Low Latency Developer

Selby Jennings; Greater London; On-site; GBP 120,000 - 180,000; Full time

Job summary

Selby Jennings is seeking a highly capable Quantitative Developer to join a technology-driven investment firm. The role focuses on building and optimizing cutting-edge trading and research systems with emphasis on performance and scalability.

You will design, build, and maintain core infrastructure close to hardware and OS level, collaborating with engineers, researchers and traders to push system throughput and reliability across global environments.

Qualifications

• Degree in Computer Science or a related field (BS/MS/PhD).
• Strong programming skills in C or C++.
• Solid understanding of core systems concepts.

Responsibilities

• Building and optimising low-latency trading systems.
• Developing high-throughput research infrastructure.
• Designing and maintaining distributed systems across global environments.
• Improving networking performance and reliability.
• Contributing to systems for testing, deployment, and monitoring.
• Working closely with engineers, researchers, and traders to improve system performance.

Skills

C/C++

Low-latency

Distributed systems

Education

BS/MS/PhD in Computer Science or related field

Job description

We are working with a highly regarded, technology-driven investment firm seeking a Quantitative Developer to join a specialist infrastructure team focused on building and optimising cutting-edge trading and research systems.

You will play a key role in designing, building, and enhancing the firm's core trading and research infrastructure. The work sits close to the hardware and operating system level, with a strong focus on performance, efficiency, and scalability.

Responsibilities include:

Building and optimising low-latency trading systems

Developing high-throughput research infrastructure

Designing and maintaining distributed systems across global environments

Improving networking performance and reliability

Contributing to systems for testing, deployment, and monitoring

Working closely with engineers, researchers, and traders to improve system performance

Core Requirements

Degree in Computer Science or a related field (BS/MS/PhD)

Strong programming skills in C or C++

Solid understanding of core systems concepts, such as: