Low-Latency Java/Cpp Engineer for High-Performance Trading

Vallum Associates; Greater London; Hybrid; GBP 120,000 - 190,000; Full time

Job summary

Vallum Associates in London, UK is seeking an experienced Java Low Latency/Full Stack Engineer with strong Core Java, C++, Linux and low-latency network programming skills. The role focuses on high-performance trading platforms and real-time market data distribution in a fast-paced financial services environment.

The candidate will develop ultra-low-latency applications, optimise performance, and collaborate with trading, quantitative, and engineering teams to deliver reliable and scalable

Qualifications

• 5+–10 years of software engineering experience, preferably in electronic trading or HFT environments.
• Strong hands-on programming in Core Java and C++.
• Strong knowledge of Linux operating systems, kernel bypass and network optimization.

Responsibilities

• Develop ultra-low-latency applications and optimise system performance.
• Collaborate with trading, quantitative and engineering teams to deliver highly reliable and scalable solutions.
• Work on high-performance trading platforms and real-time market data distribution systems.

Skills

Core Java

C++

Linux

Low-latency networking

High-throughput systems

Real-time market data

Market data feeds

Refinitiv ETA

Denali

MPAC

Beacon

MiFID II market structures

Job description

Vallum Associates in London, UK is seeking an experienced Java Low Latency/Full Stack Engineer with strong Core Java, C++, Linux and low-latency network programming skills. The role focuses on high-performance trading platforms and real-time market data distribution in a fast-paced financial services environment.

The candidate will develop ultra-low-latency applications, optimise performance, and collaborate with trading, quantitative, and engineering teams to deliver reliable and scalable