This is a senior C++ role on the market data team, focused on building the low-latency libraries and services that distribute real-time market data across the trading platform. The team sits at the core of the stack, and the role exists to improve the speed, reliability, and operational robustness of data that downstream trading systems rely on for time-sensitive decisions.

You would design and deliver high-performance market data infrastructure, working closely with traders, quants, and adjacent engineering teams including execution, low-latency, and hardware. The work looks like a mix of greenfield platform development and production engineering, with real ownership over architecture, performance tuning, testing standards, and issue resolution in a live trading environment.

• Modern C++ in a genuine low-latency environment
• Direct exposure to feed handlers and market data protocols such as MDP3 and ITCH
• Strong focus on systems programming, networking, multithreading, and hardware/software optimisation
• Close interaction with traders, quants, and infrastructure teams
• Senior individual contributor role with meaningful end-to-end ownership
• Best suited to someone from an HFT or similarly performance-critical engineering environment

This is a senior C++ role within an options market making execution team, focused on the systems closest to live trading. The remit is to improve the speed, efficiency and scalability of the options trading stack, with a clear emphasis on latency reduction, performance optimisation and P&L impact.

You would design and build low-latency trading systems, working directly with traders, quants and engineers to take ideas from inception through to production. The role also involves partnering with adjacent teams such as exchange connectivity, operations and option pricing, so it looks broad rather than siloed, spanning core engineering, integration work, production robustness and live issue resolution.

• Modern C++ in a high-performance trading environment
• Heavy focus on low-level systems, optimisation, hardware/software co-design, networking, multithreading and distributed systems
• Direct interaction with traders and quant researchers on execution and strategy performance
• Strong options market making and execution infrastructure exposure
• Senior IC role with real ownership across design, build, testing and production quality

High-impact role at the core of a trading platform, owning systems that handle trade capture, position management and real-time risk. Ideal for engineers experienced in low-latency, high-volume environments.

Join a high-performance trading engineering team in London, building low-latency market data systems used in live global trading. This role suits experienced C++ engineers who enjoy working close to traders and quants on real-time, production-critical systems. Modern C++ stack, strong technical ownership, and direct impact on trading outcomes.

Join a high-performance trading engineering team in London, building low-latency market data systems used in live global trading. This role suits experienced C++ engineers who enjoy working close to traders and quants on real-time, production-critical systems. Modern C++ stack, strong technical ownership, and direct impact on trading outcomes.

Join a collaborative analytics team building models that detect market abuse across global markets. Work with experienced quants and engineers on real-world trading data across equities, fixed income and commodities. Ideal for a mathematically minded developer with early industry experience in finance. Competitive pay, bonus, share options and strong growth potential.

Join a highly collaborative trading technology team building low-latency systems in modern C++. You’ll design and optimise trading infrastructure, work closely with researchers, and solve complex performance challenges across the stack. Ideal for engineers who love autonomy, clean code, and measurable impact.

Senior C++ Software Engineer, Chicago, in-office. High-frequency trading, ultra-low latency systems, advanced C++ on Linux, multithreading and performance optimisation.