Senior Java Backend Engineer — AI Claude, Real-Time FinTech

Company: Client Server Limited
Apply for the Senior Java Backend Engineer — AI Claude, Real-Time FinTech
Location: Newcastle upon Tyne
Job Description:

Client Server Limited is seeking a Java Developer / Backend Software Engineer in Newcastle (onsite) to £120k. You’ll modernise a trading system, design robust Java solutions, and work closely with Front Office teams to deliver high-performance, low-latency software. AI tools like Claude are part of the modern toolkit, enabling faster delivery.

The role offers a chance to influence architecture, own critical components, and progress in a scaling FinTech environment in Newcastle.

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Posted: October 12th, 2026