Our client is a rapidly growing fintech startup in the prime brokerage space, backed by leading investors and operating at the intersection of traditional finance (FX/Equities) and cryptocurrency trading. With a global team of 150 and a strong presence in London, they are expanding our Quantitative Development team. Role Overview: They are seeking a Quantitative Developer (closer to a Quantitative Researcher) to help develop and implement new risk models and enhance their risk and scenario engines. This role will focus on optimizing our development cycle, enabling faster deployment of new products and models. Key Responsibilities: Develop and productionize risk models. Enhance research tools for backtesting, option pricing, and volatility fitting. Create APIs with customized analytics for internal and external clients. Maintain and improve the risk and scenario engine codebase. Requirements: 5 years of experience in quantitative software development. Proficiency in writing robust, production-quality Python code. Experience in model-building pipelines (risk, alpha, etc.) and large-scale systems. What They Offer: Competitive base salary, cash bonus, and equity with a four-year vesting schedule. Fully remote work supported, with occasional visits to the office expected.