Learning & Development Jobs in Rio de Janeiro.
All active Learning & Development roles based in Rio de Janeiro.
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Staff Software Engineer - Mobile Platform
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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/
Ready to apply?
Apply to Nubank
Senior Software Engineer, Go (Edge)
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About Telnyx
Telnyx is an industry leader that's not just imagining the future of global connectivity—we're building it. From architecting and amplifying the reach of a private, global, multi-cloud IP network, to bringing hyperlocal edge technology right to your fingertips through intuitive APIs, we're shaping a new era of seamless interconnection between people, devices, and applications.
We're driven by a desire to transform and modernize what's antiquated, automate the manual, and solve real-world problems through innovative connectivity solutions. As a testament to our success, we're proud to stand as a financially stable and profitable company. Our robust profitability allows us not only to invest in pioneering technologies but also to foster an environment of continuous learning and growth for our team.
Our collective vision is a world where borderless connectivity fuels limitless innovation. By joining us, you can be part of laying the foundations for this interconnected future. We're currently seeking passionate individuals who are excited about the opportunity to contribute to an industry-shaping company while growing their own skills and careers.
Telnyx Edge Compute is our serverless platform — it lets developers deploy Go, Python, and Java functions directly onto Telnyx's global network, running application logic milliseconds away from end users. It's how our customers handle webhooks, voice and messaging events, and AI inference at the edge, without touching a server.
We're looking for a Go engineer to join the Edge Compute squad and help us build the platform behind it. You'll be working on the runtime, the deployment pipeline, the CLI, and the control plane that makes "write a function, deploy it globally" feel effortless. The systems you build will be used by every developer on Telnyx — so the bar for reliability, performance, and developer experience is high.
What you'll do
- Design and build the Go services that power our serverless runtime, function deployment pipeline, and global control plane.
- Make the platform feel great to use — clean APIs, a sharp CLI, predictable behaviour, useful error messages. Developer experience is a feature, not an afterthought.
- Diagnose and fix latency, throughput, and reliability issues across a system that spans data centres around the world.
- Build automation and tooling that lets us operate the platform safely at scale.
- Participate in on-call for the systems you build.
What we're looking for
- 2-5 years of professional backend software development experience.
- Proficiency in Go, or strong experience in a comparable backend language (Rust, Java, C++) with a real interest in writing Go day-to-day.
- Solid grounding in distributed systems — you've debugged a service-to-service problem in production and know what kinds of things go wrong at the edges.
- Experience running services in a high-availability environment, including being on-call.
- Comfort designing APIs that other engineers (internal or external) will actually use.
- Working knowledge of relational databases — when to reach for one, and when not to.
Bonus points for
- Experience building developer tools, platforms, runtimes, or anything where your users are other engineers.
- Familiarity with serverless or edge-compute platforms (Cloudflare Workers, Fastly Compute, Lambda, Fly.io, Deno Deploy, etc.).
- Experience with our stack: Docker, Kubernetes, Consul, Prometheus, RabbitMQ, Jenkins.
- Experience operating systems across multiple regions or data centres.
- Open source contributions, particularly in the Go ecosystem.
Ready to apply?
Apply to Telnyx
Pessoa Engenheira de Software Mobile - exclusiva para Pessoas com Deficiência
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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/
Ready to apply?
Apply to Nubank
Software Engineer, Platform - Rio de Janeiro, Brazil
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The mission of Speechify is to make sure that reading is never a barrier to learning.
Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.
Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies.
Overview
The responsibilities of our Platform team include building and maintaining all backend services, including, but not limited to, payments, analytics, subscriptions, new products, text to speech, and external APIs.
This is a key role and ideal for someone who thinks strategically, enjoys fast-paced environments, is passionate about making product decisions, and has experience building great user experiences that delight users.
We are a flat organization that allows anyone to become a leader by showing excellent technical skills and delivering results consistently and fast. Work ethic, solid communication skills, and obsession with winning are paramount.
Our interview process involves several technical interviews and we aim to complete them within 1 week.
What You’ll Do
- Design, develop, and maintain robust APIs including public TTS API, internal APIs like Payment, Subscription, Auth and Consumption Tracking, ensuring they meet business and scalability requirements
- Oversee the full backend API landscape, enhancing and optimizing for performance and maintainability
- Collaborate on B2B solutions, focusing on customization and integration needs for enterprise clients
- Work closely with cross-functional teams to align backend architecture with overall product strategy and user experience
An Ideal Candidate Should Have
- Proven experience in backend development: TS/Node (required)
- Direct experience with GCP and knowledge of AWS, Azure, or other cloud providers
- Efficiency in ideation and implementation, prioritizing tasks based on urgency and impact
- Preferred: Experience with Docker and containerized deployments
- Preferred: Proficiency in deploying high availability applications on Kubernetes
What We Offer
- A dynamic environment where your contributions shape the company and its products
- A team that values innovation, intuition, and drive
- Autonomy, fostering focus and creativity
- The opportunity to have a significant impact in a revolutionary industry
- Competitive compensation, a welcoming atmosphere, and a commitment to an exceptional asynchronous work culture
- The privilege of working on a product that changes lives, particularly for those with learning differences like dyslexia, ADD, and more
- An active role at the intersection of artificial intelligence and audio – a rapidly evolving tech domain
Think you’re a good fit for this job?
Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.
Not looking but know someone who would make a great fit?
Refer them!
Speechify is committed to a diverse and inclusive workplace.
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.
Ready to apply?
Apply to Speechify
The Company You’ll Join
Carta connects founders, investors, and limited partners through world-class software, purpose-built for everyone in venture capital, private equity and private credit. Trusted by 65,000+ companies in 160+ countries, Carta’s platform of software and services lays the groundwork so you can build, invest, and scale with confidence.
Carta’s Fund Administration platform supports 9,000+ funds and SPVs, representing nearly $185B in assets under management, with tools designed to enhance the strategic impact of fund CFOs. Recognized by Fortune, Forbes, Fast Company, Inc. and Great Places to Work, Carta is shaping the future of private market infrastructure.
Together, Carta is creating the end-to-end ERP platform for private markets. Traditional ERP solutions don’t work for Private Funds. Private capital markets need a comprehensive software solution to replace outdated spreadsheets and fragmented service providers. Carta’s software for the Office of the Fund CFO does just that - it’s a new category of software to make private markets look more like public markets - a connected ERP for private capital.
For more information about our offices and culture, check out our Carta careers page.
The Problems You'll Solve
As a Treasury Analyst, you’ll be an integral part of Carta’s Fund Administration business supporting a global FA Treasury team—owning daily operational processes while driving improvements that enhance the overall client experience. Beyond executing payments and managing bank administration tasks, you’ll collaborate cross-functionally to identify inefficiencies, contribute to scalable solutions, and help shape how we support fund operations at scale.
- Own end-to-end payment execution workflows, including initiating and reviewing ACH / Wire and FX payments for client approval
- Collaborate with cross-functional teams such as Product, Engineering and Operations to troubleshoot issues, improve processes, and influence product roadmaps
- Communicate with clients and external stakeholders to address inquiries and provide a high-quality support experience
- Lead or support the opening and setup of new client bank accounts in partnership with Onboarding and Implementation teams
- Establish and maintain bank connectivity, ensuring transactions are accurately uploaded to the Carta platform
- Proactively identify operational gaps, risks and support the development of scalable solutions
- Contribute to the creation and maintenance of internal reporting, documentation, playbooks, and training resources
- Support data analysis and reporting needs using Excel, Metabase, Looker and other internal data tools
- Verify vendor / payee wire instructions, collect necessary documentation (e.g., W-9s), and ensure compliance with internal controls
The Impact You'll Have
At Carta, we’re building infrastructure that helps innovators unlock the power of ownership. On the Treasury team, you'll be at the center of that mission—ensuring our clients' capital flows reliably and efficiently. You'll work closely with the Fund Administration team to help with the day-to-day payment processing requests and bank administration tasks on behalf of fund administration clients. You’ll play a vital role in ensuring accurate and timely fund movements for our clients. Your contributions will help improve and scale our Treasury processes, while giving you the opportunity to grow cross-functionally and influence how we support fund operations at Carta.
About You
- Fluency in English, both verbal and written
- 2–3 years of experience in Treasury, banking operations, or payment processing, with an interest in growing into more strategic or technical roles
- Strong attention to detail and a high degree of ownership over assigned workflows
- Clear verbal and written communicator who is comfortable interacting directly with clients and cross-functional stakeholders
- Proficient in Excel and adaptable to learning tools like Looker, Salesforce, or other internal platforms
- Comfortable navigating ambiguity, asking thoughtful questions, and proposing ideas for process improvement
- Intellectual curiosity with a strong appetite for continuous learning and growth
- Strong problem-solving and critical thinking skills; naturally curious and solution-oriented
- Interested in building a long-term career in Treasury, Fund Administration, or fintech operations
- Understanding of Fund Administration is a plus
Disclosures:
- We are an equal opportunity employer and are committed to providing a positive interview experience for every candidate. If accommodations due to a disability or medical condition are needed, please connect with the talent partner via email.
- Carta uses E-Verify in the United States for employment authorization. See the E-Verify and Department of Justice websites for more details.
- For information on our data privacy policies, see Privacy, CA Candidate Privacy, and Brazil Transparency Report.
- Please note that all official communications from us will come from an @carta.com or @carta-external.com domain. Report any contact from unapproved domains to security@carta.com.
Ready to apply?
Apply to Carta
Senior Software Engineer, Windows/Desktop Applications - Rio de Janeiro, Brazil
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The mission of Speechify is to make sure that reading is never a barrier to learning.
Over 50 million people use Speechify’s text-to-speech products to turn whatever they’re reading – PDFs, books, Google Docs, news articles, websites – into audio, so they can read faster, read more, and remember more. Speechify’s text-to-speech reading products include its iOS app, Android App, Mac App, Chrome Extension, and Web App. Google recently named Speechify the Chrome Extension of the Year and Apple named Speechify its 2025 Design Award winner for Inclusivity.
Today, nearly 200 people around the globe work on Speechify in a 100% distributed setting – Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and Google, leading PhD programs like Stanford, high growth startups like Stripe, Vercel, Bolt, and many founders of their own companies
- Lead the design, architecture, and development of native Windows desktop applications using Windows App SDK, WinUI (or related UI frameworks), C#, XAML, and — when needed — C++.
- Define and enforce best-practices for Windows desktop development across the codebase: code architecture, performance, memory usage, responsive UI, cross-version compatibility (Windows 10/11+), and maintainability.
- Drive accessibility efforts: integrate and validate support for accessibility APIs (e.g. Microsoft UI Automation or other relevant Windows accessibility frameworks), ensure UI controls, focus management, keyboard navigation, screen-reader support, and usability for users with disabilities.
- Collaborate closely with product designers, UX researchers, QA, and other stakeholders to shape feature planning, UI/UX architecture, and long-term roadmap for the Windows platform.
- Take ownership of full lifecycle of features: conception → design → implementation → testing → release → maintenance. Ensure quality, reliability, and consistency across releases.
- Identify, diagnose, and resolve complex bugs, performance bottlenecks, memory leaks, rendering issues, or compatibility problems — and propose robust architectural or design solutions.
Required:
- 3+ in Windows desktop application development using Windows App SDK, WinUI (or similar), C#, XAML — and ideally additional experience with native Windows code (C++, Win32/WinRT/COM).
- Deep understanding of Windows application architecture, including interop between managed code (.NET) and native code.
- Proven track record of designing, building, and shipping production-quality desktop applications, with an emphasis on reliability, performance, scalability, and maintainability.
- Strong experience with accessibility APIs on Windows (e.g. Microsoft UI Automation or similar), and a dedication to building accessible and inclusive software.
- Excellent software engineering fundamentals: OOP, design patterns, data structures, algorithms, memory management, multi-threading or asynchronous programming (where relevant).
- Experience leading technical design, mentoring other engineers, conducting code reviews, and making architecture-level decisions.
- Strong communication skills; ability to articulate tradeoffs, collaborate with cross-functional teams, and drive consensus.
- A user-centric mindset: focus on building polished, intuitive, and accessible experiences for end users.
Preferred / Bonus:
- Experience with writing automated tests for UI — unit tests, integration tests, UI automation tests; familiarity with relevant testing frameworks.
- Experience with performance optimization for desktop apps (memory usage, startup time, rendering performance, high-DPI support, responsiveness under load).
- Experience with localization/globalization, right-to-left UI support, internationalization, accessibility for multiple regions.
- Familiarity with telemetry, analytics, crash reporting, logging, and error monitoring in desktop applications.
- Previous experience in shaping CI/CD workflows, release pipelines, and deployment strategies for desktop applications.
- Demonstrated ability to take ownership of feature areas or modules and drive them long-term, including maintenance, refactoring, and technical debt management.
What we offer
- A high-impact role: you will define architecture, shape the future of our Windows product, and directly influence what millions of users see and experience.
- A collaborative, flat-structure engineering culture — you are not just a coder, but a builder and a decision-maker.
- Opportunities to lead — mentor others, steer technical direction, and grow into broader technical leadership (e.g. Tech Lead, Architect).
- Flexibility, autonomy, and responsibility: you define how to solve problems, own features end-to-end, and contribute to long-term product vision.
- A purpose-driven mission: building software that’s reliable, accessible, and user-centered — making a real difference for people.
Think you’re a good fit for this job?
Tell us more about yourself and why you're interested in the role when you apply.
And don’t forget to include links to your portfolio and LinkedIn.
Not looking but know someone who would make a great fit?
Refer them!
Speechify is committed to a diverse and inclusive workplace.
Speechify does not discriminate on the basis of race, national origin, gender, gender identity, sexual orientation, protected veteran status, disability, age, or other legally protected status.
Ready to apply?
Apply to Speechify
Lead Mobile Software Engineer
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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/
Ready to apply?
Apply to Nubank
Lead/Staff Machine Learning Engineer
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About us
Nu was born in 2013 with the mission to fight complexity to empower people in their daily lives by reinventing financial services. We are one of the world’s largest digital banking platforms, serving millions of customers across Brazil, Mexico, and Colombia. For more information, visit our institutional page https://international.nubank.com.br/careers/
ML Engineering at Nubank
Data Science is essential to every part of the business at Nubank, since Day 1. Most areas of the company use data science to some extent. ML Engineers are key to connecting ML models and ML-enabled systems to the rest of our infrastructure, while making sure that they work properly, delivering value to our customers.
As a Machine Learning Engineer, you’re expected to
- Interact with other team members to understand how to best apply data science and artificial intelligence to Nubank’s problems;
- Help monitor and maintain models and ML systems, making sure they are working well as measured by performance, operational and business metrics;
- Help deploy ML models both in batch and real-time scenarios. This may include building pipelines, constructing features and integrating models to other systems;
- Help build and maintain tooling and platforms to scale operations across multiple teams;
- Be familiar with modeling and statistics concepts;
Our ideal candidate
- Has extensive programming experience and is familiar with modern development techniques;
- Has experience creating, deploying and maintaining ML models and ML-enabled systems using modern frameworks;
- Understands the most common failure modes in ML-enabled systems and knows how to avoid and/or mitigate those;
- Is familiar with all stages of the ML model lifecycle, from inception to deployment and steady-state operation;
- Is familiar with cloud-based services from vendors such as AWS, GCP and Azure.
- Is familiar with software engineering and architecture principles and how they enable sustainable and maintainable systems;
- Is familiar with data engineering routines, pipelines and job scheduling frameworks;
- Is able to navigate complex mathematical and analytical environments when needed;
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
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/
Ready to apply?
Apply to Nubank
Senior Mobile Software Engineer
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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/
Ready to apply?
Apply to Nubank
Senior Business Analyst
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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/
Business Analysts at Nubank
As a company at the forefront of the financial revolution in Brazil, Nubank has experienced exponential growth since its inception. To keep your growth path healthy, numerous critical decisions constantly need to be made. Business Analysts are fundamental in the decision process because they must not only be able to deal with large amounts of information and data, but also always think of ways to improve our clients' experience.
It is BA's responsibility to structure the data, analyze it and use the results to test different solutions with the aim of improving Nubank's efficiency.
We are looking for people who are independent and who are not afraid to take the initiative to identify and solve problems that are not necessarily obvious.
You can read more about it in our blog and get some insights into how we work.
As a Business Analyst, you’re expected to:
- Do a lot of investigative work, focused on deciding which data makes the most sense to use in which situation. If you don't have the data, it's your job to think about what tests can be done or how to extract the information you need to answer your questions;
- Support your team in making data-based decisions by monitoring analysis and decisions, ensuring the flow of projects and making the process of taking risks comfortable despite the uncertainties;
- Learning how to work with a large volume of data to build a solid foundation for decision making with calculated risks - even knowing that not all the answers are in the data and/or that not all the data you would like is available;Use tools like SQL, Python and Scala - taught during your first weeks with us - for data extraction;
- Understand our products and interactions with other areas;
- Take advantage of opportunities to grow and learn from a well-prepared and highly qualified team;
- Opportunity to work in a complex, dynamic and diverse environment, participating in projects that will impact a large number of clients.
What are we looking for?
- Analytical capacity: ease with numbers and calculations, having the ability to solve problems mathematically;
- Business basics: dynamics between risks and opportunities, as well as interaction between business areas and technical areas (products/engineering);
- Problem solving: ease and creativity to seek solutions to day-to-day challenges and achieve the best results;
- Ability to understand how your decisions and work impact our customers' experience, seeking results that align with our purpose;
- Willingness and ease of learning, especially for tools;
- Openness to receive feedback and incorporate it into your daily life and development;
- Adaptability to the multifunctional environment;
- Profiles that add value to Nubank's culture.
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/
Ready to apply?
Apply to Nubank
Senior Software Engineer
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.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/
Engineering at Nubank
We strive for state-of-the-art software development practices, that currently includes a variety of technologies. While we value candidates that are familiar with them, we are also confident that software engineers who are interested in joining Nubank will be able to learn from our team.
- Horizontally scalable microservices written mostly in Clojure, using Finagle and leveraging upon functional programming techniques and hexagonal architecture
- High throughput jobs and inter-service communication using Kafka
- Continuous Integration and Deployment into AWS
- Storing data in Datomic and DynamoDB
- Monitoring and observability with Prometheus
- Running as much as possible in Kubernetes
We are a process-light organization that values human interactions. We value working in small, independent teams that feel like small startups within the company, and eschew coupling and centralizing where realistic. We understand that execution is the key to success and optimize processes to remove bottlenecks.
As a Software Engineer, you’re expected to:
- Work with large scale distributed systems
- Collaborate with building microservices
- Have practical knowledge of agile software development methodologies
- Work with continuous delivery and infrastructure as code
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/
Ready to apply?
Apply to Nubank
Staff Software Engineer
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.
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
Our Engineering team helps Nubank to create and use the technology that provides us to build the best financial products. We strive for state-of-the-art software development practices that currently include a variety of technologies. While we value candidates that are familiar with them, we are also confident that software engineers who are interested in joining Nubank will be able to learn from our team. The software engineer is focused on software development with Clojure as the main programming language (We will teach you Clojure). Main responsibilities:
- Horizontally scalable microservices written mostly in Clojure, using Finagle and leveraging upon functional programming techniques and hexagonal architecture
- High throughput jobs and inter-service communication using Kafka
- Continuous Integration and Deployment into AWS
- Storing data in Datomic and DynamoDB
- Monitoring and observability with Prometheus
- Running as much as possible in Kubernetes
We are a process-light organization that values human interactions. We value working in small, independent teams that feel like small startups within the company, and eschew coupling and centralizing where realistic. We understand that execution is the key to success and optimize processes to remove bottlenecks.
You will be responsible for
- Work with large scale distributed systems, understanding their broad architecture
- Set technical direction for multiple teams, ensuring alignment with Business Areas and architecture strategies
- Drive pragmatic innovation while ensuring resilient and flexible solutions that scale across products and geographies
- Mentor engineers across teams, establishing and maintaining a high technical bar organization-wide
- Write, test, instrument, document, and maintain code. Able to pair and participate in code reviews to contribute to the growth of others in and around the team
- Collaborate closely with Product, Design, and Engineering leaders to build new experiences
- Ensure comprehensive observability, performance monitoring, and error handling across team services
- Participate in on-call rotations for your team and respond to incidents as necessary
- Work focused on backend applications, and be open to contribute to mobile and frontend development, according to business needs
We are looking for a person who has
- At least 10 years of experience developing digital products in complex environments
- Deep expertise in distributed systems, microservices architecture, and cloud technologies
- Proven track record of designing and delivering large-scale systems that serve thousands (or even millions) of users
- Strong background in object-oriented or functional programming languages, with ability to work across multiple languages
- Demonstrated ability to lead technical initiatives across multiple teams without direct authority
- Experience mentoring senior engineers and raising the technical bar across organizations
- Practical knowledge of agile software development methodologies and previous experience with CI/CD
- Good communication skills to prevent risks and explain trade-offs clearly to both technical and non-technical stakeholders
- Advanced English skills
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/
Ready to apply?
Apply to Nubank
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