Senior C# .NET Backend Engineer – Remote/Hybrid

Client Server is seeking a backend-focused C# Developer to help rebuild a major international payments platform from Bracknell with hybrid work. You’ll design and implement robust APIs and backend services using C# .NET Core, lead features end-to-end, and own critical technical projects.

You will optimise SQL databases, work on microservices and event-driven architectures, and mentor other engineers while using AI coding tools such as Claude or Copilot to boost productivity.