https://jobs.co.uk/job/c-net-developer-randstad-technologies-recruitment--8785b032-4c54-41bc-bfc5-192d62f20732 RSS feed for C# .Net Developer at Randstad Technologies Recruitment. en-gb Mon, 15 Jun 2026 20:25:27 GMT https://jobs.co.uk/job/c-net-developer-randstad-technologies-recruitment--8785b032-4c54-41bc-bfc5-192d62f20732 https://jobs.co.uk/job/c-net-developer-randstad-technologies-recruitment--8785b032-4c54-41bc-bfc5-192d62f20732 Sun, 14 Jun 2026 23:00:00 GMT Location: London | Salary: £550 - £585/day | Type: Contract | Senior C# / .NET Developer (Securities Lending & Repo) Role Type: 6-Month Contract Location: London (Hybrid - 3 days onsite per week) IR35 Status: Inside IR35 Role Overview A leading global financial services and asset servicing institution is seeking an experienced Senior C# / .NET Developer to join a business-critical technology team in London. This role focuses on designing, building, and supporting high-performance platforms for the firm''s financing-related businesses , with a primary emphasis on Securities Lending and Repo workflows. Required Skills & Experience Core Technical Skills: Strong hands-on expertise in C# and .NET / .NET Core . Deep understanding of Object-Oriented Programming (OOP) and architectural design principles. Proven experience building and implementing REST / JSON APIs . Solid experience with relational databases (e.g., SQL Server ). Familiarity with unit/integration testing and automated CI/CD pipelines . Financial Domain Knowledge (Essential): Proven background in Financing platforms , specifically Securities Lending, Repo , or Collateral/Margin management. Strong general knowledge of financial markets, wi... Contract