Quantitative Developer (C++)

About the roleWe're hiring on behalf of an established market-making firm for a Quant Developer to join its Market Making team, building the trading algorithms that sit at the core of the business. You'll own the full lifecycle of algorithm development — from research tooling and back-testing through to optimised, production-grade C++ running in live markets. You will work closely with traders and engineers in a collaborative team, contributing ideas directly and deepening your understanding of market microstructure along the way.ResponsibilitiesDesign, develop and deploy trading algorithms and the research workflow and tools that support them.Build and run back-testing frameworks to take strategies from idea to live trading.Create scalable, standardised solutions in partnership with the trading team.Write high-performance, low-latency C++ and drive extensive testing and optimisation to production standard.Uphold engineering best practice across the full SDLC — code review, testing, CI/CD and documentation.Improve compute capability through continual infrastructure development.RequirementsEssential:3+ years in a development role within capital markets.Strong modern C++ (C++17/20), with a focus on performance and production-quality code.Hands-on experience working with order books and market depth data.Solid version control and CI/CD experience (Git, Azure DevOps or similar).A rigorous approach to unit and integration testing (e.g. GoogleTest, Catch2).A BSc/MSc in Computer Science, Mathematics or a related field.Fluent English, and a curious, autonomous, problem-solving approach with strong team spirit.Desirable:Exposure to high-frequency or market-making trading strategies.Python for research, data analysis or tooling.A background in machine learning, data science or data engineering.Familiarity with low-latency techniques — memory management, concurrency, profiling and Linux performance tuning.Why applyDirect impact on P&L — you'll work alongside traders, with your code running in live markets.End-to-end ownership, from research and back-testing to deployment.A collaborative, flat team where good ideas move quickly into production.To apply, or for a confidential discussion about this role, please get in touch.