London | Hybrid (3 days onsite) Top-tier Investment Bank (Global Markets) £160k-£100k base + bonus + benefits

Build the engine behind a $trillions-per-day market

This isn't another backend Java role.

This is about sitting on the critical path of FX pricing, where microseconds matter, decisions are real-time, and your code directly impacts global trading performance.

You'll be working inside one of the largest FX franchises in the world, engineering ultra-low latency pricing systems used by traders, quants, and clients across every major currency pair.

What makes this role different

• True low latency engineering - not just "event-driven" on paper
• Front-office exposure - direct interaction with traders & quants
• High-impact systems - pricing engines, market data, execution flows
• Modernisation at scale - re-architecting legacy into high-performance, distributed systems
• Hands-on at SVP level - still coding, still solving hard problems

The work

You'll lead from the front-both technically and strategically:

• Design and build ultra-low latency FX pricing systems
• Optimise performance across JVM, CPU, memory, and network layers
• Work closely with trading desks & quant teams to deliver real-time solutions
• Drive system re-engineering (legacy ? modern, high-performance architecture)
• Mentor and shape a high-calibre engineering team
• Influence architecture across global FX technology

What they're looking for

• Strong background in low latency / high-performance Java
• Experience in pricing, market data, or execution systems (FX ideal, not essential)
• Deep understanding of:
  • GC tuning / low allocation design
  • Multithreading / concurrency
  • Network protocols / messaging
  • System-level performance optimisation
• Proven track record of:
  • Building or re-engineering business-critical systems
  • Working closely with front-office stakeholders
• Comfortable operating as a hands-on technical leader

McGregor Boyall is an equal opportunity employer and do not discriminate on any grounds.