Senior Full Stack Engineer – API-Driven Fintech Platform (Remote, LATAM) (USD SALARY)

Bounty Amount: $8,000 - 13,000

Company Name: Aktos

Role Type: Full-Time

Location: LATAM - Preferably Brazil

Salary / Hourly Rate: $80,000 - $130,000 per year

Benefits: N/A

Role Information

Role Overview: N/A

Responsibilities: Design, build, and maintain full-stack features that power core customer workflows across the platform, Own features end-to-end, from technical design and implementation through production deployment and iteration, Develop and maintain backend services and APIs that integrate with third-party systems and payment infrastructure, Build user-facing interfaces and internal tools that improve customer workflows and operational efficiency, Collaborate closely with product and leadership to translate real customer needs into scalable technical solutions, Contribute to architectural decisions as the platform evolves and scales, Improve and maintain CI/CD pipelines, deployment workflows, and cloud infrastructure, Ensure high standards for code quality, testing, reliability, and documentation, Participate in debugging, performance tuning, and production support when needed

Qualifications: 5+ years of experience building production web applications in a full-stack or backend-leaning role., Strong proficiency in Python and backend frameworks such as Django., Solid experience with modern frontend frameworks such as React., Strong fundamentals with SQL and relational databases such as PostgreSQL., Experience designing and consuming APIs and working with third-party integrations., Hands-on experience deploying and operating services in cloud environments such as AWS., Familiarity with containerized applications and CI/CD pipelines (e.g., Docker, GitHub Actions)., Experience debugging production issues and improving performance, reliability, and scalability over time., Comfortable operating in a fast-paced, early-stage startup environment with real production customers., Strong ownership mentality with the ability to take projects from idea to production., Clear communicator who collaborates well with product, leadership, and other engineers., Strong problem-solving skills and a bias toward shipping high-quality software.

Minimum Requirements: 5+ years of full-stack or backend-leaning engineering experience in production environments,Strong Python/Django experience and comfort building APIs,Experience building and deploying cloud-hosted applications with relational databases,Experience working in well funded startups and high growth companies

Screening Questions: (Optional Video). This step is completely optional. If you’d like, record a short 2–3 minute video introducing yourself and your experience — or share a recording of your interview with the recruiter if that’s easier. You can upload the link via Loom or Google Drive. This just helps us get to know you better, but there’s no pressure if you’d prefer to skip it.,(Optional Portfolio / GitHub) If available, please share a link to your GitHub, portfolio, or any recent projects you’ve worked on. This is entirely optional but helps provide more context about your work.,Tell us about a full-stack feature or system you owned end-to-end in production. What problem did it solve, what was your technical approach across backend and frontend, and what tradeoffs did you make?

Company Information

About Company: N/A

Culture: N/A

Additional Information

Interview Process: Our interview process is designed to be respectful of your time and focused on real-world engineering skills rather than abstract puzzles. It typically includes an initial screening call, a technical interview focused on practical system design and problem-solving, and a final conversation with leadership to align on scope, impact, and ownership. We aim to move quickly and keep the process straightforward, with clear communication at every step.

Day to day: You’ll work closely with product and leadership to design and ship full-stack features that power core customer workflows in production. Day to day work includes building backend services and APIs, implementing user-facing interfaces, reviewing code, and iterating on features based on real customer feedback. You’ll take ownership of projects from scoping through deployment, contribute to architectural decisions as the platform evolves, and help improve internal tooling, CI/CD workflows, and cloud infrastructure to support a growing product and customer base.

Team: You’ll join a small, senior engineering team in a remote-first environment and work directly with founders and core technical leadership. The team is lean and highly collaborative, with engineers owning features end-to-end and working closely with product to ship improvements quickly. This role reports directly into engineering leadership, with close day-to-day collaboration across product and operations.

Growth: This is a high-impact role at an early-stage, well-funded company where you’ll have meaningful ownership over core parts of the platform. As the company scales, there is room to grow into technical leadership, take ownership of major product areas, and help shape engineering standards and architecture. You’ll gain experience building infrastructure and customer-facing systems in a production fintech environment and have direct influence over long-term technical direction.

Ideal Candidate Profile: https://www.linkedin.com/in/williandandrade/, https://www.linkedin.com/in/guilherme-uezima/

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