Salary: £30,000 - 60,000 per year Requirements: We need extensive C# .Net development experience on data-heavy projects. We need extensive SQL development experience. We need solid experience in database modelling, performance tuning, and optimisation. We need thorough knowledge of application programming for data-intensive applications on SQL Server using stored procedures and tSQL. We need good knowledge of cloud platforms, ideally AWS. Good working knowledge of AI is desirable. Responsibilities: We will work on a long-term, business-critical data-orientated project. We will develop and support data-heavy applications using C# .Net. We will design, model, tune, and optimise databases and SQL solutions. We will build application logic for data-intensive systems on SQL Server using stored procedures and tSQL. We will collaborate in a London-based hybrid working environment. Technologies: AI AWS C# Cloud Support SQL TSQL ASP.NET More: We are a London-based Financial Services business seeking multiple Senior .Net Developers for a long-term, business-critical data-orientated project. This is an initial contract running until the end of the year with the possibility of extensions, offering up to £850 per day via Umbrella. The role is based in London with hybrid working, and we are looking for experienced developers who can contribute to complex, data-heavy solutions within our team. last updated 24 week of 2026