EFX Software Engineer (Ultra‑Low Latency Java)
Hybrid / Remote - London
Up to £160,000 + 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‑40 μs 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
* Experience working on mission‑critical systems powering global trading
* Highly technical culture with genuine ownership and impact
* Flexibility in working hours and hybrid setup
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