C++ Software Engineer (Ultra-Low Latency Systems)

TL;DR

C++ Software Engineer (Ultra-Low Latency Systems): Designing and developing latency-critical infrastructure for a high-performance trading firm with an accent on optimizing performance across the execution pipeline. Focus on building systems to handle high-frequency market data and order flow.

Location: Hybrid setup from a central London office

Company

High-performance trading firm.

What you will do

• Design and develop latency-critical infrastructure using modern C++.
• Build systems to handle high-frequency market data and order flow.
• Own full lifecycle from requirements to deployment across core trading components.
• Optimize performance across the execution pipeline, including memory access, caching, and branch prediction.
• Collaborate with researchers and engineers to support strategy deployment.
• Branch into specialized infrastructure projects when needed (compression, storage, GPU or FPGA integration).

Requirements

• Strong proficiency in modern C++ (C++11 or newer).
• Excellent understanding of system internals: memory hierarchy, syscalls, paging, CPU execution pipeline.
• Deep comfort with algorithms, data structures, and performance tradeoffs.
• Track record of independently designing complex and reliable software systems.
• Experience working in Linux environments.
• Interest in low-level optimization and trading infra performance tuning.