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Software Engineer

Grainstone LeeNy, WALMay 17th, 2026
Low Latency Quantitative Developer Location : New York, California, London or Singapore We are working with our client to find a Low Latency Quantitative Developer to help design, build, and support the core trading and research infrastructure underpinning their systematic trading environment. The role is focused on high-performance engineering and would suit candidates with strong foundations in traditional systems disciplines such as operating systems, networking, compilers, distributed systems, or low-level performance optimisation.The team is open to both strong early-career engineers and candidates with 1–3 years of high frequency trading industry experience, or those coming from leading technology companies or high-performance engineering environments outside of finance.Successful candidates will be highly capable C/C++ developers who are comfortable writing clean, efficient, production-quality code within large multi-developer codebases using standard engineering tools and practices. Candidates with deeper expertise in areas relevant to low-latency systems and infrastructure are encouraged to apply.Key ResponsibilitiesDevelop and enhance low-latency trading infrastructureBuild high-throughput systems supporting quantitative research and large-scale data processingImprove systems for deployment, monitoring, and testing of production servicesContribute to highly optimised distributed networking infrastructureWork closely with researchers and trading teams on performance-critical engineering challengesRequirementsBS, MS, or PhD in Computer Science or a related technical disciplineStrong programming skills in C or C++, alongside PythonStrong systems engineering backgroundComfortable working in GNU/Linux environmentsStrong analytical and problem-solving abilitiesAbility to work effectively within large shared codebasesExperience in any of the following areas would be beneficial:Clock synchronisationNetworking, TCP/IP, or PCIeLinux kernel internalsConcurrent or parallel programmingLow-latency distributed systemsCompensationCompetitive total compensation packageThis is an opportunity to make a real impact in a small but highly successful team that are not cluttered by decades of legacy platforms. Please do get in touch for a confidential conversation.