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.
**The Role
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.
**Nice to Have
- Prior experience working on FX Matching platforms.
- Familiarity with SQL, PL/SQL, and Gradle.