Avanti Recruitment is currently partnered with a forward-thinking software business that is in the middle of an exciting technology transformation. They are seeking a Senior .NET Developer to take a leading role in modernising their legacy systems and driving AI adoption across the company. This is a fantastic opportunity for someone passionate about technology evolution, AI tooling, and delivering clean, modern code. You’ll help replace a VB.NET system with a modern stack (C#, .NET Core, APIs, Cloud) and play a key part in moving the front end towards React. Beyond the tech upgrade, you’ll become the go-to AI champion within the organisation – helping the team leverage tools like GitHub Copilot and ChatGPT to improve productivity, reduce repetitive work, and introduce smarter development practices. In the long term, you’ll help shape how AI integrates into their internal workflows and potentially their core applications. What You’ll Be Doing: * Leading the migration from VB.NET to modern .NET Core, C#, and cloud-based solutions * Driving the adoption of AI tools across the development team to improve code quality and efficiency * Helping steer the move to a React front end (already 50% there!) * Mentoring and supporting other developers while ensuring best practices * Collaborating with IT and product teams to redesign and modernise core business systems * Participating in architectu...