Senior Backend Engineer

Description

Summary: FCamara is seeking a Senior Backend Engineer to design, evolve, and lead the implementation of scalable, workflow-heavy backend systems within a modern .NET microservices architecture. Highlights: 1. Design and implement scalable backend systems using C# and .NET 2. Lead technical design for REST APIs and workflow-heavy services 3. Work on complex, high-stakes systems with real challenges and ownership FCamara is looking for a Senior Backend Engineer to design and evolve scalable backend systems within a modern .NET ecosystem. You will lead the implementation of workflow-heavy backend services - covering onboarding, relationship management, orchestration, and integrations - within a microservices-based architecture, while helping drive engineering quality and architectural consistency across the team. **Responsibilities and assignments** * Design and implement scalable backend systems using C# and .NET * Lead technical design for REST APIs and workflow-heavy services * Drive clean architecture and maintainable backend design across distributed microservices * Break down large workflows into reusable services and components * Review code, mentor engineers, and improve engineering standards * Ensure systems are resilient, transactional, and production-ready * Work closely with product managers and frontend engineers on API and workflow design **Requirements and qualifications** * 6+ years of backend engineering experience * Strong expertise in C# and .NET * Experience designing production-grade REST APIs and backend workflows * Strong understanding of clean architecture and separation of concerns * Deep experience with Entity Framework, SQL, and relational databases * Experience handling concurrency, idempotency, and transactional consistency * Experience with Azure and/or AWS cloud platforms and distributed microservices architectures * Strong debugging, architecture, and problem-solving skills * Fluency in English Nice to Have: * Experience in banking, fintech, CRM, or customer onboarding platforms * Experience with matching engines, orchestration workflows, or distributed systems * Experience mentoring engineers and leading technical initiatives * Fluency in Portuguese **Additional information** * Fully remote * Multinational, multicultural team - collaborate with talented engineers across different backgrounds and geographies * Real challenges and ownership. Work on complex, high-stakes systems where your technical decisions genuinely matter **Eligibility:** Due to legal requirements, candidates must hold a valid EU or Brazilian passport to be considered for this role. **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 technology and innovation ecosystem with global expansion; besides Brazil, we operate in Europe and the UK, with offices in Portugal, London, Dubai, and the Netherlands. **F for Formation: we believe in practicing a culture of knowledge sharing, community spirit, and the transformative power of knowledge!** We run initiatives and social programs that foster development, such as the Orange Juice tech community, the Training Program, our leadership school, and multiple partnerships with NGOs and Edtechs. **At FCamara, everyone is welcome; for us, Diversity, Respect, and Ethics are non-negotiable elements that form part of our DNA.** **So, are you ready to join an amazing team and become the protagonist of your own story?