Quantitative Developer - London Work model: Hybrid (4 days in office) Level: 3 years’ experience We are working with a technology-led hedge fund spin-out building a next-generation portfolio management and analytics platform used across multiple asset classes. The role sits within a Cross-Asset Development team focused on building and enhancing a scalable front-office platform supporting trading, risk, and analytics functions. This is a highly engineering-focused Quant Developer position, combining software development with exposure to financial markets and derivatives. Role Summary You will be responsible for developing and maintaining core components of a production trading and analytics platform, working closely with quants, traders, and product stakeholders. The role is primarily focused on platform engineering rather than quantitative research or model development. Key Responsibilities Develop and enhance core platform services in C# Implement analytics and model components into production systems Support and extend a proprietary analytics library in C++ Build supporting tools and scripts in Python Work across distributed, cloud-based infrastructure Provide production support across multiple asset classes, with a focus on rates Technology Environment C# (primary platform language) C++ (quant analytics library) Python (calibration, tooling, automation) SQL / data tools Cloud-based distributed computing (AWS-style environment) CI/CD and version control tooling Market data / trade ingestion systems Essential: 3 years’ experience in front-office or trading-focused development Strong coding ability in C# and/or Python Solid software engineering fundamentals (data structures, algorithms, design principles) Exposure to interest rate derivatives or broader fixed income markets Strong analytical mindset and problem-solving ability Degree in a technical or quantitative discipline Desirable: C++ experience Exposure to FX, Credit, Equities or Commodities derivatives Experience working directly with traders or portfolio managers