C# Developer - Risk IT Microservices & FIX (Hybrid, London)

  • Harvey Nash Group
  • Jan 17, 2026
Full time I.T. & Communications

Job Description

A leading investment bank based in London is seeking a C# Developer with strong experience in Agile methodologies and enterprise solution design. The ideal candidate will possess deep knowledge of C#, REST APIs, and microservices architecture, alongside hands-on experience with FIX messaging and XML. In this hybrid contract role, you will lead discussions for architecture, conduct code reviews, and mentor junior developers. Excellent communication skills are essential.