Who We Are

Stensul is the Governed Creation™ Platform for enterprise marketing teams that need to create campaigns quickly, safely, and at scale. We bring creation, collaboration, and control together in one connected platform — combining AI-enabled creation, no-code production, embedded governance, and seamless integrations across the marketing tech stack. The result: faster output, lower costs, reduced risk, and work that stays consistently on brand.

At Stensul, we’re just as intentional about how we work as about what we build. We’re a people-first team that values inclusive collaboration, ownership, and continuous learning. If you thrive in a fast-paced environment and want to help define the future of marketing creation, we’d love to meet you.

Responsibilities

• Facilitate, lead, document and communicate architectural and technical discussions and decisions in the team, assessing risks and tradeoffs, and making sure all voices are heard, while favoring consent over consensus.
• Ensure technical principles, technical direction, policies (secure SDLC, data privacy, secrets management), processes (e.g. RCAs, Post-mortems, SOC2) and best practices are positively adopted and continuously improved by the whole team. Be hands-on and lead by example.
• Develop and promote a high-quality, technical sustainability-focused and continuous learning culture, along with cross-learning spaces and meetups.
• Develop a strong sense of ownership from idea to production, maturing and maintenance in the team.
• Have accountability for continuous system availability, avoiding critical situations, and working side by side with the team when they occur.
• Stay up to date with new technologies and tools, fostering experimentation and innovation with responsibility within the team.
• Contribute to a healthy environment and constantly improve team's engagement, contributing to team's growth by providing technical guidance and mentorship.
• Integrate and actively collaborate with other TLs (from other stream-aligned teams, platform teams, SRE team), seeking to exchange and discuss ideas, proposals, and learnings aimed at improving the Engineering area as a whole.
• Coordinate high or cross-impact deployments of their team across teams, ensuring clear communication of their impact.
• Collaborate with the team's Engineering Manager to adequately staff and expand the capacity of the team on both hiring and training initiatives.
• Anticipate and proactively communicate blockers, delays and cost ballooning of the work to the appropriate stakeholders in a timely manner.
• Communicate with empathy to both technical and non-technical roles, and influences through clarity, enabling alignment across multiple teams.
• Having the flexibility to adapt to the business context with a constructive and positive attitude.

 What we look for in you:

• Open to hire in our Buenos Aires offices, or to work remotely.
• 5+ years of technical leadership in software development teams, solving complex problems that demand the best performance.
• 12+ years of experience shipping high ­quality software.
• Solid knowledge of programming languages and paradigms, software and data modeling architecture and quality.
• Strong sense of empathy toward our product users, committed both to the quality of our products and to user satisfaction.
• Experience balancing perfection and pragmatism, as well as delivering iterative solutions that avoid overengineering.
• Advanced oral and written English skills.
• Strong communication skills. Proactively  work and communicate with multiple areas in the company as well as directly with customers when the situation demands.
• Candid, transparent and honest.
• Trust in your team and ability to effectively delegate work.
• Always willing to help and learn from others and by yourself.
• Have a good balance of determination, autonomy and collaboration.
• Seek continuous and rapid feedback.
• Work by our values: Learning Agile, Team Player, Garra, Above & Beyond.
• Know how to work in an agile and collaborative environment, and contribute to its improvement by ensuring we learn together.
• Strong interest and self driven understanding of our users, our customers, our market, and our product to challenge and co-create ideas and initiatives.

Technical skills we need for you:

• Excellent Javascript programming skills in modern frameworks like Vue.js and React.
• Extensive knowledge of web server-side oriented languages (PHP, Python, Golang, Javascript for Node.js).
• Knowledge of HTML5/CSS3 web application development.
• Knowledge of relational and document oriented databases (MySQL, MongoDB).
• Knowledge of web architectures, services and APIs concepts.
• Experience using design patterns.
• Excellent OOP knowledge.
• Experience with version control (git).
• Experience with Typescript and/or other type checking technologies.
• Experience with API design.
• Proficiency on quality practices such as unit test implementation, integration/contract testing, e2e, backend and frontend performance/load testing, CI quality gates, etc.
• Strong code refactoring skills.
• Strong technical documentation and communication skills (e.g. UML).
• Proficiency on AI assisted software development workflows.
• Customer-first mindset.
• Experience with monitoring tools and metrics (Sentry, New Relic, Datadog, Kibana).
• Experience with bug tracking tools like Jira, Redmine, Bugzilla, etc.

Bonus points for having:

• Experience with iterative and incremental development cycles.
• Experience with PHP frameworks (Laravel, Zend, Symfony).
• Experience with complex, high-performance and high-availability apps.
• Experience with container technologies (Docker, Kubernetes).
• Experience with functional programming.
• Experience with end-to-end tests.
• Experience with/Knowledge of engineering prompting, MCPs and Agents.
• Experience in complex refactoring of flagship products. 
• A great sense of humor (we sure do!).

 What we offer to you:

• A competitive compensation package that includes equity.
• Company laptop and phone reimbursement.
• Lots of room to own the role and implement new technologies that fuel automation of daily work
• Flexible time off policy to balance your work and life in a way that suits you best
• Being a part of an amazing, inclusive team that lives by our shared values and is committed to building the next phase of Stensul

About the Role

We are seeking an experienced Site Reliability Engineer / Platform Engineer to join our team and help build and maintain a resilient, scalable infrastructure supporting our applications across multiple cloud providers. In this role, you will design and implement infrastructure solutions, automate operational processes, and work closely with development teams to ensure reliable, efficient systems that scale with our business.

Key Responsibilities

• Design, build, and maintain infrastructure across AWS, GCP, and Azure using Infrastructure as Code (IaC) principles
• Implement and optimize CI/CD pipelines using tools like Argo and CircleCI to enable rapid, reliable deployments
• Manage and scale Kubernetes clusters in production environments, ensuring high availability and optimal resource utilization
• Administer and optimize cloud databases including MongoDB, Redis, RDS, and other data stores for performance and reliability
• Develop monitoring, alerting, and observability solutions to identify and resolve issues before they impact users
• Automate routine operational tasks to reduce manual toil and improve system reliability
• Conduct incident response and post-mortem analysis to drive continuous improvement
• Collaborate with development teams to design systems with reliability, scalability, and operational excellence in mind
• Document infrastructure architecture, runbooks, and operational procedures
• Evaluate and implement new tools and technologies to improve platform capabilities

Required Qualifications

• 1-3 years of experience in Site Reliability Engineering, DevOps, or Platform Engineering
• Strong hands-on experience with at least two major cloud providers (AWS, GCP, Azure)
• Proficiency with Kubernetes for container orchestration and management
• Demonstrated expertise with IaC tools (Terraform, CloudFormation, Pulumi, or similar)
• Experience with CI/CD platforms, particularly Argo and/or CircleCI
• Solid understanding of database technologies including MongoDB, Redis, and relational databases (RDS)
• Proficiency in at least one programming or scripting language (Python, Go, Bash, etc.)
• Experience with monitoring and observability tools (e.g., Prometheus, Grafana, ELK, CloudWatch)
• Experience implementing and managing OpenTelemetry (OTEL) for distributed tracing, metrics, and logging
• Strong understanding of networking, security, and infrastructure best practices

Nice to Have

• Experience managing multi-cloud or hybrid cloud environments
• Familiarity with service mesh technologies (Istio, Linkerd)
• Knowledge of security hardening and compliance in cloud environments
• Experience with cost optimization in cloud infrastructure
• Contributions to open-source infrastructure or DevOps projects
• Certifications from major cloud providers

What We're Looking For

• Problem-solver who thrives on automation and reducing operational burden
• Clear communicator who can explain technical concepts to both technical and non-technical stakeholders
• Detail-oriented with strong attention to reliability and security
• Collaborative team player who enjoys mentoring others
• Self-motivated learner who stays current with infrastructure and cloud technology trends

What We Offer

• Competitive salary and comprehensive benefits package
• Opportunity to work with cutting-edge cloud technologies and tools
• Collaborative environment focused on knowledge sharing and professional growth
• Remote or flexible work arrangement
• Continuous learning and development opportunities

About the Role

We are seeking an experienced Site Reliability Engineer / Platform Engineer to join our team and help build and maintain a resilient, scalable infrastructure supporting our applications across multiple cloud providers. In this role, you will design and implement infrastructure solutions, automate operational processes, and work closely with development teams to ensure reliable, efficient systems that scale with our business.

Key Responsibilities

• Design, build, and maintain infrastructure across AWS, GCP, and Azure using Infrastructure as Code (IaC) principles
• Implement and optimize CI/CD pipelines using tools like Argo and CircleCI to enable rapid, reliable deployments
• Manage and scale Kubernetes clusters in production environments, ensuring high availability and optimal resource utilization
• Administer and optimize cloud databases including MongoDB, Redis, RDS, and other data stores for performance and reliability
• Develop monitoring, alerting, and observability solutions to identify and resolve issues before they impact users
• Automate routine operational tasks to reduce manual toil and improve system reliability
• Conduct incident response and post-mortem analysis to drive continuous improvement
• Collaborate with development teams to design systems with reliability, scalability, and operational excellence in mind
• Document infrastructure architecture, runbooks, and operational procedures
• Evaluate and implement new tools and technologies to improve platform capabilities

Required Qualifications

• 3+ years of experience in Site Reliability Engineering, DevOps, or Platform Engineering
• Strong hands-on experience with at least two major cloud providers (AWS, GCP, Azure)
• Proficiency with Kubernetes for container orchestration and management
• Demonstrated expertise with IaC tools (Terraform, CloudFormation, Pulumi, or similar)
• Experience with CI/CD platforms, particularly Argo and/or CircleCI
• Solid understanding of database technologies including MongoDB, Redis, and relational databases (RDS)
• Proficiency in at least one programming or scripting language (Python, Go, Bash, etc.)
• Experience with monitoring and observability tools (e.g., Prometheus, Grafana, ELK, CloudWatch)
• Experience implementing and managing OpenTelemetry (OTEL) for distributed tracing, metrics, and logging
• Strong understanding of networking, security, and infrastructure best practices

Nice to Have

• Experience managing multi-cloud or hybrid cloud environments
• Familiarity with service mesh technologies (Istio, Linkerd)
• Knowledge of security hardening and compliance in cloud environments
• Experience with cost optimization in cloud infrastructure
• Contributions to open-source infrastructure or DevOps projects
• Certifications from major cloud providers

What We're Looking For

• Problem-solver who thrives on automation and reducing operational burden
• Clear communicator who can explain technical concepts to both technical and non-technical stakeholders
• Detail-oriented with strong attention to reliability and security
• Collaborative team player who enjoys mentoring others
• Self-motivated learner who stays current with infrastructure and cloud technology trends

What We Offer

• Competitive salary and comprehensive benefits package
• Opportunity to work with cutting-edge cloud technologies and tools
• Collaborative environment focused on knowledge sharing and professional growth
• Remote or flexible work arrangement
• Continuous learning and development opportunities

We are looking for a Senior React Native Engineer to help us evolve our mobile architecture into a modular, multiplatform system. This role is focused on enabling rapid development of new consumer apps by composing reusable building blocks from our existing stack and delivering them through high-quality React Native applications.

This is a hands-on engineering role with significant ownership, where you will help define how we build and scale a new generation of mobile apps at Blockchain.com—making it possible to quickly launch new crypto experiences across iOS and Android.

WHAT YOU WILL DO

• Design and build scalable React Native applications powered by shared modules from our mobile and backend platforms
• Drive the architecture of a modular, reusable system, enabling rapid assembly of new apps from core building blocks (auth, wallet, trading, on-ramp/off-ramp, etc.)
• Define and enforce clear contracts and boundaries between modules, ensuring flexibility, reliability, and long-term maintainability
• Lead complex projects from technical design through delivery and iteration, working across multiple teams
• Translate ambiguous product ideas into well-structured technical plans, balancing speed, quality, and scalability
• Leverage AI-assisted development tools (e.g., Claude, Codex) to accelerate development, while setting standards for correctness, performance, and security
• Review, validate, and refine AI-generated code, ensuring it meets production-grade standards
• Drive the evolution of shared UI systems, component libraries, and developer tooling to improve velocity across teams
• Own the quality, performance, and reliability of the systems you build, including observability and debugging in production
• Mentor other engineers, contribute to code reviews, and help raise the engineering bar across the team
• Collaborate closely with Product, Design, Backend, and Mobile teams to deliver cohesive user experiences
• Support release processes, app store deployments, and ongoing improvements post-launch

WHAT YOU WILL NEED

• 5+ years of experience in software engineering, with strong hands-on experience in React Native
• Deep proficiency in JavaScript/TypeScript and modern mobile development practices
• Proven experience building and shipping production-grade mobile applications at scale
• Strong understanding of mobile architecture, modular systems, and scalable design patterns
• Experience owning features or systems from design through production and iteration
• Ability to navigate ambiguity and drive technical decisions with minimal oversight
• Experience integrating complex backend systems and APIs into mobile applications
• Strong experience leveraging AI developer tools (e.g., Claude, Codex) effectively in production workflows
• Excellent code quality standards, with the ability to review and guide others’ work
• Experience improving performance, reliability, and developer experience in mobile apps
• Strong communication skills and ability to influence cross-functional teams

NICE TO HAVE

• Experience with native mobile development (Swift, Kotlin, or Java)
• Experience designing or working on cross-platform or shared architecture systems
• Familiarity with crypto, wallets, or financial applications
• Experience integrating third-party services (e.g., payments, authentication, on-chain providers)
• Experience with CI/CD pipelines, release automation, and app store processes
• Exposure to secure key management, authentication flows, or MPC wallets

COMPENSATION & PERKS

• Competitive full-time salary based on experience and meaningful equity in an industry-leading company
• This is a role based in our Palermo office, with a mandatory in-office presence four days per week.
• The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry.
• Performance-based bonuses
• Apple equipment provided by the company
• Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year.

We are looking for a Mid-Level React Native Engineer to help us evolve our mobile architecture into a modular, multiplatform system. This role is focused on enabling rapid development of new consumer apps by composing reusable building blocks from our existing stack and delivering them through high-quality React Native applications.

This is a hands-on engineering role where you will contribute to a new way of building apps at Blockchain.com—making it possible to quickly launch new crypto experiences across iOS and Android.

WHAT YOU WILL DO

• Build and maintain React Native applications that leverage shared modules from our existing mobile and backend systems
• Contribute to a modular architecture that enables rapid assembly of new apps from reusable components (auth, wallet, trading, on-ramp/off-ramp, etc.)
• Collaborate with mobile, backend, and product teams to define clean interfaces between modules and ensure seamless integration
• Translate product ideas into shippable mobile experiences with a focus on speed, quality, and scalability
• Use AI-assisted development tools (e.g., Claude, Codex) to accelerate implementation, while ensuring correctness, performance, and maintainability
• Validate and review AI-generated code, maintaining a high bar for quality and security
• Contribute to shared UI patterns, component libraries, and developer tooling for faster app development
• Participate in the full development lifecycle: prototyping, building, testing, releasing, and iterating
• Support app store deployments, releases, and post-launch improvements
• Debug issues across the stack and improve reliability and performance of mobile apps

WHAT YOU WILL NEED

• 2–5 years of experience in software engineering, with hands-on experience in React Native
• Strong proficiency in JavaScript/TypeScript and modern mobile development practices
• Experience building and shipping production mobile apps (iOS and/or Android)
• Solid understanding of component-based architecture and modular design principles
• Ability to work with APIs and integrate complex backend-driven features
• Experience using AI developer tools (e.g., Claude, Codex) or strong interest in leveraging them effectively
• Strong attention to detail and ability to review and validate code for quality and correctness
• Familiarity with mobile performance, debugging, and testing best practices
• Good communication skills and ability to collaborate across teams 

NICE TO HAVE

• Experience with native mobile development (Swift, Kotlin, or Java)
• Experience working on shared codebases or cross-platform architectures
• Familiarity with crypto, wallets, or financial applications
• Experience integrating third-party services (e.g., payments, authentication, on-chain providers)
• Experience with CI/CD pipelines and app store release processes
• Exposure to secure key management, authentication flows, or MPC wallets

COMPENSATION & PERKS

• Competitive full-time salary based on experience and meaningful equity in an industry-leading company
• This is a role based in our Palermo office, with a mandatory in-office presence four days per week.
• The opportunity to be a key player and build your career at a rapidly expanding, global technology company in an exciting, emerging industry.
• Performance-based bonuses
• Apple equipment provided by the company
• Work from Anywhere Policy: You can work remotely from anywhere in the world for up to 20 days per year.

About Us

Nubank was founded in 2013 to free people from a bureaucratic, slow and inefficient financial system. Since then, through innovative technology and outstanding customer service, the company has been redefining people's relationships with money across Latin America. With operations in Brazil, Mexico, and Colombia, Nubank is today one of the largest digital banking platforms and technology-leading companies in the world. Nubank was listed on the NYSE in 2021 and was recently named one of Time Magazine's 100 Most Influential Companies. For more information, visit www.nu.com.br.

About the Role

NuPay is a primary pillar in Nubank’s mission to revolutionize BNPL (Buy Now, Pay Later) solutions, creating a seamless bridge between customers and merchants. By stripping away the friction of traditional e-commerce checkouts, we are building an ecosystem where secure, instant payments are accessible across all channels—from online carts to physical stores via digital wallets.

You will join the NuPay team as a technical anchor, driving the evolution of a payments stack that balances massive scale with ironclad reliability. This role is about more than just moving bits; it’s about architecting the financial infrastructure that millions of people and businesses rely on to grow, ensuring every transaction is a bridge of trust between Nubank and our partners.

As a senior technical leader, you will oversee the technical direction of our payment features, navigating the complexities of authorization and settlement while mentoring the next generation of engineers. You will sit at the intersection of product innovation and platform stability, ensuring our checkout experience remains the gold standard for Latin American fintech.

Responsibilities

• Architect scalable systems for the NuPay domain, ensuring seamless and robust integration with our global internal payment platforms.

• Lead technical design for core payment lifecycles—including authorization, capture, settlement, and reconciliation—while balancing performance with security.

• Scale the payments platform to maintain high availability during extreme traffic surges, such as Black Friday or major retail events.

• Partner with Product Managers to iterate on the checkout journey, optimizing for high conversion and low churn while maintaining a world-class NPS.

• Define engineering standards for architecture, observability, and security, influencing multiple squads to uphold a high quality bar.

• Collaborate with Risk and Finance teams to engineer solutions that satisfy complex regulatory requirements without compromising the user experience.

Required Qualifications

• Track record of technical leadership in architecting complex, distributed software environments at scale.

• Deep expertise in high-availability systems, with demonstrated ability to perform rigorous trade-off analysis for long-term scalability.

• Background in high-criticality FinTech, specifically within Payments or Core Banking environments governed by strict SLAs.

• Evidence of delivering high-throughput systems using modern engineering practices, including automated testing, observability, and safe rollout strategies.

• Experience mentoring senior engineers, fostering a culture of technical excellence and shared ownership across organizational boundaries.

Nice to Have

• Experience with acquiring, sub-acquiring, or payment gateway architecture.

• Previous involvement with e-commerce or marketplace platforms managing proprietary payment stacks.

Location & Work Model

This role is based in São Paulo or Campinas, Brazil or Toronto, Canada or Buenos Aires, Argentina on a Hybrid model.

Diversity & Inclusion / Equal Opportunity

At Nubank, we believe that diversity is essential to building the best products and services. We are committed to creating a welcoming work environment that respects and values diversity in all its forms, and we encourage people from all backgrounds to apply. We are proud to be an equal opportunity employer and do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

For information on how we handle your data, please see our Candidate Privacy Notice on our careers site.