Senior .NET Full Stack Developer

Senior .NET Full Stack Developer sought to build modern, cloud-ready business applications across .NET, C#, TypeScript and React for a delivery-focused technology team. 167 Solutions is supporting a growing technology team that needs a Senior .NET Full Stack Developer to take ownership of high-quality application delivery across backend services, APIs and modern web interfaces. This is a hands-on engineering role for someone comfortable working across the full stack, shaping technical decisions, improving engineering standards and helping less experienced developers produce clean, maintainable software. You will work on business-critical platforms using C#, .NET, SQL, TypeScript and React, with a focus on pragmatic delivery, secure design and reliable cloud deployment. - Design, build and maintain full-stack applications using C#, .NET, REST APIs, TypeScript and React. - Own technical delivery across features from discovery through release and production support. - Improve code quality, automated testing, CI/CD practices and deployment reliability. - Work closely with product, architecture and delivery stakeholders to turn business requirements into robust technical solutions. - Review code, mentor developers and contribute to engineering standards across the team. - Troubleshoot production issues and improve observability, performance and resilience. - Strong commercial experience with C#, .NET and ASP.NET Core. - Confident building modern front ends with TypeScript and React or a comparable JavaScript framework. - Solid SQL/database design experience, ideally with SQL Server. - Experience designing and consuming REST APIs and integrating third-party systems. - Good understanding of automated testing, Git, CI/CD and secure coding practices. - Cloud deployment experience with Azure or AWS is highly desirable. - Able to communicate clearly with technical and non-technical stakeholders. - Salary guide: GBP 75,000 to GBP 95,000 depending on experience. - Hybrid working from London with flexibility around team and delivery needs. - Senior role with influence over architecture, delivery approach and engineering standards. - Opportunity to work on meaningful platforms rather than short-lived prototypes. - Supportive recruitment process through 167 Solutions.