Senior Full Stack Engineer (Backend-Leaning)

Job Type: Full-time

Location: Brazil (Remote)

Experience Level: Senior (5+ years)

Compensation: Up to USD 120,000/year, depending on experience

Job Description

We are seeking a Senior Full Stack Engineer (Backend-Leaning) to help build and scale a production fintech platform. In this role, you will own core product features end-to-end while contributing to the foundational infrastructure that powers real customer workflows.

This is a backend-leaning full stack position with a strong emphasis on Python, Django, APIs, and cloud infrastructure, while also requiring comfort building user-facing interfaces in React.

You will collaborate directly with technical leadership to design scalable systems, improve platform reliability, and help shape the long-term technical direction of a fast-growing fintech environment.

Must Have

• 5+ years of experience building production web applications in a full-stack or backend-focused engineering role
• Strong experience with Python and Django
• Experience designing, building, and maintaining scalable backend services and APIs
• Experience building and consuming APIs and working with third-party integrations
• Experience integrating with payment infrastructure or external systems
• Strong experience with React or modern frontend frameworks
• Experience building user-facing interfaces and internal tools
• Strong SQL fundamentals and experience working with relational databases such as PostgreSQL
• Experience deploying and operating services in cloud environments such as AWS
• Familiarity with Docker, containerized applications, and CI/CD pipelines (e.g., GitHub Actions)
• Experience owning features end-to-end, from technical design through production deployment and iteration
• Ability to collaborate cross-functionally with product and leadership teams to translate customer needs into scalable technical solutions
• Strong understanding of software quality, testing, reliability, and documentation best practices
• Experience debugging production systems, performance tuning, and operational support when needed

Nice to Have

• Experience in fintech, payments, or highly regulated environments
• Previous experience working in startups or high-growth companies
• Experience contributing to architectural decisions and scalable system design
• Strong ownership mindset and comfort operating in fast-paced environments

We’re looking for someone who:

• Thrives in a fast-moving, high-ownership environment
• Takes ideas from concept to production with minimal oversight
• Is a strong communicator and collaborative problem solver
• Has a bias toward shipping high-quality, well-tested software
• Enjoys solving real customer problems through scalable engineering

Why Join Us?

• Remote-first environment with flexible working hours
• Opportunity to work directly with technical leadership
• Practical interview process focused on real-world engineering challenges
• Fast feedback and transparent communication throughout the process



If you're excited about building scalable fintech infrastructure and owning meaningful product work end-to-end, we’d love to hear from you.