Senior Ruby on Rails Developer

Description

We are looking for a Ruby on Rails Developer to join the engineering team of one of our Health clients — one of the largest health benefits platforms in Brazil and Mexico, providing access to over 29,000 gyms across more than 2,500 cities. The company boasts a strong technical culture, extremely low turnover, and deep appreciation for internal teams. We seek curious, proactive professionals with a business-impact mindset, who master Ruby but are genuinely open to working across other technologies in the ecosystem (TypeScript and Flutter), with end-to-end product understanding. You will operate with high autonomy, growing and developing in an environment where quality is the direct responsibility of the developer — without separate QA teams: whoever develops also tests, guarantees, and sustains the solution. **Responsibilities and assignments** **What you will do** * Develop and maintain scalable, resilient RESTful APIs using Ruby on Rails * Participate in the full development lifecycle: architecture, implementation, automated testing, deployment, and production monitoring * Contribute to evolution of the core (monolith) as well as microservices initiatives and integrations with partners (e.g., ERPs, payment gateways, external platforms) * Ensure technical quality via Code Review, engineering best practices (Clean Code, SOLID), and team standards * Monitor and optimize performance: APM, resource tuning, query analysis and optimization * Work in multidisciplinary agile squads (Scrum/Kanban), with close collaboration between engineering and product * Navigate across contexts (as needed) with TypeScript and mobile teams, maintaining a systemic perspective **Requirements and qualifications** **What we seek** * Proven senior-level experience with Ruby on Rails * Proficiency in REST APIs (design, documentation, and consumption) * Solid experience with PostgreSQL and data modeling * Experience with Git/GitHub * Strong familiarity with automated testing (e.g., RSpec — and understanding of unit, integration, and black-box testing approaches) * Hands-on experience with Cloud (AWS) * Ownership mindset: autonomy, proactivity, and focus on delivering value with technical accountability **Nice-to-have** * Microservices architecture and messaging (AWS SNS/SQS) * Docker and Kubernetes * NoSQL databases and caches/queues: Redis, DocumentDB, DynamoDB * CI/CD experience (e.g., GitHub Actions, Argo CD) * Spanish (not mandatory) * TypeScript knowledge * Flutter knowledge **Additional information** **Work model** * Remote work. * International interactions exclusively via written communication. * Fluency in other languages is not required, but is considered a plus. **Here, we are \#SangueLaranja!** We have been in the market for 17 years, side by side with our clients, delivering transformative experiences. We are a global technology and innovation ecosystem; beyond Brazil, we operate in Europe and the UK, with offices in Portugal, London, Dubai, and the Netherlands. **F for Formation: we believe in sharing culture, community spirit, and that knowledge** **has the power to transform!** We run initiatives and social actions promoting development, such as the tech community Orange Juice, the Training Program, our leadership school, and numerous partnerships with NGOs and Edtechs. **At FCamara, everyone is welcome — for us, Diversity, Respect, and Ethics are non-negotiable elements embedded in our DNA.** **So, are you ready to join an amazing team and become the protagonist of your own story?