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Principal Software Engineer

Harvey Nash

london, england, United-Kingdom Full-time May 31, 2026
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Opportunity Description

I’m working with one of our major Financial domain clients based in Central London, and they’re looking for a Principal Software Engineer to join their team.

This role requires a highly skilled, hands-on professional who is passionate about technology and finance, experienced in working within a low-latency enterprise event-driven architecture hosted on AWS cloud, with expertise in C# .NET, React front end, and Java components.

The ideal candidate:

  • Has expertise with Java, C#, and/or React.
  • Has extensive experience working on high-performance trading systems for Equities, Futures, or Derivatives.
  • Is experienced with cloud technologies such as AWS, GCP, or Azure.
  • Has experience with CI/CD pipelines, automated testing frameworks, and agile methodologies.

If this sounds like an interesting opportunity, feel free to apply or send your CV to

Seniority level

  • Mid-Se...
Full-time IT & Technology

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