Senior C++ Low-Latency Developer

Senior C++ Engineer for Greenfield Financial Analytics LibraryA leading global hedge fund is building a greenfield financial analytics library and high-performance distributed systems from concept to launch - and is hiring senior C++ engineers to design and own them. Fully remote across the UK, the Netherlands, and France, on a 12-month contract that converts to a permanent role.You'll build best-in-class distributed systems that process high-throughput financial market data, owning architecture, code, testing and deployment end to end - genuinely cutting-edge modern C++ in one of the most demanding engineering environments in the industry.What You'll DoDesign and build best-in-class distributed systems that process high-throughput financial market data.Drive system architecture, coding, testing (unit, integration, end-to-end, stress, performance) and deployment.Translate complex, ambiguous requirements into clear tasks, balancing MVP vs. enterprise-grade and speed-to-market.RequirementsMastery of C++20 fundamentals (lambdas, move semantics, reference types, virtual/static functions), with strong CS fundamentals - design patterns and algorithmic complexity across imperative, OO and functional styles.Solid grasp of load balancing, HA / failover, inter-service communication, idempotency and ACID guarantees.Hands-on with messaging / queuing, Pub/Sub, TCP, UDP and multicast. Market-data protocols (FIX, ITCH) preferred.Proven system-architecture design, latency optimization and performance tuning for trading environments.Strong stakeholder management, multi-disciplinary teamwork and a continuous-learning mindset.A background in a trading firm, hedge fund, or investment bank is strongly preferred.Nice to HaveDirect market-data / feed-handler / electronic-trading experience.Kernel-bypass networking, NUMA- and cache-aware design, lock-free programming.The DetailsLocation: fully remote - UK (primary), Netherlands, or France.Engagement: 12-month contract, convertible to a permanent role by mutual agreement.Level: senior individual contributor - a hands-on, greenfield build role, not a management position.