re not just building products — we’re building the future of intelligent communication. Our TelnyxAI platform empowers developers and businesses to:

• Store and serve vector embeddings at scale
  
  
• Use open-source models with our hosted inference infrastructure
  
  
• Deploy multimodal AI features across text, voice, and storage seamlessly
  
  

You’ll have the autonomy to take ownership of meaningful projects, contribute ideas that shape the product roadmap, and collaborate with talented people who care deeply about impact, quality, and long-term thinking.

#LI-KG1
#LI-VIETNAM
#LI-BRAZIL
#LI-INDIA

The Opportunity

Our AI teams build highly available, low-latency microservices using modern, cloud-native technologies. This role sits within our broader AI organization and focuses on developing the platforms, services, and tooling that support AI-powered products — from inference and embeddings to APIs, data flows, and observability.

You’ll work in a fast-paced environment where reliability, performance, and usability matter just as much as innovation. While some squads work closer to inference pipelines and LLM tooling, others focus on platform foundations, troubleshooting and reliability, data systems, or observability — all critical to delivering AI in production at scale.

What You’ll Do

• Build, test, and deploy scalable microservices for AI-powered systems, including text and voice processing
  
  
• Design developer-friendly APIs, agents and internal tools that make AI easy to use across the Telnyx product ecosystem
  
  
• Contribute to AI inference, embeddings, and platform services that support real-time and low-latency workloads
  
  
• Optimize performance, reliability, and observability in production environments
  
  
• Collaborate closely with Product, Infrastructure, and ML teams to bring features from ideation to production
  
  
• Troubleshoot, debug, and support critical systems running in production
  
  
• Participate in code reviews and uphold high engineering and operational standards
  
  

Depending on the squad, your focus may lean more toward inference pipelines, platform foundations, observability, data systems, or production troubleshooting.

Who We’re Looking For

• Someone who has built something with cutting-edge AI tooling (something that has only become possible in the last 6 months, rolling from application date). It doesn't really matter what it is; we just want to know you are building and staying up to date.
  
  
• Strong understanding of async programming, concurrency, and parallel execution
  
  
• Experience with microservice-based systems
  
  
• Excellent communication skills and the ability to work effectively across teams
  
  

Nice to Haves

• Familiarity with LLM frameworks and tools (e.g. PyTorch, Transformers, DeepSpeed, vLLM)
  
  
• Experience with distributed computing frameworks such as Ray (Ray Core, Serve, Train)
  
  
• Exposure to cloud-native stacks (Docker, Kubernetes, Prometheus, Jaeger)
  
  
• Knowledge of LLM optimization techniques (e.g. quantization, speculative decoding)
  
  
• Background in Retrieval Augmented Generation (RAG) systems

How We Hire Across Our AI Teams

Our AI Chapter is made up of multiple squads, including:

• AI application & software engineering
  
  
• Platform & infrastructure foundations
  
  
• Troubleshooting, reliability, and production support
  
  
• Data, storage, and embeddings
  
  
• Observability and performance monitoring
  
  

We hire into a shared AI engineering pipeline. During interviews, we focus on core engineering skills, system design, and problem-solving ability. Final squad alignment happens later, based on:

• Your strengths and interests
  
  
• Team needs at the time
  
  
• Where you’ll have the biggest long-term impact
  
  

This means the exact focus of the role may vary by squad, but the core expectation remains the same: building reliable, scalable AI systems in production.

Why You’ll Love It Here

At Telnyx, we’re not just building products — we’re building the future of intelligent communication. Our TelnyxAI platform empowers developers and businesses to:

• Store and serve vector embeddings at scale
  
  
• Use open-source models with our hosted inference infrastructure
  
  
• Deploy multimodal AI features across text, voice, and storage seamlessly
  
  

You’ll have the autonomy to take ownership of meaningful projects, contribute ideas that shape the product roadmap, and collaborate with talented people who care deeply about impact, quality, and long-term thinking.

#LI-KG1
#LI-BRAZIL
#LI-INDIA

The Opportunity

Our AI teams build highly available, low-latency microservices using modern, cloud-native technologies. This role sits within our broader AI organization and focuses on developing the platforms, services, and tooling that support AI-powered products — from inference and embeddings to APIs, data flows, and observability.

You’ll work in a fast-paced environment where reliability, performance, and usability matter just as much as innovation. While some squads work closer to inference pipelines and LLM tooling, others focus on platform foundations, troubleshooting and reliability, data systems, or observability — all critical to delivering AI in production at scale.

What You’ll Do

• Build, test, and deploy scalable microservices for AI-powered systems, including text and voice processing
  
  
• Design developer-friendly APIs, agents and internal tools that make AI easy to use across the Telnyx product ecosystem
  
  
• Contribute to AI inference, embeddings, and platform services that support real-time and low-latency workloads
  
  
• Optimize performance, reliability, and observability in production environments
  
  
• Collaborate closely with Product, Infrastructure, and ML teams to bring features from ideation to production
  
  
• Troubleshoot, debug, and support critical systems running in production
  
  
• Participate in code reviews and uphold high engineering and operational standards
  
  

Depending on the squad, your focus may lean more toward inference pipelines, platform foundations, observability, data systems, or production troubleshooting.

Who We’re Looking For

• Someone who has built something with cutting-edge AI tooling (something that has only become possible in the last 6 months, rolling from application date). It doesn't really matter what it is; we just want to know you are building and staying up to date.
  
  
• Strong understanding of async programming, concurrency, and parallel execution
  
  
• Experience with microservice-based systems
  
  
• Excellent communication skills and the ability to work effectively across teams
  
  

Nice to Haves

• Familiarity with LLM frameworks and tools (e.g. PyTorch, Transformers, DeepSpeed, vLLM)
  
  
• Experience with distributed computing frameworks such as Ray (Ray Core, Serve, Train)
  
  
• Exposure to cloud-native stacks (Docker, Kubernetes, Prometheus, Jaeger)
  
  
• Knowledge of LLM optimization techniques (e.g. quantization, speculative decoding)
  
  
• Background in Retrieval Augmented Generation (RAG) systems
  
  
  

How We Hire Across Our AI Teams

Our AI Chapter is made up of multiple squads, including:

• AI application & software engineering
  
  
• Platform & infrastructure foundations
  
  
• Troubleshooting, reliability, and production support
  
  
• Data, storage, and embeddings
  
  
• Observability and performance monitoring
  
  

We hire into a shared AI engineering pipeline. During interviews, we focus on core engineering skills, system design, and problem-solving ability. Final squad alignment happens later, based on:

• Your strengths and interests
  
  
• Team needs at the time
  
  
• Where you’ll have the biggest long-term impact
  
  

This means the exact focus of the role may vary by squad, but the core expectation remains the same: building reliable, scalable AI systems in production.

Why You’ll Love It Here

At Telnyx, we’re not just building products — we’re building the future of intelligent communication. Our TelnyxAI platform empowers developers and businesses to:

• Store and serve vector embeddings at scale
  
  
• Use open-source models with our hosted inference infrastructure
  
  
• Deploy multimodal AI features across text, voice, and storage seamlessly
  
  

You’ll have the autonomy to take ownership of meaningful projects, contribute ideas that shape the product roadmap, and collaborate with talented people who care deeply about impact, quality, and long-term thinking.

#LI-KG1
#LI-VIETNAM
#LI-BRAZIL
#LI-INDIA

The Opportunity

Our AI teams build highly available, low-latency microservices using modern, cloud-native technologies. This role sits within our broader AI organization and focuses on developing the platforms, services, and tooling that support AI-powered products — from inference and embeddings to APIs, data flows, and observability.

You’ll work in a fast-paced environment where reliability, performance, and usability matter just as much as innovation. While some squads work closer to inference pipelines and LLM tooling, others focus on platform foundations, troubleshooting and reliability, data systems, or observability — all critical to delivering AI in production at scale.

What You’ll Do

• Build, test, and deploy scalable microservices for AI-powered systems, including text and voice processing
  
  
• Design developer-friendly APIs, agents and internal tools that make AI easy to use across the Telnyx product ecosystem
  
  
• Contribute to AI inference, embeddings, and platform services that support real-time and low-latency workloads
  
  
• Optimize performance, reliability, and observability in production environments
  
  
• Collaborate closely with Product, Infrastructure, and ML teams to bring features from ideation to production
  
  
• Troubleshoot, debug, and support critical systems running in production
  
  
• Participate in code reviews and uphold high engineering and operational standards
  
  

Depending on the squad, your focus may lean more toward inference pipelines, platform foundations, observability, data systems, or production troubleshooting.

Who We’re Looking For

• Someone who has built something with cutting-edge AI tooling (something that has only become possible in the last 6 months, rolling from application date). It doesn't really matter what it is; we just want to know you are building and staying up to date.
  
  
• Strong understanding of async programming, concurrency, and parallel execution
  
  
• Experience with microservice-based systems
  
  
• Excellent communication skills and the ability to work effectively across teams
  
  

Nice to Haves

• Familiarity with LLM frameworks and tools (e.g. PyTorch, Transformers, DeepSpeed, vLLM)
  
  
• Experience with distributed computing frameworks such as Ray (Ray Core, Serve, Train)
  
  
• Exposure to cloud-native stacks (Docker, Kubernetes, Prometheus, Jaeger)
  
  
• Knowledge of LLM optimization techniques (e.g. quantization, speculative decoding)
  
  
• Background in Retrieval Augmented Generation (RAG) systems

How We Hire Across Our AI Teams

Our AI Chapter is made up of multiple squads, including:

• AI application & software engineering
  
  
• Platform & infrastructure foundations
  
  
• Troubleshooting, reliability, and production support
  
  
• Data, storage, and embeddings
  
  
• Observability and performance monitoring
  
  

We hire into a shared AI engineering pipeline. During interviews, we focus on core engineering skills, system design, and problem-solving ability. Final squad alignment happens later, based on:

• Your strengths and interests
  
  
• Team needs at the time
  
  
• Where you’ll have the biggest long-term impact
  
  

This means the exact focus of the role may vary by squad, but the core expectation remains the same: building reliable, scalable AI systems in production.

Why You’ll Love It Here

At Telnyx, we’re not just building products — we’re building the future of intelligent communication. Our TelnyxAI platform empowers developers and businesses to:

• Store and serve vector embeddings at scale
  
  
• Use open-source models with our hosted inference infrastructure
  
  
• Deploy multimodal AI features across text, voice, and storage seamlessly
  
  

You’ll have the autonomy to take ownership of meaningful projects, contribute ideas that shape the product roadmap, and collaborate with talented people who care deeply about impact, quality, and long-term thinking.

#LI-KG1
#LI-BRAZIL

About the role

As a Sr. Software Engineer on the QA Automation Tools team, you will drive initiatives that enable our QA and development teams to move faster and ship with greater confidence. Embedded with the development team,  you'll architect scalable automation solutions for a live multiplayer game where dynamic content — character customizations, ability interactions, and procedurally generated scenarios — creates a testing surface that requires adaptive, not static, strategies.

Agentic development is a core part of how this role operates, not an aspiration. You'll integrate AI-assisted workflows from day one, using coding agents to accelerate test creation, debugging, and code review while maintaining the engineering judgment to steer, verify, and override. You'll work directly with developers to influence how systems are built for testability, and communicate your decisions clearly enough that other engineers can carry the work forward.

What you’ll achieve

• Design adaptive test automation for dynamic game content — character customization, map scenarios, and procedurally generated content (PGC) — using approaches that stay valid as content evolves without requiring manual test plan rewrites
• Propose game engineering changes that improve testability: test hooks in generation tools, game data structures that support combinatorial testing, metadata that enables bot automation
• Integrate AI-assisted workflows into automation delivery end-to-end, from test scaffolding and debugging to code review and pipeline integration
• Integrate quality efforts throughout the development lifecycle, including automation frameworks, build pipelines, and performance metrics
• Set technical standards for the team's automation code, shape cross-project QA strategy, and share reusable patterns that let other engineers maintain quality as the team scales

What You’ll Need to Be Successful

• Proficiency in Python or C#, with demonstrated experience designing and building QA automation frameworks from the ground up.
• Strong preference for Unity and Unity tooling, with hands-on experience testing game systems and client-side behavior; experience with other game engines also considered
• Demonstrated fluency with coding agents as a daily engineering tool — not just prompting, but integrating AI into test creation, debugging, and code review with sound judgment about when to steer, verify, and override
• Ability to think abstractly about test coverage: you define the problem space before reaching for solutions, and build systems that adapt to changing content rather than hard-coded approaches
• Experience with complex, interconnected game systems — combat, progression, economy, or procedural content — and validating correctness across large combinatorial spaces
• Experience with CI/CD platforms such as GitHub Actions, Jenkins, or TeamCity, and the ability to integrate automated content tests into build pipelines.
• Demonstrated ability to collaborate cross-functionally, balance shifting priorities, and deliver iteratively in a fast-moving prototyping environment.
• Nice to have: Knowledge of AWS cloud services and experience with load testing infrastructure or distributed test execution.

Remote in Peru, Ecuador, Mexico, Brazil, Argentina, or any EST time zone fitting location

We are seeking a Senior Full Stack Engineer (Contractor) to join our dynamic Engineering team. This role is fully remote, offering an opportunity to contribute to exciting projects with the potential to transition into a long-term contractor position. As part of our highly experienced engineering team, you’ll work closely with Dave Brennan and be part of his team, giving you the opportunity to collaborate with him directly, learn from his experience, influence design decisions, and drive innovation while keeping the customer’s needs at the forefront.

WHO YOU ARE

As a Senior Full Stack Engineer (Contractor), you will develop advanced solutions using cutting-edge technologies, including cloud-based services, containerization, AI-driven features, adaptive process automation, and more. We’re looking for a passionate and innovative developer eager to build and scale the next wave of Hyperproof’s capabilities.

This role is a great opportunity for engineers who thrive in a collaborative, fast-paced environment and enjoy working on both frontend and backend solutions.

WHAT YOU WILL DO

• Develop and design engaging user experiences using TypeScript and React, Java, C#; Go experience is also valuable.
• Design backend components, including REST APIs, queueing, storage systems, security layers (role-based access control, encryption), and more.
• Leverage AI-powered development tools (e.g., code assistants, automated testing, and analysis tools) to improve engineering productivity, code quality, and delivery speed.
• Contribute to and help evolve AI-driven product features, including intelligent automation and adaptive workflows.
• Collaborate with Product Managers to understand customer needs and translate them into software solutions.
• Own the quality and performance of the applications you build, ensuring they are reliable, scalable, compliant, and meet both customer and business expectations.
• Build reusable software components for other developers and business users.
• Implement automated testing and ensure code maintainability through documentation and best practices.

WHAT YOU’LL BRING

• 5+ years of experience in software engineering, focusing on design and coding at a component level.
• Professional level of English language proficiency.
• A strong customer-first mindset, with the ability to translate requirements into modern, flexible software solutions.
• Proficiency in FrontEnd and BackEnd technologies.
• Experience developing and integrating REST APIs using JSON and/or XML.
• Familiarity with cloud services (Azure or similar) for deployment and debugging.
• Expertise in asynchronous programming and scalable software development.
• Understanding of agile methodologies (Scrum/Kanban) and the ability to work effectively in agile teams.
• Bachelor's degree in Computer Science, Mathematics, or related experience.
• Excellent communication and collaboration skills, with the ability to mentor and take ownership of projects.

DESIRED DEVELOPERS SKILLS 

• TDD (Test Driven Development) and refactoring skills
• Experience in structuring the code for testability to separate unit-testable logic and integration-testable boundary code
• Nice to have: Pairing/mobbing experience and/or XP (eXtreme Programming) experience

This contract-to-hire arrangement provides a path to join the team permanently after successfully completing an exciting 6-12 month project.

CANDIDATE EXPERIENCE & INTERVIEW PROCESS

We value your time and aim to make the hiring process clear and efficient. The interview process includes:

1. 20-minute initial chat with our Senior Technical Talent Partner. 
2. Take-home technical assessment to showcase your skills. Utilizing Coderbyte platform.
3. Three 60-minute 1:1 interviews with our engineering team. One of them will be with the hiring manager. 

You’ll also have opportunities to ask questions and ensure this role aligns with your career goals.

LOCATION & WORK SETUP

This is a fully remote contractor position. We believe in hiring the best talent regardless of location and fostering a flexible work environment that allows you to thrive.

If you’re looking for an opportunity to work on exciting, high-impact projects with a growth-oriented company, we’d love to hear from you!

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next. What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

A premier global asset servicing provider. The company offers a comprehensive suite of financial solutions, including custody, fund administration, and middle-office services for institutional investors and corporate clients. Leveraging a strong presence across Europe and Latin America, the organization focuses on delivering scalable, technology-driven operations that ensure regulatory compliance and operational efficiency in the global securities market.

What You’ll Do

• Execute functional, regression, and system integration tests
• Design BDD test scenarios and create test plans based on financial-market rules
• Ensure full requirements coverage with end-to-end traceability between scenarios, evidence, and functionalities
• Validate data using SQL, with a strong focus on data integrity, consistency, and cross-system accuracy
• Test and analyze API behavior, including requests, responses, and edge conditions
• Create JIRA tickets with clear descriptions, structured evidence, and proper documentation
• Track defects throughout the lifecycle, perform retesting, and ensure timely resolution
• Manage and document test execution status (Passed, Failed, Blocked, etc.)
• Prepare and deliver Status Reports with key quality metrics
• Collaborate with multidisciplinary teams across the full development lifecycle

What You Bring

• Advanced knowledge of QA processes within agile development squads
• Strong understanding of testing methodologies: functional, regression, system integration
• Hands-on experience designing BDD test scenarios
• Solid understanding of financial market business rules, including: pricing, redemptions, fees, settlements, corporate actions, and reconciliations.
• Strong SQL skills for data validation and analysis
• Knowledge of API architecture and hands-on experience with API testing
• Strong focus on performance, data integrity, and analytical evaluation
• Proven ability to maintain full traceability from requirements through test coverage
• Experience creating structured, well-documented evidence-backed JIRA tickets
• Experience with end-to-end defect management
• Experience managing test scenarios, execution status, and structured reporting
• Experience preparing and delivering quality metrics in status reports
• Understanding of Waterfall and Agile methodologies
• Clear, objective communication with both technical and business stakeholders
• Strong analytical mindset with a high attention to detail
• Proactivity and a strong sense of urgency
• Ability to challenge requirements and anticipate testing impacts
• Collaboration, maturity, and accountability within squad environments
• Tools experience using JIRA, SharePoint, Excel, Postman, and SQL-based databases.

English level

Advanced (spoken and written)

Location

Onsite at client 3 times a week.

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next. What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

A premier global asset servicing provider. The company offers a comprehensive suite of financial solutions, including custody, fund administration, and middle-office services for institutional investors and corporate clients. Leveraging a strong presence across Europe and Latin America, the organization focuses on delivering scalable, technology-driven operations that ensure regulatory compliance and operational efficiency in the global securities market.

What You’ll Do

• Execute functional, regression, and system integration tests
• Design BDD test scenarios and create test plans based on financial-market rules
• Ensure full requirements coverage with end-to-end traceability between scenarios, evidence, and functionalities
• Validate data using SQL, with a strong focus on data integrity, consistency, and cross-system accuracy
• Test and analyze API behavior, including requests, responses, and edge conditions
• Create JIRA tickets with clear descriptions, structured evidence, and proper documentation
• Track defects throughout the lifecycle, perform retesting, and ensure timely resolution
• Manage and document test execution status (Passed, Failed, Blocked, etc.)
• Prepare and deliver Status Reports with key quality metrics
• Collaborate with multidisciplinary teams across the full development lifecycle

What You Bring

• Advanced knowledge of QA processes within agile development squads
• Strong understanding of testing methodologies: functional, regression, system integration
• Hands-on experience designing BDD test scenarios
• Solid understanding of financial market business rules, including: pricing, redemptions, fees, settlements, corporate actions, and reconciliations.
• Strong SQL skills for data validation and analysis
• Knowledge of API architecture and hands-on experience with API testing
• Strong focus on performance, data integrity, and analytical evaluation
• Proven ability to maintain full traceability from requirements through test coverage
• Experience creating structured, well-documented evidence-backed JIRA tickets
• Experience with end-to-end defect management
• Experience managing test scenarios, execution status, and structured reporting
• Experience preparing and delivering quality metrics in status reports
• Understanding of Waterfall and Agile methodologies
• Clear, objective communication with both technical and business stakeholders
• Strong analytical mindset with a high attention to detail
• Proactivity and a strong sense of urgency
• Ability to challenge requirements and anticipate testing impacts
• Collaboration, maturity, and accountability within squad environments
• Tools experience using JIRA, SharePoint, Excel, Postman, and SQL-based databases.

English level

Advanced (spoken and written)

Location

Onsite at client 3 times a week.

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Why Join Exadel

We’re an AI-first global tech company with 25+ years of engineering leadership, 2,000+ team members, and 500+ active projects powering Fortune 500 clients, including HBO, Microsoft, Google, and Starbucks.

From AI platforms to digital transformation, we partner with enterprise leaders to build what’s next. What powers it all? Our people are ambitious, collaborative, and constantly evolving.

About the Client

A premier global asset servicing provider. The company offers a comprehensive suite of financial solutions, including custody, fund administration, and middle-office services for institutional investors and corporate clients. Leveraging a strong presence across Europe and Latin America, the organization focuses on delivering scalable, technology-driven operations that ensure regulatory compliance and operational efficiency in the global securities market.

What You’ll Do

• Execute functional, regression, and system integration tests
• Design BDD test scenarios and create test plans based on financial-market rules
• Ensure full requirements coverage with end-to-end traceability between scenarios, evidence, and functionalities
• Validate data using SQL, with a strong focus on data integrity, consistency, and cross-system accuracy
• Test and analyze API behavior, including requests, responses, and edge conditions
• Create JIRA tickets with clear descriptions, structured evidence, and proper documentation
• Track defects throughout the lifecycle, perform retesting, and ensure timely resolution
• Manage and document test execution status (Passed, Failed, Blocked, etc.)
• Prepare and deliver Status Reports with key quality metrics
• Collaborate with multidisciplinary teams across the full development lifecycle

What You Bring

• Advanced knowledge of QA processes within agile development squads
• Strong understanding of testing methodologies: functional, regression, system integration
• Hands-on experience designing BDD test scenarios
• Solid understanding of financial market business rules, including: pricing, redemptions, fees, settlements, corporate actions, and reconciliations.
• Strong SQL skills for data validation and analysis
• Knowledge of API architecture and hands-on experience with API testing
• Strong focus on performance, data integrity, and analytical evaluation
• Proven ability to maintain full traceability from requirements through test coverage
• Experience creating structured, well-documented evidence-backed JIRA tickets
• Experience with end-to-end defect management
• Experience managing test scenarios, execution status, and structured reporting
• Experience preparing and delivering quality metrics in status reports
• Understanding of Waterfall and Agile methodologies
• Clear, objective communication with both technical and business stakeholders
• Strong analytical mindset with a high attention to detail
• Proactivity and a strong sense of urgency
• Ability to challenge requirements and anticipate testing impacts
• Collaboration, maturity, and accountability within squad environments
• Tools experience using JIRA, SharePoint, Excel, Postman, and SQL-based databases.

English level

Advanced (spoken and written)

Location

Onsite at client 3 times a week.

Legal & Hiring Information 

• Exadel is proud to be an Equal Opportunity Employer committed to inclusion across minority, gender identity, sexual orientation, disability, age, and more
• Reasonable accommodations are available to enable individuals with disabilities to perform essential functions
• Please note: this job description is not exhaustive. Duties and responsibilities may evolve based on business needs

Your Benefits at Exadel 

Exadel benefits vary by location and contract type. Your recruiter will fill you in on the details.

• International projects
• In-office, hybrid, or remote flexibility
• Medical healthcare
• Recognition program
• Ongoing learning & reimbursement 
• Well-being program
• Team events & local benefits 
• Sports compensation 
• Referral bonuses 
• Top-tier equipment provision

Exadel Culture

We lead with trust, respect, and purpose. We believe in open dialogue, creative freedom, and mentorship that helps you grow, lead, and make a real difference. Ours is a culture where ideas are challenged, voices are heard, and your impact matters.

Seeking to hire a Contractor based out of Mexico or Argentina for Lead Analytics Engineering Data Team

• We are looking for a Lead Analytics Engineer to join our data team.
• Reporting to the Hiring Manager, you will be responsible for applying data engineering best practices to analytics code to transform, test, and document data.
• You will provide clean and organized data sets to end users.
• You will be provide expert code reviews and mentorship to other engineers in the data space
• You will be responsible for building and maintaining composable data models, as well as optimizing SQL query performance for the models you build.
• You will transform raw data into business insights, working closely with stakeholders and developing analyses to answer critical business questions.
• You will create data visualizations and help stakeholders explore and understand the data visualization tools available to them.

Why you'll love this role:Data Modeling and Transformation

• Build new analyses and support existing ones using SQL and Python.
• Apply software engineering principles like version control and continuous integration to the analytics codebase.
• Expand our data warehouse with clean data ready for analysis.

Data Quality and Testing

• Apply advanced data testing strategies to ensure resulting datastores are aligned with expected business logic.
• Implement validation checks and automated testing procedures to manage data quality in your ETL/ELT pipelines.

Collaboration and Communication

• Work with stakeholders to define business logic and data expectations.
• Help drive a change in the usage of data by actively surfacing insights to stakeholders.
• Lead initiatives and problem definition, scoping, design, and planning.

Infrastructure and Automation

• Build tools and automation to run data infrastructure.
• Manage large-scale data migrations in relational datastores.

Why you're a great fit:

• 8+ Years experience working with data in a software environment. 
• Required Skills: Mastered proficiency in SQL and Python; advanced experience managing business semantic layer tooling, data catalog tooling and  data integrity testing frameworks. Experience with dbt orchestration and best practices.
• You have a track record of working autonomously and proactively, with deep domain knowledge of data systems.
• Required Tech Stack: SQL, Python, relational datastores, DAG tooling (like Dagster or Airflow), dbt and Tableau.
• Experience with cloud-based infrastructure (AWS, GCP, Terraform) and document, graph, or schema-less datastores.

Please note that given the nature of the contract, this role will not be eligible to participate in company-sponsored benefits

About Newsela:

Newsela is a leading education technology company dedicated to meaningful classroom learning for every student. We deliver integrated, AI-powered solutions designed to unlock student engagement, empower teachers, and drive meaningful learning outcomes. Our suite of products supports knowledge and skill development, writing practice, daily instruction, assessment, and data-informed decision-making across K–12 classrooms. Grounded in learning science research, Newsela’s solutions integrate content, assessment, and analytics to help educators track progress, understand student outcomes, and deliver high-impact instruction that supports every learner.

#LI-Remote

Why You'll Love This Role: 

As a Senior Full-Stack QualityEngineer, you will be a critical force in ensuring that mission is delivered through reliable, high-quality software. You will work  alongside talented product engineers to test complex front-end applications powered by cloud-based back-end services, internal LLMs, and third-party AI tools.  The ideal candidate will have strong  experience in test automation, API validation, manual testing, and performance testing, with a proactive mindset and excellent organizational skills. This role requires someone who can deeply understand business and technical requirements and translate them into effective test strategies.

What You'll Be Doing:

• You will own quality end-to-end: from story acceptance criteria all the way to production health monitoring.
• You will perform manual testing for exploratory, regression, and end-to-end scenarios when needed.
• You will review and analyze business and technical requirements to define appropriate test coverage Collaborate closely with developers, product managers, and other stakeholders to ensure quality across the SDLC.     
• You will build API and service-layer test automation from scratch; test APIs both manually (via tools like Postman) and through automated scripts.  
• You will test internally built LLMs and AI-driven features for accuracy, consistency, and edge case behavior.
• Evaluate third-party AI tools and services integrated into the Newsela platform.                                                    

About You:

• 7+ years of software testing and quality assurance experience in a professional engineering environment.
• 4+ years building automated test frameworks and scripts using TypeScript, JavaScript, or Python.                                    
• 4 + years of hands-on experience with WebdriverIO and/or Playwright.                             
• 4+ years working in an Agile Scrum team.                                                                                            
• Demonstrated experience across the full spectrum of testing types: manual, exploratory, regression, integration, API/services, and  database testing.                                                                                                                     
• Experience testing both web applications and mobile apps.                                                                           
• Hands-on experience with AI coding assistants (e.g., Claude Code, GitHub Copilot) as part of your daily workflow. 
• Strong written and verbal communication skills — you can explain a bug to a developer and a risk to a product manager equally well.
• Prior experience in EdTech or consumer-facing SaaS products.     

Please note that given the nature of the contract, this role will not be eligible to participate in company-sponsored benefits

About Newsela:

Newsela is a leading education technology company dedicated to meaningful classroom learning for every student. We deliver integrated, AI-powered solutions designed to unlock student engagement, empower teachers, and drive meaningful learning outcomes. Our suite of products supports knowledge and skill development, writing practice, daily instruction, assessment, and data-informed decision-making across K–12 classrooms. Grounded in learning science research, Newsela’s solutions integrate content, assessment, and analytics to help educators track progress, understand student outcomes, and deliver high-impact instruction that supports every learner.

#LI-Remote

About Us

Nu is one of the largest digital financial platforms in the world, with more than 122 million customers across Brazil, Mexico, and Colombia. Guided by our mission to fight complexity and empower people, we are redefining financial services in Latin America and this is still just the beginning of the purple future we're building.

Listed on the New York Stock Exchange (NYSE: NU), we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human.

Our impact has been recognized by global rankings such as Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. Visit our institutional page https://international.nubank.com.br/careers/  

About the Role

We are looking for an experienced engineer who thrives on solving "meta-problems"—fixing the tools and processes that other teams rely on. You will be responsible for designing and implementing high-leverage automation, managing enterprise tool rollouts (e.g., Postman, n8n), and defining the technical governance for our next-generation AI workflows.

Key Responsibilities

• Enterprise Automation & Platform Engineering:
  • Lead the implementation and maintenance of automation platforms (e.g., n8n) to orchestrate workflows across business units.
  • Design and optimize critical communication infrastructure (e.g., AWS SES, email delivery resilience) to ensure high availability for internal and transactional messaging.
• AI & "Vibe Coding" Governance:
  • Drive the technical strategy for AI adoption within engineering workflows.
  • Develop governance frameworks to ensure safe, compliant, and effective use of AI coding assistants and agents.
  • Build "Minimum Control Platforms" that balance developer freedom with security and operational risk requirements.
• Internal Tooling Standards:
  • Define and enforce usage standards for developer tools (e.g., Postman for API lifecycle), ensuring consistency across squads.
  • Conduct "Discovery Design" for new internal products, ensuring they are inclusive and scalable across different technical frameworks.
• Cross-Functional Technical Leadership:
  • Act as a technical reference for the domain, influencing architectural decisions beyond the immediate team. Mentor senior engineers and partner with stakeholders (ITSec, Privacy) to align technical solutions with company policies.

What are we looking for?

Technical Skills

• Solid Software Engineering Background: Proficiency in modern programming languages (Clojure, Java, or Python preferred) and distributed systems.

• Infrastructure & Cloud: Strong hands-on experience with AWS (specifically services like SES, Lambda, IAM) and Infrastructure-as-Code (Terraform/CloudFormation).

• Automation Mindset: Experience with workflow automation tools (n8n, Zapier, or custom orchestration engines) and API integration.

• AI/LLM Familiarity: Interest or experience in integrating LLMs/AI agents into developer workflows (e.g., Cursor, Copilot, internal AI agents).

• Advanced English

Behavioral & Strategic Skills

• Governance-Aware: You understand that "efficiency" must be balanced with "security." You can design systems that are safe by default without destroying developer velocity.
• Problem Solver: You are comfortable debugging opaque infrastructure issues (like email deliverability drops) one day and writing a strategic policy document the next.
• Multiplier: You enjoy documenting your work, creating "Golden Paths" for other engineers, and teaching others how to use the tools you build.

Our Benefits

• Chance of earning equity at Nubank
• Food/ Meal Card (Vale-Refeição and/or Vale Alimentação)
• Public Transportation Commuting Benefit (Vale-Transporte)
• NuCare – Psychological, Financial and Legal Assistance Program
• Life Insurance
• Medical Plan
• Dental Plan
• NuLanguage – Language Course Program
• Nucleo - Our learning platform of courses
• Extended Parental Leave
• Daycare Allowance
• Parental Consultancy
• Work-from-home Allowance
• Gym Partnerships
• 30 days of paid vacation
• Relocation Assistance Package, if applicable

Work Model for this Role

Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration. For more details, visit https://building.nubank.com/nu-hybrid-work-model/

Who We Are

Build. Scale. Sustain. 

PALO IT is a global technology consultancy that crafts tech as a force for good. We design, develop and scale digital and sustainable products and services to unlock value across the triple bottom line: people, planet, profit. We do the right thing, and we do it right. We're proud to be a World Economic Forum New Champion, and a B Corp-certified company. 

• We are small enough to care locally, big enough to deliver globally (5 continents, 18 offices, +650 experts from +50 nationalities)

• We are robust and resilient (100% independent and 0 debt)

• We are entrepreneurs and passionate experts: We invest in what we believe genuinely and work as a collective intelligence

• We are positive, courageous, caring, doers and committed to excellence

About Gen-e2

While the market is still largely AI-augmenting delivery, we have reinvented the SDLC to be AI First. Our approach is a game-changer in productivity and quality, with a strong collaboration between IA generative and our best Talents:

• We now generate 95% of the entire product — code, documentation, infrastructure as code, and even design — with GitHub Copilot.

• The quality consistently exceeds the output of our best traditional engineering teams.

• A product repository houses all product artefacts, giving AI full project context for higher-quality generation.

• A library of rules and prompts defines coding standards, design principles, and security guidelines, ensuring enterprise-grade quality and scalability.

With Gen-e2, we deliver end-to-end products 2–3× faster than traditional approaches, while raising the bar for engineering excellence.

Your Role

As a Tech Lead Full Stack with a strong software architecture mindset, you will lead the technical delivery of digital products end-to-end hands-on when needed while guiding teams toward scalable, secure, and maintainable solutions.

• Lead the design and evolution of technological solutions, ensuring scalability, performance, security, and maintainability.
• Drive architectural decisions and trade-offs (e.g., microservices vs. modular monolith), applying patterns such as DDD, Clean/Hexagonal Architecture, and event-driven approaches when relevant.
• Design, build and evolve APIs (REST), including versioning, contract-first practices (OpenAPI), backward compatibility, and robust error handling.
• Define and enforce engineering standards (clean code, test strategy, code reviews, observability, security practices, CI/CD).
• Mentor and coach engineers, fostering a strong delivery culture and raising the engineering bar across the team.
• Partner with Product, QA, UX and stakeholders to refine scope, assess technical risks, shape the roadmap, and deliver incrementally.
• Encourage AI-first engineering practices (e.g., Copilot/GenAI) with proper governance: quality gates, security, traceability, and testing.

Who You Are

• 10+ years of software engineering experience with proven technical leadership (Tech Lead, Lead Engineer, or strong senior with leadership responsibilities).
• Strong backend expertise in Java (ideally 17/25+) or .net, with solid testing practices (JUnit/Mockito) and performance awareness.
• Strong frontend expertise in Angular (ideally 12+) with TypeScript, RxJS, frontend architecture, and performance best practices.
• Proven ability to design and communicate software architecture: microservices/modular monoliths, Clean/Hexagonal, SOLID principles, integration patterns, and API design.
• Strong engineering fundamentals: CI/CD, Git workflows, code review practices, observability (logs/metrics/traces), and secure-by-design mindset.
• Kafka/RabbitMQ, event-driven architectures, CQRS, saga/outbox patterns.
• Docker/Kubernetes, Terraform/IaC, and cloud experience (AWS/Azure/GCP).
• OAuth2/OIDC, JWT, and security best practices (OWASP).
• Experience in high-traffic systems, performance tuning, caching strategies.
• Experience working in AI-assisted engineering environments and setting quality/security guardrails.
• Excellent communication and stakeholder management skills; able to influence decisions and align teams.
• Professional English (B2+ preferred) for global collaboration and documentation.

More About PALO IT

We’re eager to adapt to change, learn from our experiences and move to meet our planet’s urgent needs. We are continuously taking action to:

• Become a climate net-zero company

• Deliver projects with a positive impact

• Train 100% of our workforce on impact

• Achieve B Corp certification among all our offices across the globe

• Continuously measure & improve employee happiness

Our clients are amongst the world's most successful companies. We innovate with established Fortune 1000s, SMEs and start-ups who aim to make an impact, become global leaders and address the world's most complex challenges.

What We Offer

• Stimulating working environments

• Unique career path

• International mobility

• Internal R&D projects

• Knowledge sharing

• Personalized training

• Entrepreneurship & intrapreneurship

For more on our team culture and benefits,

Check out our careers page.
And our PALOCast with direct testimonies from our Palowans!

PALO IT is an equal opportunity employer that values merit, qualifications, and abilities. We prioritize privacy and data security. For more information on our privacy practices, please refer to our Privacy Policy.

Let's start with the role

As a Software Engineer in Test, you will utilize your experience and technical expertise to make your mark in our software development’s life cycle. Relish the chance to create an impact in this key role where you will liaise with talented engineers and business experts. Your understanding of the testing life-cycle will see you liaise seamlessly with a broad cross-section of colleagues, product owners and stakeholders, and provide a vote of confidence regarding the quality of the product.

• Review user stories and acceptance criteria in order to develop effective test plans and both manual and automated tests cases in collaboration with the development team
• Participate actively in scrum ceremonies in order to distribute test cases according to the test pyramid
• Estimate, prioritize, plan and coordinate testing activities
• Responsible for the STLC of new features on testing suites, taking technical ownership to ensure timely and quality delivery
• Researching test tools, methodologies, and trends and upgrading existing practices and processes.

What you’ll bring

We are looking for a Software Engineer in Test who is a team player with a can-do attitude and excellent communication skills.

• BS/MS degree in Computer Science/Software Engineering or an IT related discipline
• Strong experience as a Software Development Engineer in Test
• Hands on experience in OOP languages (C# preferable)
• Strong knowledge of software QA methodologies, tools and processes
• Hands-on experience with web browser automation tools (e.g. Selenium / Playwright)
• Good understanding of all levels of the testing pyramid
• Experience in defect tracking and test management tools such as JIRA, X-Ray etc
• Familiarity with relational database engines (SQL)
• Experience working with Agile/Scrum software development methodology
• Experience working closely with product teams to understand requirements and verify/validate they are met
• Passion for continuous learning and self-development
• Fluent communication skills in English (both written & verbal)

Nice to have

• Understanding of Behavior Driven Development

Kaizen Gaming Perks

• 🕑 Hybrid way of working & remote options
• 🏃 A buddy will support you with your onboarding
• 💸 Competitive pay and bonus scheme
• 👩‍⚕️ Private health insurance for you and your family
• 💰 Monthly meal allowance 
• ⭐Developmental 360° feedback framework
• 📚 Unlimited access to Udemy & continuous training

#LI-Hybrid

Come join Karat's Interview Engineer Community!

Karat is always seeking talented engineers to join our Community. If you are interested in being considered for a future Interview Engineer opportunity, please submit your application to this posting.

This is a contractor/freelancer opportunity, and work is compensated based on tasks performed. Currently, we are only accepting applications from candidates in the countries on our website, and require that resumes be submitted in English.

What Interview Engineers do:

Interview Engineers facilitate technical interviews with software developers around the world. As an Interview Engineer, you will create inclusive hiring processes by mitigating bias, improving hiring signals, and completing objective evaluations. These skills are critical to hiring and managing teams in startups and large enterprises. As a Karat Interview Engineer, you will:

• Interview—Facilitate an interview through Karat's platform. Create an enjoyable candidate experience while you evaluate a candidate's fundamental coding skills and technical knowledge.
• Evaluate—Provide input on the candidate's performance, coding style, communication skills, knowledge question answers, and coding approach.
• Partner—Collaborate with Karat to test content, processes, and products.

The experience you will bring:

• 3+ years of experience as a Software Developer or Engineer
• Excellent English communication skills (written and oral) with a high level of professionalism and interpersonal skills
• Reliable access to a working webcam, microphone, and a stable Internet connection
• Experience conducting technical interviews is preferred (e.g., data structures, algorithms)

While we review your application, learn more about life as an Interview Engineer by watching this video!

The salary range for this role is $1,500 - $2,700 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role:

We are seeking a talented and motivated  Junior Software engineer who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. The Junior Software Engineer will assist us with the design, development, and installation of software solutions. Your duties will include development, writing code, and documenting functionality. You should be able to build high-quality, innovative and fully performing software in compliance with coding standards and technical design.

Compensation:

For this junior development role, with 0-3 years of experience, the compensation range is $1,500 - $2,700 USD per month. This range is designed to accommodate early-career professionals and reflects the foundational skills and potential for growth within the role.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

Sezzle Technical Stack:

• Golang backend, React / React Native front-end
• Grafana / Loki / Prometheus metrics
• Kubernetes
• AWS
• Amazon Aurora (MySQL) RDS
• Gitlab CI/CD deployments
• Unit, Integration, and end-to-end testing

What You'll Do:

• Be an integral part of the software development lifecycle
• Work as an integrated team member developing new features
• Evaluate and deploy software tools, processes, and metrics
• Provide support and consulting on software systems usage
• Ensure compliance with project plans and industry standards

What We Look For:

• Experience working on single page web applications (SPA)
• Experience with backend API development
• Experience with relational database storage and retrieval
• Familiarity with software engineering tools, software development methodology, and release processes
• BS degree in Computer Science or Engineering, or equivalent experience

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

#Li-remote #Full-time

The salary range for this role is $4,600 - $9,500 per month (Gross in USD)

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role: 

We are seeking a talented and motivated Senior Mobile Engineer who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

Compensation

The compensation range for the role is as follows:

• 4,600 - 9,500 USD Monthly

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

What You'll Do: 

• Help own and build out new features within our cross-platform TypeScript React Native app, and Golang backend APIs.
• Manage our releases, using tools like cohorting, feature flags, and app-store infrastructure to ensure a safe rollout to our millions of active users.
• Maintain a strong working relationship with product, design, and the business to ensure stakeholder needs are being evaluated and met.
• Work with the team to continuously build clean, scalable, robust, and testable code.
• Develop a deep working knowledge of your application, data domain, and KPIs.

What We Look For:  

• 6+ years experience solving technical problems as part of a team.
• Experience developing and delivering a mobile application to Apple and Google’s mobile app stores.
• Experience with Swift.
• Strong familiarity with modern Frontend Development, Javascript or Typescript, and building applications with React Native, or similar cross-platform framework.
• Understanding of relational databases like MySQL.
• Bachelor's degree in computer science

Preferred Knowledge and Skills:

• Knowledgeable in writing automated tests for applications (unit, integration, end-to-end), and implementing them in a CI environment.
• Ability to solve problems with backend-focused languages like Go, Python, Java or similar.
• Familiarity with typical microservice architecture composed of HTTP APIs.
• Experience working with native code on iOS, Android.

About You: 

• • You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
  • You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
  • You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
  • You earn trust - you listen attentively, speak candidly, and treat others respectfully.
  • You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

#Li-remote #Full-time

The salary range for this role is $5,000 - $9,500 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

Compensation:

For this senior development role, with 8+ years of experience, the compensation range is $5,000 - $9,500  USD per month. This range acknowledges the extensive expertise, leadership capabilities, and significant contributions expected at this level, offering a competitive salary to reflect the value of advanced skills and experience.

About the Role: 

We are seeking a talented and motivated Senior Software Engineer who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

As a Senior Software Engineer with Sezzle, you will work with a highly-motivated team to tackle interesting and challenging problems across multiple areas of the organization. Your experience and guidance will help other members of the team level-up their own skills as well.

In this backend focused role, you will work closely with stakeholders from Product, Support and the business. You’ll also partner with other engineering teams to provide high-quality, scalable, and innovative solutions to internal and customer problems. Your day-to-day responsibilities will include designing, developing, and delivering new features, as well as unblocking and mentoring your teammates.

This role has both an internal and external focus, your contributions will make a meaningful difference in the day-to-day lives of your peers at Sezzle, enhancing their ability to support our business and customers, and you will have opportunities to take any feedback and iterate.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Interview with recruiters (30 min)
• Coding assessment (~1.5 hours)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

What you'll do: 

• Design software applications and features in Golang and React
• Help build out a distributed architecture, creating solutions that work within it, maintaining consistency while scaling highly
• Coordinate with internal company stakeholders to design market winning products
• Develop and collect metrics to drive continuous improvement of existing products
• Deliver high quality features which can be tested and adheres to reporting standards
• As needed, lead small development teams to bring a project to market
• Mentor other engineering teammates to help elevate their experience and knowledge

What We Look For: 

• At least 7 years of full-stack software engineering experience
• Experience bringing new ideas and building consensus on the path forward
• Experience with building and serving REST APIs using Go (preferably) and Java Python or a similar language.
• Experience working in a distributed, cloud-based architecture, with either design patterns like transactional outboxes, or queuing tools like RabbitMQ, SQS, Kafka
• BS in Computer Science or similar degree.

Preferred Knowledge and Skills:

• Experience with SQL based RDMS through an ORM tool
• Comfortable using observability platforms like Prometheus, or vendor solutions like NewRelic or Datadog to instrument your code for production monitoring and alerting.
• DevOps experience with CI/CD pipelines
• Familiarity with containerized micro-service architecture deployed with Kubernetes on AWS
• Demonstrated history of delivering commercial APIs and web applications
• A clear record of getting products to market and prioritizing solutions and improvements based on stakeholder/customer feedback.

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results - you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

#Li-remote #Full-time

The salary range for this role is $1,500 - $4,000 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role:

We are seeking a talented and motivated Junior Software Engineer with a unique blend of accounting experience  who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. This role is tailored for professionals who started their careers in accounting but pivoted to engineering and now want to leverage their domain expertise to solve technical challenges in fintech. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. The Junior Software Engineer will assist us with the design, development, and installation of software solutions. Your duties will include development, writing code, and documenting functionality. You should be able to build high-quality, innovative and fully performing software in compliance with coding standards and technical design.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

Sezzle Technical Stack:

• Golang backend, React / React Native front-end
• Grafana / Loki / Prometheus metrics
• Kubernetes
• AWS
• Amazon Aurora (MySQL) RDS
• Gitlab CI/CD deployments
• Unit, Integration, and end-to-end testing

What You'll Do:

• Collaborate with cross-functional teams to enhance and maintain software solutions for financial processes.
• Be an integral part of the software development lifecycle.
• Work as an integrated team member developing new features.
• Leverage accounting background to identify gaps and improve automation and reconciliation workflows.
• Evaluate and deploy software tools, processes, and metrics.
• Provide support and consulting on software systems usage.
• Ensure compliance with project plans and industry standards.

What We Look For:

• Prior experience as an accountant or financial analyst.
• Solid understanding of financial operations such as reconciliation, reporting, and compliance.
• Proficient in at least one programming language (e.g., Python, Java, Go) and familiar with database systems like MySQL or PostgreSQL.
• Experience with backend API development.
• Experience with relational database storage and retrieval.
• Familiarity with software engineering tools, software development methodology, and release processes.
• Bachelor’s degree in Accounting, Computer Science, or a related field.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

#Li-remote #Full-time

The salary range for this role is $2,800 - $6,000 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

Compensation:

For this mid-level development role, with 3-7 years of experience, the compensation range is $2,800 - $6,000 USD per month. This range is designed to reflect the skills, experience, and value brought to the team, ensuring competitive and fair pay within the industry.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

About the Role: 

We are seeking a talented and motivated Software Engineer II who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.
 As a Software Engineer II, you will be responsible for solving our most challenging problems along with a highly-motivated team.

In this role, you will work closely with other engineers across multiple teams to provide high-quality, scalable, and innovative products. Your day-to-day responsibilities will include partnering with other engineers to design, develop, and deliver new features. As your skills grow so will the size and scope of the projects which you’ll be involved in. Sezzle has a strong culture for promotion with defined paths through Engineering that matches all levels. You’ll be working as part of a full-stack Engineering team which has varied disciplines.

What You'll Do: 

• Build and maintain new innovative product features focused on actively learning new areas of the product
• Collaborate with owners for different product features to gain insight and offer constructive suggestions for improvements
• Be an active participant in design/architecture discussions sharing your ideas while building the next generation of features for the Sezzle platform  
• Hands-on with our codebase and a contributor to code reviews
• Mentor other engineers who are starting along their career path
• Work with the team to continuously build and deploy scalable solutions
• Assist in planning, estimations, and completion for projects brought up by the team stakeholders
• Be on a on-call rotation to respond to production incident.

What We Look For: 

• Experience solving technical problems as part of a team
• Bachelor's in computer science (preferred) or equivalent related experience 
• Familiarity with modern Frontend Development, with React experience preferred
• Ability to solve problems with backend-focused languages like Go or similar compiled statically typed language
• Intermediate understanding of relational databases like MySQL

Preferred Knowledge and Skills:

• Knowledgeable in writing automated tests for applications (unit, integration, end-to-end)
• Familiar with the basic principles and design of RESTful APIs
• Basic knowledge of a Microservice Architecture
• Close familiarity with software engineering tools, software development methodology, and release processes

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results - you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

#Li-remote #full-time

The salary range for this role is $2,800 - $6,000 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role:

We are seeking a talented and motivated Software Engineer with a unique blend of accounting experience  who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. This role is tailored for professionals who started their careers in accounting but pivoted to engineering and now want to leverage their domain expertise to solve technical challenges in fintech. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. The Software Engineer will assist us with the design, development, and installation of software solutions. Your duties will include development, writing code, and documenting functionality. You should be able to build high-quality, innovative and fully performing software in compliance with coding standards and technical design.

Compensation:

For this mid-level development role, with 3-7 years of experience, the compensation range is $2,800 - $6,000 USD per month. This range is designed to reflect the skills, experience, and value brought to the team, ensuring competitive and fair pay within the industry.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

Sezzle Technical Stack:

• Golang backend, React / React Native front-end
• Grafana / Loki / Prometheus metrics
• Kubernetes
• AWS
• Amazon Aurora (MySQL) RDS
• Gitlab CI/CD deployments
• Unit, Integration, and end-to-end testing

What You'll Do:

• Collaborate with cross-functional teams to enhance and maintain software solutions for financial processes.
• Be an integral part of the software development lifecycle.
• Work as an integrated team member developing new features.
• Leverage accounting background to identify gaps and improve automation and reconciliation workflows.
• Evaluate and deploy software tools, processes, and metrics.
• Provide support and consulting on software systems usage.
• Ensure compliance with project plans and industry standards.

What We Look For:

• Prior experience as an accountant or financial analyst.
• Solid understanding of financial operations such as reconciliation, reporting, and compliance.
• Proficient in at least one programming language (e.g., Python, Java, Go) and familiar with database systems like MySQL or PostgreSQL.
• Experience with backend API development.
• Experience with relational database storage and retrieval.
• Familiarity with software engineering tools, software development methodology, and release processes.
• Bachelor’s degree in Accounting, Computer Science, or a related field.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

#Li-remote #Full-time

The salary range for this role is $5,000 - $9,500 per month (Gross in USD) 

Hiring Manager: Matthew Sedlacek

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role: 

We are seeking a talented and motivated Senior Software Engineer with accounting and financial experience. This role offers an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for leadership and innovation.

This position is ideal for professionals who began their careers in accounting or finance and later transitioned into software engineering — individuals who now want to leverage that domain expertise to architect and scale technical solutions that solve complex financial challenges in fintech.

As a Senior Software Engineer, you will design, develop, and optimize high-impact systems that power Sezzle’s financial reporting, reconciliation, and automation workflows. You’ll partner closely with cross-functional teams — including Accounting and Finance — to ensure data integrity, streamline financial processes, and build robust, auditable systems that meet enterprise-grade standards.

Your role will extend beyond development. You’ll mentor engineers, shape technical direction, and bring a strong sense of ownership to every project you lead. You should be able to build high-quality, innovative, and fully performing software in compliance with coding standards, technical design, and regulatory best practices.

Compensation:

For this senior development role, with 8+ years of experience, the compensation range is $5,000 - $9,500 USD per month. This range acknowledges the extensive expertise, leadership capabilities, and significant contributions expected at this level, offering a competitive salary to reflect the value of advanced skills and experience.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

What You'll Do: 

• Collaborate with cross-functional teams to enhance and maintain software solutions for financial processes.
• Participate fully in the software development lifecycle, from design through deployment.
• Build new features and products as part of an integrated engineering team.
• Leverage accounting background to identify gaps and improve automation and reconciliation workflows.
• Evaluate and deploy software tools, processes, and metrics.
• Provide support and consulting on software systems usage.
• Ensure compliance with project plans and industry standards.
• Design software applications and features in Golang
• Build reports and automations using Python and SQL.
• Help build out a distributed architecture, creating solutions that work within it, maintaining consistency while scaling highly
• Coordinate with internal company stakeholders to design market winning products
• Develop and collect metrics to drive continuous improvement of existing products
• Deliver high-quality, testable features that meet reporting and compliance standards.
• Mentor other engineering teammates to help elevate their experience and knowledge

What We Look For:

• At least 7 years of full-stack software engineering experience
• Experience bringing new ideas and building consensus on the path forward
• Experience with building and serving REST APIs using Go and Java Python or a similar language.
• BS in Accounting, Computer Science or similar degree, or equivalent work experience.

Preferred Knowledge and Skills:

• Prior experience as an accountant or financial analyst.
• Solid understanding of financial operations such as reconciliation, reporting, and compliance.
• Experience in banking or financial institutions is a plus
• Proficient in multiple programming languages (e.g., Python, Java, Go) and experience with database systems like MySQL or PostgreSQL.
• Familiarity with software engineering tools, software development methodology, and release processes.
• Comfortable using observability platforms like Prometheus, or vendor solutions like NewRelic or Datadog to instrument your code for production monitoring and alerting.
• Familiarity with containerized micro-service architecture deployed with Kubernetes on AWS
• Demonstrated history of delivering commercial APIs and web applications

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results - you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

Equal Employment Opportunity: Sezzle Inc. is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. We do not discriminate based on race, color, religion, sex, national origin, age, disability, genetic information, pregnancy, or any other legally protected status. Sezzle recognizes and values the importance of diversity and inclusion in enriching the employment experience of its employees and in supporting our mission.

#Li-remote #Full-time

The salary range for this role is $6,000 - $12,500 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

Compensation:

For this principal development role, with 12+ years of experience, the compensation range is  $6,000 - $12,500 per month. This range acknowledges the extensive expertise, leadership capabilities, and significant contributions expected at this level, offering a competitive salary to reflect the value of advanced skills and experience.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Interview with recruiters (30 min)
• Coding assessment (~1.5 hours)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

About the Role: 

We are seeking a talented and motivated best-in-class Principal Software Engineer. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

As a Principal Software Engineer with Sezzle, you will work with highly-motivated teams to tackle interesting and challenging problems across multiple areas of the organization. Your experience and guidance will help other members of the team level-up their own skills as well. You will spend your time working with AI/ML tooling to identify creative uses to fill existing and emerging gaps in the applications.

In this backend focused role, you will work closely with stakeholders from Product, Support and the business. You’ll also partner with other engineering teams to provide high-quality, scalable, and innovative solutions to internal and customer problems. Your day-to-day responsibilities will include designing, developing, and delivering new features, as well as unblocking and mentoring your teammates. Your work will generally focus on the lower level features and optimizations.

This role has both an internal and external focus, your contributions will make a meaningful difference in the day-to-day lives of your peers at Sezzle, enhancing their ability to support our business and customers, and you will have opportunities to take any feedback and iterate.

What You'll Do:

• Architect, design, and build scalable backend services and APIs primarily in Golang, leveraging AWS, RDS (MySQL/Postgres), and modern distributed patterns.
• Lead Sezzle’s AI enablement efforts, identifying opportunities to apply AI and automation to enhance developer productivity, internal tooling, and customer experiences.
• Partner with teams across the organization to integrate modern AI capabilities - Primarily around tools like Claude Code, Codex, Cursor and enhancing team productivity.
• Drive consistency and scalability across a distributed microservices architecture while maintaining performance and reliability.
• Establish and evolve engineering best practices for observability, security, and CI/CD across teams.
• Mentor engineers and champion a culture of learning, innovation, and operational excellence.
• Collaborate cross-functionally to translate business goals into technical roadmaps and deliver results that matter.

What We Look For:

• 12+ years of professional software engineering experience, including significant backend experience.
• Deployed significant changes to a production application in the past 30 days.
• Strong proficiency in Golang, with experience building and maintaining RESTful APIs.
• Experience with React JS. 
• Expertise with SQL-based RDBMS (MySQL, PostgreSQL) and experience optimizing schema and queries for performance at scale.
• Solid understanding of distributed systems design patterns (e.g., transactional outbox, event-driven architecture, queues).
• Demonstrated ability to bring new ideas forward, influence decisions, and lead complex technical initiatives.
• Bachelor’s degree in Computer Science or equivalent practical experience.

Preferred Knowledge and Skills:

• Proficiency in observability tools (Prometheus, Grafana, Datadog, New Relic).
• Experience with AWS cloud infrastructure, mainly AWS Aurora RDS, both MySQL and Postgres.
• Experience in fintech, payments, BNPL, or consumer lending - familiarity with financial compliance, credit decisioning, or transaction processing systems.
• Experience with CI/CD pipelines and containerized microservices (Docker, Kubernetes).
• Working knowledge of TypeScript, React, or React Native.
• Familiarity with AI/ML tooling (e.g., OpenAI API, LangChain, Hugging Face, or custom LLM integrations).
• Track record of shipping commercial APIs and data-driven applications in high-growth environments.
• Proven leadership in guiding technical direction, improving system reliability, and scaling engineering organizations.

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results - you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer and AI-driven, focus on automated end-to-end, integration, and unit tests
• Open Source: Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire.

#Li-remote #full-time

The salary range for this role is 3,500 - $6,000 per month (Gross in USD)

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role: 

We are seeking a talented and motivated Mobile Engineer who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

Compensation

The compensation range for the role is as follows:

• 3,500 - $6,000 per month (Gross in USD)

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

What You'll Do:

• Help own and build out new features within our cross-platform TypeScript React Native app, and Golang backend APIs.
• Manage our releases, using tools like cohorting, feature flags, and app-store infrastructure to ensure a safe rollout to our millions of active users.
• Maintain a strong working relationship with product, design, and the business to ensure stakeholder needs are being evaluated and met.
• Work with the team to continuously build clean, scalable, robust, and testable code.
• Develop a deep working knowledge of your application, data domain, and KPIs.

What We Look For:

• 3+ years of professional mobile development experience, with at least 2+ years in React Native or similar technology such as Flutter.
• Experience working with native code on iOS (Swift/ObjC) and Native Android (Kotlin/Java).
• Experience developing and delivering a mobile application to Apple and Google’s mobile app stores.
• Deep understanding of React Native architecture, hooks, context, navigation patterns, and performance optimization.
• Strong familiarity with unit testing, integration testing, and E2E testing (Jest, React Native Testing Library, Detox, Appium, etc.).
• Ability to lead features end-to-end — from requirements, design, implementation, deployment, monitoring, and improvement.
• Experience mentoring junior or mid-level engineers.
• Capable of performing high-quality code reviews with focus on maintainability, clarity, and best practices.
• Drives technical decisions, proposes improvements, and elevates code quality across the team.
• Works well with product managers, designers, backend teams, and QA.
• Bachelor's degree in computer science
• Knowledge of mobile CI/CD pipelines (Fastlane, Bitrise, GitHub Actions, etc.).

Preferred Knowledge and Skills:

• Knowledgeable in writing automated tests for applications (unit, integration, end-to-end), and implementing them in a CI environment.
• Ability to solve problems with backend-focused languages like Go, Python, Java or similar.
• Familiarity with typical microservice architecture composed of HTTP APIs.
• Experience working with native code on iOS, Android.

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

#Li-remote #Full-time

The salary range for this role is $2,200 - $9,500 per month (Gross in USD)

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

About the Role:

We are seeking a talented and motivated  Mobile Engineer who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement.

As a Software Engineer focused on our mobile app, you will be responsible for solving challenges in our highest-traffic applications, with your work having a direct impact on our customers and product. Day-to-day, you’ll partner with your team to build out features and products in our React Native-based mobile app. In this role, you’ll also provide support for our mobile app as a platform, working closely with engineers from multiple teams to support larger product releases. As your skills grow so will the size and scope of the projects which you’ll be involved in. Sezzle has a strong culture for promotion with defined paths through Engineering that matches all levels. You’ll be working as part of a full-stack Engineering team which has varied disciplines.

Compensation:

Sezzle is a U.S. based company listed on NASDAQ. Salary ranges are:

• Senior: $4,700 - $9,500 USD per month
• Mid: $3,500 - $6,000 USD per month
• Junior: $2,200 - $3,500 USD per month

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

What You'll Do:

• Work within our cross-platform TypeScript React Native app to build and maintain new innovative product features.
• Actively learn new areas of the product, and collaborate with owners for different product features to gain insight and offer constructive suggestions for improvements
• Be an active participant in design/architecture discussions sharing your ideas while building the next generation of features for the Sezzle platform
• Hands-on with our codebase and a contributor to code reviews
• Work with the team to continuously build clean, scalable, robust, and testable code
• Assist in planning, estimations, and completion for projects brought up by the team stakeholders

What We Look For:

• Experience solving technical problems as part of a team
• Bachelor's in computer science (preferred) or equivalent related experience
• Familiarity with modern Frontend Development, Javascript or Typescript, with React Native or React (web) experience strongly preferred

Preferred Knowledge and Skills:

• Experience developing and delivering a mobile application to a mobile app store (App Store or Google Play Store)
• Knowledgeable in writing automated tests for applications (unit, integration, end-to-end)
• Familiar with the basic principles and design of React Native Apps, and RESTful APIs
• Close familiarity with software engineering tools, software development methodology, and release processes

About You:

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results - you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome:

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators. We believe in surrounding ourselves with only the best and the brightest individuals. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire.

#Li-remote #Full-time

The salary range for this role is $2,800 - $6,000 per month (Gross in USD) 

About Sezzle:

With a mission to financially empower the next generation, Sezzle is revolutionizing the shopping experience beyond payments, blending cutting-edge tech with seamless, interest-free installment plans that make shopping smarter and more accessible. We’re not just transforming payments; we’re redefining how people discover, interact with, and purchase the things they love while driving real impact on merchant sales through increased conversions and higher order values. As we continue to shape the future of fintech and retail, we’re building an innovative, dynamic team passionate about creating more than just a transaction but a truly unique shopping journey. If you’re excited about pushing boundaries in tech and delivering a game-changing experience for consumers and merchants alike, come join us at Sezzle and help create the future of shopping!

Compensation:

For this mid-level development role, with 3-7 years of experience, the compensation range is $2,800 - $6,000 USD per month. This range is designed to reflect the skills, experience, and value brought to the team, ensuring competitive and fair pay within the industry.

Interview Process

We believe transparency is important at Sezzle. Regularly providing feedback while setting expectations is part of our culture starting with the interview process. Advancement through each step is not guaranteed.

• Application submitted (you are here)
• Wonderlic test (30-40 min)
• Coding assessment (~1.5 hours)
• Interview with recruiters (30 min)
• Interview with engineers (1 hour)
• Interview with engineering leadership (30-45 min)
• Offer!

About the Role: 

We are seeking a talented and motivated Software Engineer II who is best in class with a high IQ plus a high EQ. This role presents an exciting opportunity to thrive in a dynamic, fast-paced environment within a rapidly growing team, with abundant prospects for career advancement. This role sits within our Marketing & Mobile Engineering organization. You will work across our marketing technology stack and mobile surfaces, building systems that power lifecycle messaging, attribution, content delivery, and in-app experiences for millions of users. The work directly influences Sezzle’s core growth metrics — subscriber acquisition, engagement, and retention. You will work closely with other engineers across multiple teams to provide high-quality, scalable, and innovative products. Your day-to-day responsibilities will include partnering with other engineers to design, develop, and deliver new features. As your skills grow so will the size and scope of the projects which you’ll be involved in. Sezzle has a strong culture for promotion with defined paths through Engineering that matches all levels. You’ll be working as part of a full-stack Engineering team which has varied disciplines.

What You'll Do: 

• Build and maintain features across our marketing technology platform and mobile applications, actively learning new areas of the product
• Develop and extend integrations with marketing and analytics platforms (e.g., lifecycle automation tools, attribution systems, content management platforms) 
• Contribute to backend services, APIs, and data pipelines that power campaign targeting, user segmentation, and messaging delivery 
• Collaborate with Marketing, Product, and Analytics stakeholders to translate business requirements into engineering solutions
• Be an active participant in design and architecture discussions, sharing your ideas while building the next generation of features for the Sezzle platform
• Hands-on with our codebase and a contributor to code reviews
• Mentor other engineers who are starting along their career path 
• Work with the team to continuously build and deploy scalable solutions
• Assist in planning, estimations, and completion for projects brought up by team stakeholders 
• Leverage AI-assisted development tools to accelerate delivery and improve code quality

What We Look For: 

• Experience solving technical problems as part of a team
• Bachelor's in computer science (required)
• Familiarity with modern Frontend Development, with React experience preferred
• Ability to solve problems with backend-focused languages like Go or similar compiled statically typed language
• Intermediate understanding of relational databases like MySQL

Preferred Knowledge and Skills:

The following are valued but not required, we encourage candidates to apply even if they don’t check every box.

We’re looking for strong engineers who are eager to learn and grow into these areas:

• Marketing technology platforms: Experience or exposure to tools such as Braze, AppsFlyer, Contentful, or comparable lifecycle messaging, mobile attribution, and headless CMS platforms
• Mobile development: Familiarity with React Native, native iOS/Android development, or mobile SDK integration
• AI tooling & agentic coding: Hands-on experience using AI-assisted development tools (e.g., Claude Code, GitHub Copilot, Cursor, or similar) to accelerate engineering workflows, and openness to incorporating agentic coding patterns into daily work
• Knowledgeable in writing automated tests for applications (unit, integration, endto-end)
• Familiar with the basic principles and design of RESTful APIs 
• Basic knowledge of a Microservice Architecture
• Close familiarity with software engineering tools, software development methodology, and release processes
• Experience working with event-driven architectures, message queues, or workflow orchestration tools
• Comfort working across the full stack — from backend services and data pipelines to frontend UI and mobile surfaces

About You: 

• You have relentlessly high standards - many people may think your standards are unreasonably high. You are continually raising the bar and driving those around you to deliver great results. You make sure that defects do not get sent down the line and that problems are fixed so they stay fixed.
• You’re not bound by convention - your success—and much of the fun—lies in developing new ways to do things
• You need action - speed matters in business. Many decisions and actions are reversible and do not need extensive study. We value calculated risk-taking.
• You earn trust - you listen attentively, speak candidly, and treat others respectfully.
• You have backbone; disagree, then commit - you can respectfully challenge decisions when you disagree, even when doing so is uncomfortable or exhausting. You have conviction and are tenacious. You do not compromise for the sake of social cohesion. Once a decision is determined, you commit wholly.
• You deliver results - you focus on the key inputs and deliver them with the right quality and in a timely fashion. Despite setbacks, you rise to the occasion and never settle.

Sezzle’s Technology Stack:

• Languages: Golang, Typescript, Python
• Frontend: Typescript - React and React Native
• Backend: Golang
• Database: MySQL, Postgres, Elasticsearch
• DevOps & Cloud: AWS, Kubernetes
• Version Control: Git
• CI/CD: Gitlab
• Marketing & Analytics: Braze, AppsFlyer, Contentful, Redshift, Redash
• Testing: Developer-driven, focus on automated unit, integration, and end-to-end tests
• Sezzle is focused on using open source, and we build what we can before buying!

What Makes Working at Sezzle Awesome? 

At Sezzle, we are more than just brilliant engineers, passionate data enthusiasts, out-of-the-box thinkers, and determined innovators; we are skilled musicians, yogis, cyclists, chefs, golfers, dog-lovers, and rock-climbers. We believe in surrounding ourselves with not only the best and the brightest individuals, but those that are unique and purpose-driven in all that they do. Our culture is not defined by a certain set of perks designed to give the illusion of the traditional startup culture, but rather, it is the visible example living in every employee that we hire. 

#Li-remote 

#Full-time

This is a remote role and can be performed anywhere in Brazil.

The Role

We are looking for a Research Engineer to help deliver frontier-quality datasets, RL environments, and evaluations that improve state-of-the-art models for leading AI labs and enterprise clients.

This is a hands-on, research-facing technical leadership role. You will work directly with customer researchers/engineers to translate their model and post-training goals into concrete data and environment specifications, and drive the production of data that meets extremely high standards for correctness, realism, diversity, difficulty, and measurable model lift.

This role is designed for candidates with roughly 4 to 5 years of experience building and improving deep learning systems, especially where strong results depend on data quality, data curation, denoising, synthetic data generation, and rigorous evaluation. You’ll operate in one or more of the following capability areas:

• Coding and software engineering agents (repositories, unit tests, debugging, tool use, code reviews, long-horizon workflows)
• RL environments and verifier-based training (tasks, rewards/verifiers, trajectories, evaluation harnesses)
• Multimodal data and reasoning (text + images + documents + tables/charts; optional audio/video)
• STEM reasoning (math, physics, chemistry, bio, engineering – solution verification and error analysis)
• Modern embodied AI / VLM-driven agents (vision-language(-action) models, embodied task suites, tool/sensor/action abstractions, long-horizon interaction data)

What You’ll Do

1) Own data and environment quality from an AI researcher perspective

• Translate ambiguous research goals into clear data requirements: target skills, failure modes, difficulty calibration, coverage, and success metrics.
• Define what “good” looks like by creating detailed rubrics, counterexamples, and boundary cases (what to include vs. exclude).
• Perform deep, detail-oriented audits of produced data: spot subtle errors, reward hacking opportunities, leakage, ambiguity, inconsistent assumptions, and distribution shifts.
• Drive iterative improvements using evidence: error taxonomies, slice-based quality metrics, and model-behavior-informed refinements.

2) Design and build datasets and RL environments for your capability area(s)

• Contribute to or lead the design of:
• Task suites (single-step and long-horizon workflows)
• Ground-truth signals (verifiers, unit tests, structured checks, reward functions, automatic validators)
• Environment interfaces (APIs, tool schemas, state abstractions, database schemas, simulator-like dynamics)
• Depending on your mapped capability area(s), you may focus on:
• Coding / SWE agents: data reflecting real development work (codebase navigation, bug localization, patching, tests, code reviews, CI-like constraints, refactors, security fixes).
• Multimodality: tasks that test true multimodal reasoning (chart reading, document QA, UI understanding, diagram-based STEM reasoning, OCR-aware tasks).
• STEM: tasks with verifiable solutions (symbolic checks, reference solvers, numerical validation, step consistency, unit sanity).
• Modern embodied AI / VLM-driven agents: interaction data and environments for vision-language(-action) models (long-horizon tasks, instruction following grounded in visual context, robust action selection, safety/constraint adherence, adversarial state coverage).

3) Build robust validation, denoising, and synthetic data systems

• Implement automated validation and filtering to achieve frontier-grade signal-to-noise:
• Deduplication, decontamination, leakage checks
• Consistency checks (format, schema, invariants)
• Difficulty and diversity controls (coverage, novelty, long-tail)
• Develop synthetic data generation and augmentation pipelines where appropriate:
• Programmatic task generators
• Controlled perturbations to create hard negatives
• Scenario templating with diversity constraints
• Simulator-/tool-driven rollouts for trajectory data
• Create documentation and data cards: dataset intent, known limitations, recommended use, and evaluation linkage.

4) Use evaluations and training runs to prove impact

• Design and run evals that reflect the customer’s intended usage.
• Produce analysis that connects data to outcomes:
• Pre/post comparisons on targeted capability slices
• Error breakdowns and “why the model failed” narratives
• Ablations to identify which data attributes drive lift
• When needed, run in-house fine-tuning or RL-style experiments (or partner with research) to demonstrate that the data/environment improves model behavior in measurable ways.

5) Collaborate effectively with large production teams without being ops-heavy

• Work with cross-functional teams (engineers, researchers, QAs, domain SMEs, and large-scale data production groups) by providing:
• Clear specs, examples, and edge cases
• Fast feedback loops based on audits and quantitative signals
• Structured review processes focused on quality, not throughput alone
• You are expected to be highly engaged in reviewing and improving outputs from large annotation/creation efforts, but not primarily responsible for hiring, staffing, or people operations.

Who We’re Looking For

• 4–5 years of experience building or improving deep learning systems where data quality mattered materially (training, post-training, evals, or agentic systems).
• Strong intuition for the “data ingredients” that drive model improvements: what to collect, what to filter, what to synthesize, and how to measure.
• Ability to communicate clearly with researchers and engineers: turning research objectives into concrete specs, and turning messy outputs into actionable insights.
• Demonstrated ability to be extremely detail-oriented in diagnosing subtle data quality issues and failure modes.
• Solid programming ability with a bias for shipping:
• Python proficiency required
• Comfort with SQL/structured data workflows strongly preferred
• For coding-focused work: proficiency in one or more major languages (e.g., C++, Java, Go, Rust, JS/TS) is a plus
• Comfort designing quality systems:
• Rubrics, validation scripts, gold sets, sampling strategies
• Statistical checks and slice-based evaluation
• Human-in-the-loop review loops grounded in measurable criteria

Strong pluses

• RL or post-training experience (any of: RLHF/RLAIF, verifier training, reward modeling, RL fine-tuning, environment design).
• Experience with agentic evaluation (tool use, multi-step workflows, long-horizon tasks, trajectory analysis).
• Multimodal expertise (document understanding, charts, diagrams, OCR, UI/vision grounding; audio/video optional).
• STEM depth (math/physics/engineering) with an eye for verifiability and rigorous correctness.
• Modern embodied AI / VLM-driven agent experience (vision-language(-action) models, interaction datasets, embodied evals, long-horizon grounding, tool/sensor/action interfaces).
• Systems thinking: ability to “simulate” an application’s API/data schema and design tasks that realistically reflect real-world constraints and workflows.

Why Turing

• Work directly with the world’s leading AI labs and enterprises at the cutting edge of post-training and RL environment design.
• Real impact (path to AGI): your datasets and environments will directly influence the trajectory toward Artificial General Intelligence and, ultimately, Superintelligence.
• Real Impact (GDP): the systems you help build and evaluate target high-value workflows across industries, where even incremental improvements translate to significant productivity gains.
• Talent-dense team, where you'll find high autonomy, rapid iteration, and an exceptional learning curve.

The Community You Will Join: 

The Quality Engineering team helps Airbnb build high-quality software efficiently. We enable Airbnb engineers to build highly testable systems by building and using tools leveraging AI. We own and continuously improve product test cases, automation coverage, test automation tools, environments, and frameworks. We navigate Airbnb’s massive codebase, identifying weak spots, and help design and implement testable fault-tolerant systems.  

The Difference You Will Make:

• Be a leader in Airbnb, leveraging AI to redefine and accelerate Quality Engineering
• As a Senior Automation Engineer, you will help us meet this challenge by building and maintaining automation coverage for features and releases. You will work directly with the product engineering team to develop and maintain our test tools, write and test product code, participate in design reviews to architect testable systems, and guide designs and code to enhance modularity and testability.
• You are eager to understand complex systems top to bottom and thrive working across technologies and codebases. In addition, you excel at working through ambiguity, concept validation, and implementing best-in-class solutions.
• As a global company, our mission is to develop and maintain the necessary quality engineering processes that scale to meet the needs of both our external customers and internal teams. We strive to ensure that our product and support workflows deliver a seamless experience for guests, hosts, and support agents.

A Typical Day: 

• Leverage AI and tooling to lead the implementation of a test automation strategy, covering the entire testing pyramid (unit, service, integration, and end-to-end testing) to verify feature functionality for customer use cases.
• Lead building, maintaining, and effective utilization of automated tests, collaborating closely with engineering teams to ensure robust test coverage for features and releases, and actively participating in the continuous improvement of testing processes.
• Contribute to improving existing automation frameworks to support new functionalities and optimize quality and efficiency.
• Collaborate with CI/CD team to integrate automated testing into CI/CD pipelines, ensuring thorough test coverage at every stage of development.
• Demonstrate excellent troubleshooting abilities, isolate issues, and verify bug fixes. Debug issues found during testing and after release.
• Be a player of our high-performance team to ensure code quality, commitment to craft and operational excellence
• Work closely with cross-functional teams, including product management, development, and other QE teams, in a fast-paced environment with short release cycles.

Your Expertise:

• 5+ years of industry experience in software testing and automation 
• Demonstrable knowledge in at least one programming language (e.g., Typescript, Javascript) and strong scripting skills
• Strong knowledge of test automation methodologies, tools, and frameworks
• Strong hands-on experience with web automation frameworks (e.g., Playwright, Cypress)
• Experience integrating automated tests into CI/CD pipelines (e.g., Buildkite, Spinnaker, Jenkins) and version control systems (Git)
• Excellent communication skills towards facilitating interactions with cross-functional teams
• Expertise developing solutions to ambiguous problems, and integrations across multiple teams with significant impact
• Bachelor’s degree in computer science/engineering or equivalent

Our Commitment To Inclusion & Belonging:

Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply.

The Community You Will Join:
The Quality Platform team is at the heart of Airbnb’s mission to provide a seamless, high-quality experience for millions of hosts and guests. We don’t just find bugs — we build the infrastructure that prevents them. Our team sits at the intersection of Mobile Infrastructure, Developer Experience, and Applied AI. We empower thousands of engineers across Airbnb to ship with confidence by building high-scale platforms, AI-driven automation, and fault-tolerant systems. You will join a group of high-impact engineers who value craft, operational excellence, and the challenge of navigating one of the world’s most complex mobile codebases.

The Difference You Will Make:
As a Senior Android Software Engineer, you will play a key role in evolving our Quality Platform. You will bridge the gap between product engineering and infrastructure, ensuring that our Android codebase remains highly testable and resilient as it scales.

In this role, you will:

• Build AI-Native Tooling: Move beyond traditional automation by implementing AI-driven agents that optimize our CI/CD pipelines and provide intelligent feedback to developers.
• Enhance Developer Velocity: Identify and resolve systemic bottlenecks in the development lifecycle, allowing teams to move faster without compromising quality.
• Advocate for Quality by Design: Work directly with product teams to guide architectural decisions, ensuring that new features are modular and testable from the first line of code.
• Ship High-Scale Infrastructure: Own the development and maintenance of frameworks used by hundreds of engineers across Airbnb, ensuring they are performant, reliable, and easy to use.

A Typical Day:

• Hands-on Development: Write high-quality, performant Kotlin code to extend testing frameworks and build AI-powered developer tools, leveraging LLMs to accelerate development workflows
• Technical Ownership: Take ownership of key components of our Automated Quality Platform, ensuring operational excellence and high availability (24x7) of our testing infrastructure.
• Design & Review: Participate in deep-dive design reviews for new Android features, providing expert guidance on modularity and testability patterns.
• Applied AI: Implement LLM-based solutions for smart test orchestration, test case generation, and autonomous test discovery to reduce CI feedback loops.
• Cross-Functional Collaboration: Partner with Product and Mobile Infrastructure teams to align platform capabilities with the needs of the broader engineering org.
• Mentorship: Review code and provide technical guidance to peers, fostering a culture of commitment to craft and engineering rigor.

Your Expertise:

• Experience: 5+ years of professional Android development experience (or 2+ years with a PhD) in a fast-paced, high-growth tech environment.
• Technical Mastery: Strong proficiency in Kotlin and the Android SDK. You have a solid understanding of modern Android architecture and the Gradle build lifecycle.
• Infrastructure Experience: Demonstrated expertise in building or maintaining test automation frameworks (e.g., Espresso, Compose Test) at scale.
• CI/CD & Tools: Familiarity with CI/CD orchestration and a passion for building tools that improve the developer experience.
• AI Curiosity: A strong interest or hands-on experience in leveraging AI/LLMs to solve engineering productivity or quality challenges.
• Problem Solving: Proven ability to navigate complex, ambiguous codebases and implement best-in-class solutions.
• Communication: Excellent communication skills with the ability to facilitate technical discussions across cross-functional teams.

Our Commitment To Inclusion & Belonging:

Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply.

We strive to also provide a disability inclusive application and interview process. If you are a candidate with a disability and require reasonable accommodation in order to submit an application, please contact us at: reasonableaccommodations@airbnb.com. Please include your full name, the role you’re applying for and the accommodation necessary to assist you with the recruiting process. 

We ask that you only reach out to us if you are a candidate whose disability prevents you from being able to complete our online application.

The Community You Will Join:

The Quality Engineering team helps Airbnb build high-quality software efficiently. We enable Airbnb engineers to build highly testable systems by building and using tools leveraging AI. We own and continuously improve product test cases, automation coverage, test automation tools, environments, frameworks. We navigate Airbnb’s massive codebase identifying weak spots, and help design and implement testable fault-tolerant systems. 

The Difference You Will Make:

• Be a leader in Airbnb leveraging AI to redefine and accelerate Quality Engineering
• As a Senior Automation Engineer, you will help us meet this challenge by building and maintaining automation coverage for features and releases. You will work directly with the product engineering team to develop and maintain our test tools, write and test product code, participate in design reviews to architect testable systems, and guide designs and code to enhance modularity and testability.
• You are eager to understand complex systems top to bottom and thrive working across technologies and codebases. In addition, you excel at working through ambiguity, concept validation, and implementing best-in-class solutions.
• As a global company, our mission is to develop and maintain the necessary quality engineering processes that scale to meet the needs of both our external customers and internal teams. We strive to ensure that our product and support workflows deliver a seamless experience for guests, hosts, and support agents.

A Typical Day: 

• Leverage AI and tooling to lead the implementation of a test automation strategy, covering the entire testing pyramid (unit, service, integration, and end-to-end testing) to verify feature functionality for customer use cases.
• Lead building, maintaining, and effective utilization of automated tests, collaborating closely with engineering teams to ensure robust test coverage for features and releases, and actively participating in the continuous improvement of testing processes.
• Contribute to improving existing automation frameworks to support new functionalities and optimize quality and efficiency.
• Collaborate with CI/CD team to integrate automated testing into CI/CD pipelines, ensuring thorough test coverage at every stage of development.
• Demonstrate excellent troubleshooting abilities, isolate issues, and verify bug fixes. Debug issues found during testing and after release.
• Be a player of our high-performance team to ensure code quality, commitment to craft and operational excellence
• Work closely with cross-functional teams, including product management, development, and other QE teams, in a fast-paced environment with short release cycles.

Your Expertise:

• 5+ years of industry experience in software testing and automation 
• Demonstrable knowledge in at least one programming language (e.g., Kotlin, Java) and strong scripting skills
• Strong knowledge of test automation methodologies, tools, and frameworks
• Strong hands-on experience with automation frameworks (e.g., Espresso)
• Experience integrating automated tests into CI/CD pipelines (e.g., Buildkite, Spinnaker, Jenkins) and version control systems (Git)
• Excellent communication skills towards facilitating interactions with cross-functional teams
• Expertise developing solutions to ambiguous problems, and integrations across multiple teams with significant impact
• Bachelor’s degree in computer science/engineering or equivalent
• Fluency in English (reading, writing, and speaking) is essential.

Our Commitment To Inclusion & Belonging:

Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply.

We strive to also provide a disability inclusive application and interview process. If you are a candidate with a disability and require reasonable accommodation in order to submit an application, please contact us at: reasonableaccommodations@airbnb.com. Please include your full name, the role you’re applying for and the accommodation necessary to assist you with the recruiting process. 

We ask that you only reach out to us if you are a candidate whose disability prevents you from being able to complete our online application.

About Nubank

Nu is the world's largest digital banking platform outside of Asia, serving over 127 million customers across Brazil, Mexico, and Colombia. Guided by its mission to fight complexity and empower people, Nu caters to customers' complete financial journey — promoting financial access with responsible lending and transparency. Recognised by Time 100 Companies, Fast Company's Most Innovative Companies, and Forbes World's Best Banks, Nu is now entering its next growth cycle: accelerating internationalisation outside Latin America and expanding into new verticals beyond financial services.

About the Team

The People Analytics Technology Operations (PATO) team is redefining what People & Culture infrastructure looks like for a company operating at global scale with an AI-first mandate. We don't run HR software — we build the systems that make HR itself obsolete in its traditional form. Our work touches every Nubanker, every country, every moment of the employee lifecycle. We are the internal frontier lab for agentic people systems.

About the Role

Here is the core question this role exists to answer: if you were designing People & Culture infrastructure from scratch today — knowing that AI agents will run most operations, humans will audit rather than execute, and the channels and surfaces workers interact with don't fully exist yet — what would you build?

This isn't a rhetorical question. It's the actual brief.

The SaaS era of HR technology is being disrupted faster than most incumbents can adapt. Workday, SAP, ServiceNow — products built for a world of human workflows and form-based interfaces — are structurally ill-equipped for an agent-native operating model. The real competitive moat in this next era won't be features. It will be the depth of integration within a specific domain, and the quality of the data and reasoning layer that sits beneath it. We have the rare opportunity to build that solution — purpose-built for the People & Culture domain — inside one of the most technically ambitious companies in the world.

As Global People Data & Tech Director, you will lead the effort to design and build this from the ground up. You will define what the agentic HR stack looks like: the data models that make agents actually useful, the orchestration layer that lets them act with minimal human friction, the audit surfaces that let people stay in control without becoming bottlenecks, and the foundational platform that scales to 40+ markets without scaling the team that builds it. Agentic development practices aren't a side methodology here — they are how this organisation will operate. You build with agents, you build for agents, and your team stays lean precisely because of it.

This role isn't for someone who has deep experience with HR software. It's for someone who looks at HR software and sees an industry ripe to be rebuilt. You are a product and infrastructure thinker who happens to care deeply about the employee experience — and who has the technical depth and organisational leadership to translate that vision into production systems used by hundreds of thousands of people.

Key Responsibilities

Define the Agent-Native HR Stack

• Design the architecture for a People & Culture platform where agents are first-class citizens: capable of executing hiring, onboarding, payroll, compliance, and performance workflows with minimal human intervention.
• Define the human-in-the-loop model — which decisions require human review, through what interfaces, with what level of latency — so that oversight is meaningful rather than ceremonial.
• Identify and kill the workflows that should no longer exist at all.

Build the Data Foundation

• Architect the People data layer that will serve as the substrate for agent reasoning, predictive analytics, and LLM-powered insight generation for the next decade.
• Ensure the data model is jurisdiction-aware from day one — built to accommodate the legal, cultural, and operational variance of 40+ markets without requiring structural rework per country.
• Drive the transition from fragmented HR data silos to a unified, real-time, auditable data layer that agents and analysts can trust equally.

Build With and For Agents

• Apply agentic development practices to your own team's engineering process — using agents to write, test, review, and deploy code so that headcount does not scale linearly with product scope.
• Lead the development of real-time AI-powered employee experiences: intelligent copilots, proactive guidance systems, and autonomous support channels that resolve needs before they become tickets.
• Advance Nubank's application of large language models to unstructured People data — feedback, communications, performance narratives — turning qualitative signal into structured organisational insight.

Own the Platform Vision

• Define the comprehensive HR platform roadmap — what we build, what we integrate, and what we deliberately do not own — with a bias toward deep integration over broad coverage.
• Ensure the platform is designed for global scale from the start: multi-currency, multi-jurisdiction, multi-language, and operable across legal entities without per-country engineering investment.
• Bridge strategic vision with hands-on execution, staying close enough to the codebase and architecture to make credible decisions and earn the trust of your engineering team.

Lead the Organisation

• Build and lead a high-performing, deliberately lean team that punches well above its headcount because it builds and operates with agents.
• Develop senior technical leaders who can own domains end-to-end, reducing coordination overhead and enabling faster iteration.
• Foster a culture of intellectual honesty — one that questions inherited assumptions about how HR technology should work, and is willing to discard anything that doesn't hold up.

Qualifications & Skills

What We're Looking For

We are not looking for someone who has spent their career in HR technology. We are looking for someone who has built consequential software systems, who thinks seriously about agents and automation, and who is intellectually excited by the opportunity to apply that background to a domain that is fundamentally underbuilt.

Required

• 10+ years in software engineering and technology leadership, with demonstrated experience owning large-scale production systems from architecture through operation.
• Deep fluency in data architecture and data modelling — the ability to design canonical data structures that remain coherent as business complexity grows across jurisdictions and entity types.
• Hands-on experience building with or designing for agentic systems: familiarity with LLM-based reasoning, tool use, multi-agent orchestration, and the failure modes that come with autonomous execution.
• Experience leading platform or infrastructure products — systems used by other teams and applications, not just end users — with the taste and discipline that entails.
• Proven ability to scale impact without scaling headcount: through leverage, tooling, great architecture, and a culture that defaults to automation before process.
• Strong engineering management skills, including the ability to hire, develop, and retain senior technical talent and engineering leaders.

Valued

• Experience building products that operate across multiple legal jurisdictions — especially products where regulatory variance is a first-class design constraint, not an afterthought.
• Background in developer platforms, internal tooling, or B2B SaaS — contexts where you have thought carefully about API design, data contracts, and integration depth.
• Familiarity with the People & Culture domain — not as a practitioner, but as a product builder who has spent time understanding what HR teams actually do, where the friction lives, and what automation can and cannot replace.
• Experience operating within a high-growth technology company where ambiguity is the norm and the product surface changes faster than any roadmap.

Core Leadership Skills

• Business Acumen: Drives strategic alignment by reading market dynamics, spotting where incumbents are structurally vulnerable, and translating that into build-vs-integrate decisions with long-term leverage.
• Communication: Moves between technical depth and executive narrative fluently — able to defend architectural choices with an engineer and explain the same decision to a board.
• Agile Adaptability: Leads in conditions of genuine uncertainty, treating early product iterations as learning instruments and calibrating direction based on evidence rather than original conviction.

Role Details

Location:  São Paulo, Mexico City, Bogotá, or US (Palo Alto, Miami, or Virginia) | Location-Specific Disclosures

Reports To: Suzana Kubric, CHRO at Nubank

About Us

Nu is one of the largest digital financial platforms in the world, with more than 122 million customers across Brazil, Mexico, and Colombia. Guided by our mission to fight complexity and empower people, we are redefining financial services in Latin America and this is still just the beginning of the purple future we're building.

Listed on the New York Stock Exchange (NYSE: NU), we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human.

Our impact has been recognized by global rankings such as Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. Visit our institutional page https://international.nubank.com.br/careers/  

About Nubank’s Mobile Platform and App Core

The Mobile Platform’s mission aligns with Nubank’s commitment to delivering the best experience for our customers by ensuring a high-performing, stable, and seamless app.
Within Mobile Platform, App Core focuses on providing user-friendly, scalable, high-performing, and cost-efficient app infrastructure components and mobile tools that enable Nubank engineers to quickly and safely test, deploy, monitor, analyze, and improve app flows and features.

App Core is at the heart of the Nubank app’s foundation, powering app performance, infrastructure scalability, and the removal of legacy dependencies to allow our application to grow from millions to potentially billions of fanatic customers.

The Opportunity

This role will involve working across a variety of technologies, including Native, Flutter, and related frameworks. We are looking for a Lead Mobile Engineer with solid experience to join the App Core team — a cross-impact engineering team responsible for building and maintaining the core infrastructure of the mobile application, optimizing our performance, and enabling product teams to deliver high-quality mobile experiences.

What We’re Looking For

Must Have:

• Proven experience in senior-level technical mobile development.
• Strong technical background with Flutter and/or native mobile development (Android/iOS).
• Solid understanding of mobile software engineering principles, architectural patterns, and modularization strategies.
• Experience with performance optimization, dependency injection, and migration of core systems.
• Knowledge of mobile observability, monitoring, and debugging tools.
• Strong communication skills in English, with the ability to explain complex concepts to diverse audiences.
• Track record of delivering results in ambiguous, fast-paced environments.

Nice to Have:

• Experience with backend technologies, especially those integrated with mobile applications.
• Familiarity with distributed systems and large-scale app architecture.
• Contributions to internal SDKs, libraries, or mobile design systems.
• Understanding of user authentication, session management, and app state handling.

Why Join Us

• Impact at Scale: Help shape the mobile experience for millions of customers across multiple countries, with the goal of reaching billions.
• Technical Leadership: Influence the architecture and foundational technologies that all Nubank engineers rely on.
• Innovation-Driven Culture: Work in a dynamic, collaborative environment that values experimentation, continuous improvement, and engineering excellence.
• Career Growth: Develop as a strategic engineering, working on complex technical and organizational challenges.

Our Benefits

• Chance of earning equity at Nubank
• Food/ Meal Card (Vale-Refeição and/or Vale Alimentação)
• Public Transportation Commuting Benefit (Vale-Transporte)
• NuCare – Psychological, Financial and Legal Assistance Program
• Life Insurance
• Medical Plan
• Dental Plan
• NuLanguage – Language Course Program
• Nucleo - Our learning platform of courses
• Extended Parental Leave
• Daycare Allowance
• Parental Consultancy
• Work-from-home Allowance
• Gym Partnerships
• 30 days of paid vacation
• Relocation Assistance Package, if applicable

Work Model for this Role

Hybrid 2-3 times/week: Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration. For more details, visit https://building.nubank.com/nu-hybrid-work-model/

Important Information 

Location: Brazil
Job Mode: Full-time 
Work Mode: Work from home

Job Summary

We are seeking a highly experienced Software Development Engineer in Test (19742) with a strong background in data quality, analytics testing, and data engineering validation within the insurance industry. This role focuses on ensuring high-quality data across modern data platforms by defining, implementing, and maintaining robust testing strategies across the full data lifecycle—from raw ingestion to curated analytical layers. The ideal candidate demonstrates technical leadership, continuous improvement, and strong collaboration with engineering and business stakeholders.

Responsibilities and Duties

• Develop and maintain end-to-end dbt testing frameworks, including mocked and expected datasets across bronze, silver, and gold layers;
• Define, implement, and maintain dbt models, unit tests, end-to-end tests, and custom test cases;
• Analyze engineering and analytics requirements to determine appropriate testing scope and strategies;
• Collaborate closely with business stakeholders, Data Engineers (DEs), and Analytics Engineers (AEs) to define testing needs and ensure data quality alignment;
• Gain a deep understanding of the repositories, tools, and workflows, including VSCode, pytest, dbt, Databricks, Git, Docker, and CI/CD processes;
• Investigate failed tests, perform root cause analysis, and support defect resolution;
• Review pull requests to ensure adherence to testing standards and data quality best practices;
• Actively participate in Agile ceremonies, providing quality insights and recommendations;
• Identify opportunities for process optimization, automation, and efficiency improvements while aligning quality efforts to business value;
• Demonstrate leadership by mentoring team members and promoting best practices in Quality Engineering.

Essential Skills

• Experience in Quality Engineering, with a strong focus on data-centric testing;
• Proven experience working within the insurance industry (required);
• Strong understanding of data warehousing concepts, ETL processes, and BI platforms;
• Solid knowledge of testing strategies, the Test Pyramid, and version control systems;
• Proficiency in SQL and scripting languages such as Python;
• Demonstrated ability to drive continuous improvement across technology, processes, and people.

Highly Desirable Skills

• Hands-on experience designing and executing data validation strategies across complex data pipelines;
• Ability to translate business and analytical requirements into effective testing solutions;
• Experience supporting enterprise-scale data platforms with a strong emphasis on data accuracy, reliability, and compliance;
• Comfortable working in fast-paced, Agile environments.

About Encora

Encora is the preferred digital engineering and modernization partner of some of the world’s leading enterprises and digital native companies. With over 9,000 experts in 47+ offices and innovation labs worldwide, Encora’s technology practices include Product Engineering & Development, Cloud Services, Quality Engineering, DevSecOps, Data & Analytics, Digital Experience, Cybersecurity, and AI & LLM Engineering.

At Encora, we hire professionals based solely on their skills and qualifications, and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality.

This role is based in Lisbon, Portugal. We offer relocation support for candidates who are open to moving to Portugal.

About the Job

On our path to becoming the most visited online curated marketplace for special objects, our Engineering team is on a mission to deliver the best experience across our platforms by building best-in-class products for search & discovery, bidding, curation, logistics, payments, and support. 

We're a scale-up with customer-facing challenges dealing with high-scale (75k auctions per week) and high traffic (more than 10 million visitors per month). As a Software Engineer, you’ll support one of our 3 verticals - Demand, Supply, or Fulfilment - improving and delivering product innovations for our platform. 

Working in small, fully autonomous, and highly collaborative Agile teams, you will build scalable, maintainable, and resilient microservices and features. That's why we are looking for bold, curious and open developers! Are you ready to join?

What you will do 

• Build: Design, develop, test, deploy, maintain and improve. You’ll be part of a team that is end-to-end responsible for their own microservices.
• Collaborate: Work closely with product designers, product owners, front, back, and mobile engineers to share new ideas and make our processes even more efficient.
• Growth: Support our great engineering culture, by documenting and advocating for best development practices - constantly improving the quality of our products by fixing bugs and refactoring the code base where necessary.
• Learn: Boost your career by testing new technologies and participating in our Technical Week, a week dedicated to promoting creativity (after 2 product sprints), innovation, and knowledge sharing across domains.

What you’ll bring

As Software Engineer, you already understand the full life cycle of web development and see opportunities in front of you. You're curious, solution-oriented and have a strong customer focus. Our stack is mainly focused around Ruby, however, if you’re passionate about learning new things then prior experience with Ruby is not essential. Next to this:

• At least, 4+ years of experience with customer-facing products in related industries, e.g. e-commerce, fintechs, SaaS
• At least 4+ years with software development, in specific OOP (object-oriented programming)
• Experience designing, implementing, and deploying backend services, with a focus on high availability, low latency, and consistency.
• Good understanding of APIs design
• Familiarity with SQL and relational databases
• Excellent communication in English
• Comfortable raising concerns, sharing new ideas, documenting, and finding opportunities for solution alternatives.

As a passionate engineer, you bring these values to Catawiki:

• You strive to be a great team player and don’t shy away from new challenges.
• You are someone who takes initiative and is ready to jump in and help if needed.
• You possess a "growth mindset" in which you take the initiative to further your personal skill set as a software developer, whether by learning new skills and/or technologies or by seeking new opportunities.

Where you’ll be

This role is based in Lisbon, Portugal. We offer an excellent relocation package for people living outside of Portugal.

When in Portugal, here is what we can offer you

• You'll be part of an enthusiastic, highly motivated team of 850+ Catawikians.
• International and fast-growing organization with over 50 nationalities.
• 22 days of Holiday days + National Holidays
• Health Insurance
• Meal Card per working day on top of salary
• Working-from-home Allowance
• Hybrid way of working between home and office
• Flexible working hours policy
• Holistic Wellbeing Programme including: clinical services, single-session therapy, wellness support and more.
• Tailored Learning & Development program

Your Role:

As a Sales Engineer at Alpaca, you will be the go-to expert for all products and services offered to our partners. Your role is to leverage your technical skills, excellent communication, and creative problem-solving abilities to support the sales process for Alpaca's growing suite of products and services. You will focus on expanding our base of enterprise partners within your assigned territory.

Things you get to do:

• Serve as the product and technical subject matter expert, capable of thoroughly understanding and articulating all aspects of the Alpaca platform to diverse audiences and stakeholders
• Serve as a regional market-specific expert in regulations, compliance, and jurisdictional requirements
• Comfortable working with senior leaders and C-level executives
• Collaborate closely with the Sales and Customer Success teams, providing essential technical advisory and product expertise throughout the client lifecycle.
• Present compelling product and technical use cases to prospective clients, while building trust and confidence in Alpaca's technical capabilities.
• Translate complex business and technical requirements into clear, simple solutions
• Create sales support materials and documentation for new features and products
• Own technical sales engagement end-to-end: discovery calls, solution validation, RFPs, and questionnaires that win deals
• Lead demo strategy and execution, creating technical narratives that convert prospects into customers
• Travel as needed to support sales activities and customer engagements
• Stay updated on internal product development timelines and work closely with the product team to test and roll out new features to partners 

Who you are (must-haves):

• Excited by the prospect of working in a startup environment, the ideal candidate is a self-starter who will take the lead in defining new processes where appropriate 
• 5+ years in a Sales Engineering, Solutions Engineering, Technical consulting, Technical Product Management or Partner Engineering client-facing role, with experience working at API or SaaS-first companies.
• Strong technical background, including hands-on experience working with APIs, WebSockets, Postman, Grafana and JSON
• Superior verbal and written communication skills in English are essential for driving clarity on goals, setting expectations, and effectively collecting feedback from clients
• You must be able to translate complex technical concepts into simple, understandable terms
• Proven ability to manage multiple assignments simultaneously, work independently and drive projects to completion with minimum guidance and close attention to detail 
• Must speak fluent English and either Spanish or Portuguese
  
  

You’ll be a rockstar 🤩, if you have:

• Experience working at a Broker-Dealer or FinTech company
• Closing Enterprise deals alongside AEs
• Securities Industry Essentials (SIE) and or Series 7
• Familiarity with Metabase
• Experience working with Coast (demo software)
• Excited to learn more about the securities industry
• Experience working with FIX eXchange protocol 
• Experience working with OpenAPI, ReadMe and documentation

About Us

Nu is one of the largest digital financial platforms in the world, with more than 122 million customers across Brazil, Mexico, and Colombia. Guided by our mission to fight complexity and empower people, we are redefining financial services in Latin America and this is still just the beginning of the purple future we're building.

Listed on the New York Stock Exchange (NYSE: NU), we combine proprietary technology, data intelligence, and an efficient operating model to deliver financial products that are simple, accessible, and human.

Our impact has been recognized by global rankings such as Time 100 Companies, Fast Company’s Most Innovative Companies, and Forbes World’s Best Bank. Visit our institutional page https://international.nubank.com.br/careers/  

About Nubank’s Mobile Platform and App Core

The Mobile Platform’s mission aligns with Nubank’s commitment to delivering the best experience for our customers by ensuring a high-performing, stable, and seamless app.
Within Mobile Platform, App Core focuses on providing user-friendly, scalable, high-performing, and cost-efficient app infrastructure components and mobile tools that enable Nubank engineers to quickly and safely test, deploy, monitor, analyze, and improve app flows and features.

App Core is at the heart of the Nubank app’s foundation, powering app performance, infrastructure scalability, and the removal of legacy dependencies to allow our application to grow from millions to potentially billions of fanatic customers.

The Opportunity

This role will involve working across a variety of technologies, including Native, Flutter, and related frameworks. We are looking for a Mobile Engineer with solid experience to join the App Core team — a cross-impact engineering team responsible for building and maintaining the core infrastructure of the mobile application, optimizing our performance, and enabling product teams to deliver high-quality mobile experiences.

What We’re Looking For

Must Have:

• Proven experience in senior-level technical mobile development.
• Strong technical background with Flutter and/or native mobile development (Android/iOS).
• Solid understanding of mobile software engineering principles, architectural patterns, and modularization strategies.
• Experience with performance optimization, dependency injection, and migration of core systems.
• Knowledge of mobile observability, monitoring, and debugging tools.
• Strong communication skills in English, with the ability to explain complex concepts to diverse audiences.
• Track record of delivering results in ambiguous, fast-paced environments.

Nice to Have:

• Experience with backend technologies, especially those integrated with mobile applications.
• Familiarity with distributed systems and large-scale app architecture.
• Contributions to internal SDKs, libraries, or mobile design systems.
• Understanding of user authentication, session management, and app state handling.

Why Join Us

• Impact at Scale: Help shape the mobile experience for millions of customers across multiple countries, with the goal of reaching billions.
• Technical Leadership: Influence the architecture and foundational technologies that all Nubank engineers rely on.
• Innovation-Driven Culture: Work in a dynamic, collaborative environment that values experimentation, continuous improvement, and engineering excellence.
• Career Growth: Develop as a strategic engineering, working on complex technical and organizational challenges.

Our Benefits

• Chance of earning equity at Nubank
• Food/ Meal Card (Vale-Refeição and/or Vale Alimentação)
• Public Transportation Commuting Benefit (Vale-Transporte)
• NuCare – Psychological, Financial and Legal Assistance Program
• Life Insurance
• Medical Plan
• Dental Plan
• NuLanguage – Language Course Program
• Nucleo - Our learning platform of courses
• Extended Parental Leave
• Daycare Allowance
• Parental Consultancy
• Work-from-home Allowance
• Gym Partnerships
• 30 days of paid vacation
• Relocation Assistance Package, if applicable

Work Model for this Role

Hybrid 2-3 times/week: Our hybrid work model brings us to the office at least twice a week, on strategic days designed to maximize team connection and collaboration. For more details, visit https://building.nubank.com/nu-hybrid-work-model/

Engineering at Brex

Engineering at Brex is about building systems that scale with speed and intention. Our teams span Software, Data, Security, and IT, and operate with high autonomy and deep collaboration. We tackle hard technical problems, own our outcomes, and push for excellence at every level — from architecture to deployment. It’s an environment where engineering is a craft, and builders become leaders.

What you’ll do

As a Senior Software Engineer, Infrastructure (Release Engineering) at Brex, you will design, build, and operate the core systems that power Brex’s release, observability, and incident management processes. You will partner closely with product, platform, and operations teams to ensure releases are safe, fast, and reliable, and that our infrastructure scales securely as Brex grows.

Where you’ll work

This role will be based in our São Paulo office. We are a hybrid environment that combines the energy and connections of being in the office with the benefits and flexibility of working from home. We currently require a minimum of three coordinated days in the office per week on Monday, Wednesday and Thursday. As a perk, we also have up to four weeks per year of fully remote work!

Responsibilities

• Design, build, and maintain the release infrastructure that powers Brex’s deployment pipelines and incident workflows
• Drive technical strategy and architecture for release and observability systems, making them more scalable, reliable, and secure
• Collaborate with product, engineering, and operations partners to ensure Brex’s releases are safe, predictable, and low-friction
• Identify and deliver improvements to the end-to-end release process (from code merge to production) to reduce risk and cycle time
• Build and evolve tooling for observability and incident response, enabling fast detection, triage, and resolution
• Proactively identify and mitigate risks in our release and infrastructure stack, including performance, reliability, and security concerns
• Define, instrument, and monitor key metrics for release engineering (e.g., deployment frequency, change failure rate, MTTR) and use them to guide improvements
• Partner with other infrastructure and product teams to debug complex production issues and drive long-term fixes
• Contribute to and champion best practices in release engineering, reliability, and operational excellence across the organization
• Mentor other engineers on the team, providing technical guidance and code reviews to elevate the overall quality of our infrastructure
• Stay up-to-date on emerging tools and practices in release engineering, observability, and SRE, and bring relevant ideas into Brex’s stack

Requirements

• 7+ years of professional experience designing, building, and operating backend or infrastructure systems in production
• Strong proficiency in backend programming languages (e.g., Go, Java, Kotlin, or Python) with a focus on reliability and performance
• Hands-on experience with CI/CD and release pipelines (e.g., GitHub Actions, CircleCI, Buildkite, Argo, Spinnaker, Jenkins) including build, test, and deployment automation
• Experience architecting and operating scalable, high-availability distributed systems on cloud platforms (e.g., AWS, GCP, Azure)
• Deep familiarity with containerization and orchestration (e.g., Docker, Kubernetes) and infrastructure-as-code (e.g., Terraform, CloudFormation)
• Experience designing and maintaining observability tooling (metrics, logs, tracing) and integrating it into incident response workflows
• Strong understanding of reliability and SRE practices, including SLIs/SLOs, error budgets, and incident management best practices
• Experience designing and optimizing data storage systems (SQL and/or NoSQL) for operational and observability use cases
• Proven track record of improving release processes (e.g., reducing deployment risk, increasing deployment frequency, automating rollbacks)
• Comfort working cross-functionally with product and other engineering teams to debug complex production issues and ship changes safely
• Strong communication and collaboration skills, including writing clear design docs and driving technical decisions across teams

Brex LLC is a wholly owned subsidiary of Capital One, N.A.

Full Stack Software Development– LAC (Brazil) - 12 months contractor 

Overview:
Working with governments, foundations, and public sector partners to turn complex challenges into buildable solutions and real impact through AI product-driven delivery.

About Delivery Associates
Delivery Associates (DA) is a global social impact consultancy specializing in transforming the public sector. With over a decade of experience and a foundation in Deliverology®, DA guides leaders through every phase of implementation—delivery-oriented strategy formulation, execution, and evaluation. DA partners with governments, philanthropies, and international organizations, employing actionable strategies to achieve sustainable, lasting outcomes. In every one of our services, you will find a throughline back to this focus on helping our partners deliver better results through better implementation.

Job Description
Delivery Associates is building a new kind of team—one that helps partners across government and the social sector move from policy ambition to real, AI-enabled products and services that improve outcomes for people.

We are hiring a Full Stack Software Developer to help build and ship these solutions. This is a hands-on, execution-focused role: turning defined problems and product direction into simple, functional, and reliable applications that can be deployed and used in real-world public sector environments.

In this role, you will work across the stack—from building backend services and APIs to implementing user-facing interfaces—to design systems that support real workflows. This includes connecting data, integrating APIs, structuring and transforming data, and incorporating external tools (including AI services) into usable, end-to-end processes.

You will work closely with an AI Solutions Engineer, a Product Manager, and Delivery teams to translate ideas into working products—often in contexts with fragmented data, tight timelines, and evolving requirements. Success in this role requires the ability to build quickly, keep solutions simple, and deliver working features that can be used and iterated on in real environments.

Core Responsibilities.

This is a contractor role embedded within small, high-performing delivery teams, where product ownership and execution are tightly integrated. In this role, you will:

• Build and ship functional features and applications in short, iterative cycles (typically 2–4 weeks)
• Contribute across the stack—developing user-facing interfaces (e.g., React/Next.js), backend services (e.g., Python/Node.js), and working with data layers (e.g., Supabase/PostGIS)
• Integrate APIs and external services (including AI services where relevant) into end-to-end workflows
• Work with messy, real-world government datasets—cleaning, structuring, and making them usable within applications
• Translate product and technical requirements into working code in collaboration with an AI Solutions Engineer and Product Manager
• Follow established architecture patterns and contribute to clean, maintainable, and well-structured codebases
• Support deployment and iteration of applications in cloud environments
• Test, debug, and improve systems to ensure reliability and usability in real-world contexts
• Contribute to reusable components and shared code where appropriate

Mindset.

We work well with people that are:

• Adaptable: Public sector work is dynamic. Our people are, too.
• Analytical: We identify, dissect, and solve complex problems.
• Accountable: We are a remote team. We work collaboratively but self-sufficiently; oversight is often minimal.
• Driven: Our work is important, so it’s important we do it well.
• Curious: We never stop learning from our clients, colleagues, and partners.

Required Skills/Experience.
 

• 5+ years of professional experience building and shipping production-grade applications
• Strong proficiency in modern programming languages (e.g., JavaScript/TypeScript, Python) and ability to work effectively across the stack
• Solid experience designing and implementing full-stack systems, including frontend interfaces, backend services, and data models
• Experience integrating and working with APIs, including designing clean service interactions and handling external dependencies
• Ability to work with real-world data: querying, transforming, and structuring datasets for use in applications
• Experience building and maintaining reliable systems, including debugging, error handling, and performance considerations
• Ability to translate product and technical requirements into well-structured, maintainable implementations
• Comfort working in fast-paced, iterative environments with evolving requirements and tight timelines
• Sound engineering judgment, with a bias toward simple, reliable, and maintainable solutions
• Professional English and Portuguese required
• Must be based in and have work authorization in Brazil

What Will Set You Apart.

• Experience integrating AI/LLM APIs into real applications (e.g., OpenAI, Claude), including basic prompt design and structured outputs
• Exposure to building data-driven workflows using external or unstructured data
• Familiarity with geospatial data, public sector datasets, or data pipelines in messy environments
• Experience working on products for government, social impact, or operational service delivery contexts
• Comfort contributing to systems that connect multiple services (APIs, databases, third-party tools) into end-to-end workflows
  
  

What We Offer.

• Meaningful work that contributes to solving complex social challenges around the world
• Ongoing learning and growth through mentorship and leadership opportunities
• Opportunity to shape a new model of delivery at the intersection of consulting, product, and AI

Our Values.

These values serve as an anchor, enabling us to stay true to who we are and what we stand for.

• Passion: It is all about impact.
• Excellence: Delivering to the highest standards.
• Humility: Pride without ego.

About Delivery Associates:

We help governments, foundations, and social impact organizations all over the world turn big ideas, campaign promises, and ambitious goals into everyday reality for the people they serve. With over ten years of experience and expert staff guiding our work, Delivery Associates has delivered impact in areas ranging from education reform in the US to microfinance in South America to agricultural reform in Africa and the Middle East. We approach every problem with a strong bias towards implementation, an open mind to possibilities, empathy for governments and residents, and a strong values system. We are always asking ourselves, our partners, and our clients: What would it take to make change happen?

To learn more about Delivery Associates please visit deliveryassociates.com/our-work or contact our talent team at talent@deliveryassociates.com for more information on opportunities to join our team.

#LI-MG1 #LI-REMOTE

Location:  This position may be performed remotely, but requires the flexibility and willingness to travel as needed.

The Opportunity

Praxis Precision Medicines is building a strong pipeline of Software Engineering talent to support the continued evolution of our eDiary and clinical data platforms. Engineers in this role will first contribute to and grow within our eDiary ecosystem—a regulated, patient-facing platform used across our Epilepsy portfolio. Our engineers work across modern web and mobile applications, secure clinical data platforms, cloud infrastructure, distributed system architectures, API design, auditability frameworks, identity and access control systems, and production observability. When you apply to this position, your profile will be considered for current and future Software Engineer openings supporting the eDiary platform and adjacent clinical systems.

Primary Responsibilities

• Design, develop, and maintain reliable, production-grade code across frontend, backend, and data layers, implementing software solutions that meet clinical, operational, and regulatory requirements
• Deploy and operate services in a cloud environment (AWS preferred) and contribute to architecture and design reviews with a focus on reliability, scalability, and security
• Debug and resolve production issues across distributed and asynchronous workflows; diagnose performance bottlenecks; and own incident response, including root cause analysis and durable fixes that prevent recurrence
• Collaborate with QA, Clinical Operations, Clinical Development, Product, and IT stakeholders to translate requirements into validated releases
• Design APIs and data models that preserve audit trails, version history, and system traceability; and improve system observability through structured logging, monitoring, and alerting
• Uphold high standards for data integrity, security, and regulatory compliance across all systems

Qualifications and Key Success Factors

• Bachelor’s degree in Software Engineering or equivalent practical experience
• 3+ years of non-internship professional software development experience, with demonstrated ability to design, build, and operate production software systems end-to-end
• Demonstrated experience using AI-assisted development tools (e.g., code generation, automated testing, debugging copilots) to improve engineering productivity and code quality, with ability to critically evaluate AI-generated outputs for correctness, security, and maintainability
• Strong foundation in software engineering fundamentals: data structures and algorithms, API and interface design, relational data modeling and transactional integrity, and separation of concerns
• Demonstrated ability to debug complex issues across multiple layers (client, API, database, infrastructure) and trace issues in distributed or asynchronous systems using logs, metrics, and instrumentation
• Experience deploying and operating applications in a cloud environment (any major provider), including networking, access control, configuration, and monitoring; and experience designing secure systems including authentication and authorization flows
• Experience implementing production-grade monitoring, alerting, and CI/CD practices; and ability to work effectively in a remote-first, high-accountability environment
• The physical and mental requirements of our roles include but are not limited to regular use of a computer, devices or other office equipment, clear communication, and occasional movement. You’ll need comfort with screen work, basic hand coordination, and focus.  Reasonable accommodations may be made to enable individuals with disabilities to perform these functions.

Preferred Qualifications

• Experience building systems with offline behavior, synchronization logic, or conflict resolution
• Experience designing for auditability, traceability, or immutable data models; or operating systems in regulated or compliance-driven environments
• Experience containerizing and deploying services; building modern web applications (TypeScript and React preferred); and integrating with third-party systems or external APIs

A Day in the Life

On a typical day as a Praxis Software Engineer, you might: start with a team sync to align on sprint priorities and release readiness; review requirements with Clinical or QA partners to clarify edge cases; write and test code for a new feature in the eDiary web or mobile application; deploy a service update to the cloud and verify monitoring instrumentation; trace a production issue across client logs, backend APIs, and database queries; perform root cause analysis and implement a long-term fix; participate in a design discussion focused on improving auditability or system reliability; review pull requests and provide structured technical feedback; document logic changes to support validation traceability; and participate in on-call or release-readiness support.

About the Team

The Praxis Software Engineering team operates in a fast-paced, remote, high-accountability environment where engineers own their systems end-to-end, from design and implementation through deployment and ongoing production operations. Engineers may contribute to patient-facing platforms, clinical systems, financial infrastructure, commercial systems, or other enterprise applications. Regardless of domain, quality, data integrity, and reliability are non-negotiable. This role includes active production support responsibilities; ownership extends beyond feature delivery to sustained system reliability, observability, and operational excellence.

The Community You Will Join:

The Quality Platform team is at the heart of Airbnb’s mission to provide a seamless, high-quality experience for millions of hosts and guests. We don’t just find bugs — we build the infrastructure that prevents them. Our team sits at the intersection of Mobile Infrastructure, Developer Experience, and Applied AI. We empower thousands of engineers across Airbnb to ship with confidence by building high-scale platforms, AI-driven automation, and fault-tolerant systems. You will join a group of high-impact engineers who value craft, operational excellence, and the challenge of navigating one of the world’s most complex mobile codebases.

The Difference You Will Make:

As a Senior IOS Software Engineer, you will play a key role in evolving our Quality Platform. You will bridge the gap between product engineering and infrastructure, ensuring that our IOS codebase remains highly testable and resilient as it scales.

In this role, you will:

• Build AI-Native Tooling: Move beyond traditional automation by implementing AI-driven agents that optimize our CI/CD pipelines and provide intelligent feedback to developers.
• Enhance Developer Velocity: Identify and resolve systemic bottlenecks in the development lifecycle, allowing teams to move faster without compromising quality.
• Advocate for Quality by Design: Work directly with product teams to guide architectural decisions, ensuring that new features are modular and testable from the first line of code.
• Ship High-Scale Infrastructure: Own the development and maintenance of frameworks used by hundreds of engineers across Airbnb, ensuring they are performant, reliable, and easy to use.

A Typical Day: 

• Hands-on Development: Write high-quality, performant Swift code to extend testing frameworks and build AI-powered developer tools, leveraging LLMs to accelerate development workflows
• Technical Ownership: Take ownership of key components of our Automated Quality Platform, ensuring operational excellence and high availability (24x7) of our testing infrastructure.
• Design & Review: Participate in deep-dive design reviews for new IOS features, providing expert guidance on modularity and testability patterns.
• Applied AI: Implement LLM-based solutions for smart test orchestration, test case generation, and autonomous test discovery to reduce CI feedback loops.
• Cross-Functional Collaboration: Partner with Product and Mobile Infrastructure teams to align platform capabilities with the needs of the broader engineering org.
• Mentorship: Review code and provide technical guidance to peers, fostering a culture of commitment to craft and engineering rigor.

Your Expertise:

• Experience: 5+ years of professional IOS development experience (or 2+ years with a PhD) in a fast-paced, high-growth tech environment.
• Technical Mastery: Strong proficiency in Swift and the IOS SDK. You have a solid understanding of modern IOS architecture and the Xcode build lifecycle.
• Infrastructure Experience: Demonstrated expertise in building or maintaining test automation frameworks (e.g., XCUITest) at scale.
• CI/CD & Tools: Familiarity with CI/CD orchestration and a passion for building tools that improve the developer experience.
• AI Curiosity: A strong interest or hands-on experience in leveraging AI/LLMs to solve engineering productivity or quality challenges.
• Problem Solving: Proven ability to navigate complex, ambiguous codebases and implement best-in-class solutions.
• Communication: Excellent communication skills with the ability to facilitate technical discussions across cross-functional teams.

Our Commitment To Inclusion & Belonging:

Airbnb is committed to working with the broadest talent pool possible. We believe diverse ideas foster innovation and engagement, and allow us to attract creatively-led people, and to develop the best products, services and solutions. All qualified individuals are encouraged to apply.

We strive to also provide a disability inclusive application and interview process. If you are a candidate with a disability and require reasonable accommodation in order to submit an application, please contact us at: reasonableaccommodations@airbnb.com. Please include your full name, the role you’re applying for and the accommodation necessary to assist you with the recruiting process. 

We ask that you only reach out to us if you are a candidate whose disability prevents you from being able to complete our online application.

In Short

Arke is searching for a Quality Assurance (QA) Engineer to join our successful and growing team. The key focus of the QA Engineer is to develop a quality of process focused across multiple projects. The QA Engineer will collaborate closely and work in a cross-functional team to deliver digital transformation by using nonconventional thinking to get into the mindset of how product owners and end users view the product.

What You’ll Be Doing

The QA Engineer is responsible for Quality Assurance Testing, User Acceptance Testing, scheduling, coordinating and management of releases across different product categories. These releases can include product feature updates, bug fixes, new feature enhancements, and all other aspects introduced to the product line. This role is also responsible for quality review of various applications and includes creating test plans and strategy, test cases in partnership with developers, business analysts and project managers which are used to shape and verify code and check conformance to business and system requirements. The role relies upon manual testing tools and test automation as a new process within Arke.

What We’d Love to See

• 3+ years quality assurance/manual testing experience on public facing web applications, including validation across desktop and mobile devices, multiple browsers, and responsive breakpoints
• 3+ years of experience working on web-based software projects, including participation across the software development lifecycle (requirements, design, development, testing, release, and post-release support) for customer-facing websites or web applications
• 2+ years of automated testing experience (Cypress, Playwright or similar) including test architecture design, reusable test utilities, test data strategy, and CI/CD integration
• 2+ years of experience validating API integrations (Swagger, Postman) or automated API testing frameworks (Playwright API, Cypress API, etc.)
• Previous release management experience
• Ability to work within an Agile or Waterfall environment, including identifying gaps, clarifying edge cases, and ensuring acceptance criteria are testable and aligned with business requirements
• Experience reviewing workflows, user journeys, or UI designs using tools such as Figma, Miro, or similar diagramming and design collaboration tools
• Experience managing project requirements/test results within Agile tools (i.e., Azure DevOps and Jira)
• Experience using collaboration and documentation tools such as Confluence, ADO wiki or similar knowledge management platforms
• Preferred experience using cross-browser and cross-device testing platforms such as BrowserStack, LambdaTest, or similar tools for validating functionality across browsers, operating systems, and device types
• Highly self-motivated and directed
• Able to exercise independent judgment and act on it
• Excellent listening, interpersonal, written, and oral communication skills
• Logical and efficient, with keen attention to detail
• Ability to effectively prioritize and execute tasks while under pressure
• Strong customer service orientation
• Experience working in a team-oriented, collaborative environment
• Bachelor’s degree from an accredited college/university, with a preferred concentration in Business, Management Information Systems, or Accounting
• Ability to maintain positive and productive working relationships with stakeholders, peers, and leadership

It Would be Nice to Have

• Preferred experience with testing on Content Management Systems (CMS) systems both from the user side and admin side (Sitecore, Optimizely, ContentStack, Contentful)
• ADA & WCAG 2.0 (level AA) Compliance testing experience
• Proven experience writing automated test scripts for functional and integration testing
• Working knowledge of JavaScript, HTML, and CSS sufficient to debug UI issues, analyze DOM behavior, and support automated test development, with familiarity with modern front-end frameworks such as React, Next.js, or similar