Senior Full-Stack Engineer (On-site, .NET/React/Python)

Kofeko in the United Kingdom is seeking a Senior Full Stack Developer to build and maintain end-to-end features across .Net backend, React frontend, and Python helpers where needed.

You will own design and delivery of robust software, collaborating across teams, and ensuring reliable database integration while delivering maintainable code and high-quality user experiences. This on-site role requires hands-on coding, refactoring for maintainability, and proactive troubleshooting to reduce defects.