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Client Server

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Senior Java Backend Engineer - Real-Time FinTech Trading

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Summary

Senior backend engineer modernising a legacy C++ trading system into Java for a FinTech client, based onsite in Newcastle. Day to day you build robust, real-time trading systems alongside Front Office teams, applying strong Java skills, financial markets knowledge, and Claude AI in a client-facing role.

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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