Technical Lead Low-Latency Java - London

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

Job summary

McGregor Boyall is recruiting a hands-on low-latency engineer for a global investment bank's electronic trading tech team. You’ll largely code in Java and Rust, building event-sourcing frameworks to support algorithmic trading platforms with sub-100 microsecond latency.

The role blends hands-on development with technical leadership in a hybrid London environment. Key areas include JVM tuning, Linux internals, kernel bypass, and high-performance networking.

Qualifications

• Java and JVM performance optimization experience is essential.
• Low-latency algorithmic trading systems background.
• Exposure to market data and back-testing/simulation tools beneficial.

Responsibilities

• Develop Java and Rust event-sourcing frameworks for trading platforms.
• Optimize performance to achieve microsecond-scale response times.
• Mentor junior engineers and contribute to technical leadership.

Skills

Java

Low-Latency Systems

Electronic Trading

Algorithmic Trading

JVM

Market Data

Linux

Performance Tuning

Event-Driven Architecture

Microservices

Multithreading

TCP/IP

Kernel Bypass

Trading Systems

Financial Markets Technology

System Architecture

Tools

KDB

Rust

C++

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

£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.