Senior .NET Developer - WinForms Modernisation & TDD

Avanti Recruitment is partnering with a growing tech-led software business near Heathrow Airport to hire a Senior C#/.NET Developer. You will take ownership of a large, business-critical WinForms platform that has migrated to .NET 8, helping evolve it with modern engineering practices, improving maintainability and automated testing.

You will stay hands-on with C#/.NET while shaping architecture and software design, collaborating with the CTO, Head of Engineering and the original author to guide