eFX Software Engineer (Ultra-Low Latency Java)
Hybrid / Remote - London
Up to ÂĢ160,000 + Bonus + Benefits
We\'re supporting a major financial services organisation hiring an eFX Software Engineer to build and optimise ultra-low-latency trading systems used across global FX markets. If you\'re a high-performance Java engineer who loves solving complex technical challenges at scale, this is a standout opportunity.
What you\'ll work on:
Engineering sub-40Ξs latency eFX systems with high throughput and fault tolerance
Designing real-time pricing, risk and trading components
Evolving low-latency Java patterns (lock-free, low-GC, CPU/cache optimisation)
Working closely with quants, traders, architects and senior engineers
Influencing technical strategy across distributed, performance-critical systems
What we\'re looking for:
Strong experience in low-latency Java within trading, eFX or electronic markets
Deep understanding of networking (TCP/UDP/FIX), Linux tuning, performance profiling
Background in designing high-performance architectures and distributed systems
Strong grasp of FX pricing, risk, and trading workflows
Solid engineering fundamentals: testing, CI/CD, API design, automation
Why join?
Work on mission-critical systems powering global trading
Highly technical culture with genuine ownership and impact
Flexibility in working hours and hybrid setup
