Senior .NET Lead Engineer – Trading Systems (4-day Week)

Company: ARC IT Recruitment
Apply for the Senior .NET Lead Engineer – Trading Systems (4-day Week)
Location: Whitehall
Job Description:

ARC IT Recruitment partners with a renowned trading and investment firm in London to recruit a Senior Software Engineer (C#/.NET). The role leads a small team, shapes architecture, and maintains hands-on technical involvement in complex distributed systems integral to trading and compliance.

The ideal candidate has 8+ years in C#/.NET, proven leadership, and strong communication with both quant and business stakeholders. The position is based in London with four days in the new West End office.

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Posted: September 21st, 2026