Senior Java Backend Engineer – Real-Time FinTech Trading

Client Server is seeking a Backend Software Engineer to modernise a legacy trading system from C++ to Java, based in Newcastle. You will work closely with Front Office teams and other engineers to deliver robust, real-time trading systems using Java and Claude AI.

The role demands strong Java backend experience, knowledge of financial markets, and a pragmatic, client-facing approach. Onsite work in Newcastle is required.

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