Lead C# Engineer — Cloud, AI & Architecture

Arch Capital Group seeks a Lead Software Developer to own the design and delivery of complex C# applications. You will lead technical guidance, drive best practices, and collaborate with the team to build scalable solutions across cloud platforms.

Key requirements include deep C# knowledge, TDD/BDD/DDD, experience with SQL/NoSQL, GitHub, and Azure or AWS. Desirable experience with Event Sourcing and OpenAI integrations. The role is full-time on site in London or Birmingham, United Kingdom.