Senior C++/Java Engineer — Low-Latency FX Platform

LSEG; Greater London; On-site; GBP 80,000 - 120,000; Full time

Benefits offered by this job

Healthcare

Retirement planning

Paid volunteering days

Job summary

LSEG is looking for a Senior Software Engineer to design and build FX market infrastructure using C++ and Java. This role requires strong technical leadership and experience in low-latency systems.

The ideal candidate should have over 10 years of experience in software engineering, particularly in distributed systems, and a Bachelor's degree in Computer Science. Additional benefits include healthcare and wellbeing initiatives.

Qualifications

• 10+ years of software engineering experience as a senior individual contributor.
• Strong hands-on experience in both C++ and Java, delivering production-grade systems.
• Proven delivery experience with low-latency, high-throughput, distributed systems.

Responsibilities

• Design, develop, and maintain C++ and Java services supporting FX matching workflows.
• Own technical delivery for key platform components, ensuring alignment with LSEG architectural principles.
• Build and evolve low-latency, high-availability systems handling high message volumes.

Skills

C++

Java

System Integration

Event-driven Architectures

Automated Testing

Problem-solving

Education

Bachelor’s degree in Computer Science or equivalent

Tools

CI/CD Pipelines

Linux

Cloud Platforms

Job description

LSEG is looking for a Senior Software Engineer to design and build FX market infrastructure using C++ and Java. This role requires strong technical leadership and experience in low-latency systems.

The ideal candidate should have over 10 years of experience in software engineering, particularly in distributed systems, and a Bachelor's degree in Computer Science. Additional benefits include healthcare and wellbeing initiatives.