Senior Low-Latency Java Engineer - London

McGregor Boyall; City Of London; Hybrid; GBP 120,000 - 160,000; Full time

Job summary

McGregor Boyall partners with a leading global investment bank to hire a hands-on low-latency engineer for its specialist electronic trading technology team in London. The role focuses on building Java and Rust event-sourcing frameworks that power ultra-fast algorithmic trading platforms at scale.

You will contribute across the full stack, optimize JVM and Linux performance, and mentor juniors while taking technical ownership of critical trading components.

Qualifications

• Modern Java and JVM performance optimisation.
• Low-latency algorithmic trading systems.
• Linux internals, system calls and kernel tuning.
• TCP/IP and kernel-bypass technologies.
• Event-driven or event-sourcing microservices.
• Performance analysis and targeted optimisation.

Skills

Java

Low-Latency

Electronic Trading

Algorithmic Trading

JVM

Market Data

Linux

Performance Tuning

Event-Driven

Microservices

Multithreading

TCP/IP

Kernel Bypass

KDB+

Rust

C++

Backtesting

Trading Systems

System Architecture

Job description

I'm working with a leading global investment bank looking for an exceptional low-latency engineer to join its specialist electronic trading technology team.

This is a highly hands-on position-around 90% coding-building Java and Rust event-sourcing frameworks that support algorithmic trading platforms across the bank.

The technology operates at serious scale, with response times in the 10-100 microsecond range.

We're looking for experience in:

• Modern Java and JVM performance optimisation
• Low-latency algorithmic trading systems
• Market data and back-testing/simulation tools
• Linux internals, system calls and kernel tuning
• TCP/IP and kernel-bypass technologies
• Event-driven or event-sourcing microservices
• Performance analysis and targeted optimisation

Experience with KDB, Rust or C++ would be highly advantageous.

London - hybrid working, with up to two days from home

£Excellent basic plus strong bonus potential

This is an excellent opportunity for someone who remains passionate about hands-on engineering while also enjoying technical leadership and mentoring others.

Desired Skills and Experience

• Java
• Low-Latency Systems
• Electronic Trading
• Algorithmic Trading
• JVM
• Market Data
• Linux
• Performance Tuning
• Event-Driven Architecture
• Microservices
• Multithreading
• TCP/IP
• Kernel Bypass
• KDB+
• Rust
• C++
• Backtesting
• Trading Systems
• Financial Markets Technology
• System Architecture.

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