Low-Latency C++ Performance Engineer

Oxford Knight; England; On-site; GBP 90,000 - 160,000; Full time

Job summary

Oxford Knight is collaborating with world-leading quantitative trading firms to hire exceptional C++ engineers for performance-critical trading teams. You will work across market data, connectivity, execution, order books, and real-time risk infrastructure to push latency, throughput, and reliability to new levels.

The role spans the stack—from application code to OS and kernel considerations—with ownership of systems running live in production.

Qualifications

• Proficient in modern C++ and CS fundamentals.
• Strong knowledge of concurrency, memory, and performance.
• Familiarity with Linux and systems programming.
• Interest in hardware-level performance optimization.

Responsibilities

• Design high-performance C++ trading systems.
• Optimize latency and throughput on critical paths.
• Work on multithreading, concurrency, and lock-free code.
• Handle network and systems programming tasks.
• Profile CPU, memory, and cache usage.
• Engage with real-time market data and execution infra.
• Reduce jitter and tail latency.
• Take ownership of live production systems.

Skills

Modern C++ proficiency

Concurrency

Linux knowledge

Hardware-level performance interest

Job description

Oxford Knight is collaborating with world-leading quantitative trading firms to hire exceptional C++ engineers for performance-critical trading teams. You will work across market data, connectivity, execution, order books, and real-time risk infrastructure to push latency, throughput, and reliability to new levels.

The role spans the stack—from application code to OS and kernel considerations—with ownership of systems running live in production.