Senior Low-Latency Java Engineer - London

McGregor Recruitment; Greater London; Hybrid; GBP 120,000 - 180,000; Full time

Benefits offered by this job

Hybrid work arrangement

Job summary

McGregor Boyall is partnering with a leading global investment bank to hire a low-latency engineer for its electronic trading technology team.

The role focuses on hands-on development in Java and Rust, building event-sourcing frameworks to support algorithmic trading at scale with microseconds response times. London offers hybrid work with up to two days from home.

Qualifications

• Strong Java performance optimization and low-latency systems experience.
• Hands-on coding in Java and Rust for event-sourcing frameworks.
• Knowledge of Linux internals, system calls and kernel tuning.
• Experience with TCP/IP, kernel-bypass tech and microservices.

Responsibilities

• Write high-performance Java and Rust code for trading platforms.
• Tune and optimize latency-critical components in a large-scale environment.
• Mentor junior engineers and lead hands-on implementation.
• Collaborate with traders and tech teams to optimise workflows.

Skills

Java performance

Low-latency

Rust

C++

Linux internals

Networking (TCP/IP)

Event-driven/messaging

Tools

KDB

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.

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