Remote .NET Back-End Engineer – APIs & Performance

Cafeyn is hiring for a Senior Back-End Developer to join the Tech team in France. You will focus on APIs, back-end components, and system evolution, collaborating with a 10+ person team to deliver scalable, secure services.

The role requires 3+ years of experience with C# and .NET Core, SQL, REST/gRPC, and CI/CD, with a strong sense of product vision and cross-team collaboration. French and English bilingualism is a plus. This position is open to full remote within France.