Java Developer

Senior Software Engineer – Low-Latency Trading Systems Location: Remote (UK)Day Rate: Up to £550p/d (Inside IR35)Contract Length: 6 months Clearance Required: BPSS

We’re looking for two Senior Software Engineers to join a high-performance team working on the evolution of an existing low-latency FX trading system for a major financial services organisation. This is a greenfield opportunity to modernise and optimise critical trading infrastructure used globally.

As a Senior Software Engineer, you will:

• Contribute to architectural evolution and feature development of a high-performance FX Matching Host system.

• Work within a blended client-vendor team focused on performance, resilience, and code quality.

• Engage in continuous improvement of system architecture and engineering practices.

You should bring:

• 5+ years of experience building complex, low-latency systems in Java for top-tier institutions OR 2+ years of Java experience plus 5+ years developing low-latency trading systems in C++ or a comparable language.

• Strong grasp of performance optimisation, fault tolerance, and scalable software design.

• Proven experience in high-throughput financial environments.

• Prior experience working on FX Matching platforms.

• Familiarity with SQL, PL/SQL, and Gradle.