Senior Full Stack Engineer | Ruby on Rails

US‑Based fintech company offering a competitive salary with growth opportunities.

A rapidly growing SaaS fintech is looking for a Senior Full Stack Engineer based in Brazil to help scale a market‑leading platform used within the alternative investments sector.

• Leading technical delivery across major product initiatives
• Designing and building scalable backend APIs using Ruby on Rails
• Developing modern frontend applications with React.js
• Collaborating closely with Product and Engineering teams to solve real user problems
• Writing clean, maintainable, and well‑tested code across the full stack
• Contributing to ongoing product and platform improvements

• 3+ years of software engineering experience
• Strong commercial experience with Ruby on Rails and React.js
• Comfortable working across the full stack in a product‑focused env...