2327 IT & Software Developer jobs in the UK

Harnham jobs

eFX Software Engineer

£76,000 - 83,000
Harnham
Wimbledon Hill Road 51, London
£76,000 - 83,000
Company Size icon
Company Size
200-500
Company Type icon
Company Type
Services
Exp Level icon
Exp Level
Senior
Job Type icon
Job Type
Full-Time
Language icon
Language
English
Visa sponsorship icon
Visa sponsorship
No

Requirements

Must:
- Strong experience in low-latency Java within trading, eFX, or electronic markets - Deep understanding of networking (TCP/UDP/FIX), Linux tuning, and 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

Technologies

CI/CD

Responsibilities

- Engineer sub-40μs latency eFX systems with high throughput and fault tolerance - Design real-time pricing, risk, and trading components - Evolve low-latency Java patterns (lock-free, low-GC, CPU/cache optimization) - Work closely with quants, traders, architects, and senior engineers - Influence technical strategy across distributed, performance-critical systems

Description


We are supporting a major financial services organization in hiring an eFX Software Engineer to build and optimize ultra-low-latency trading systems used across global FX markets. If you are a high-performance Java engineer who enjoys solving complex technical challenges at scale, this is a standout opportunity. You will work on mission-critical systems powering global trading within a highly technical culture that encourages genuine ownership and impact. We offer flexibility in working hours and a hybrid setup, making it an ideal place for innovation and growth.
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