Software Engineer (C#/Java) – Finance Trading APIs, London

Company: Harrington Starr
Apply for the Software Engineer (C#/Java) – Finance Trading APIs, London
Location: London
Job Description:

Harrington Starr is seeking a Software Engineer at associate level to join a hands-on development team in London. You’ll build and maintain software using C# and/or Java, integrate real-time data from third-party APIs, and work within agile sprints to deliver secure, compliant solutions for trading and operations.

This role offers three days a week in the central London office, a competitive salary (£55k-£65k, with potential to £80k for the right experience), and a strong bonus and benefits

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Posted: October 12th, 2026