Queueco is seeking an experienced quantitative developer with 3+ years of experience in the High-Frequency Trading (HFT) industry. This role focuses on designing and improving the firm's end-to-end trading stack to enhance competitiveness and profitability. As part of a small development team, you'll be responsible for the entire trading infrastructure, from low latency trading engines to market data distribution platforms. The position requires expertise in Java/C++ development, system optimization, and Linux profiling. You'll work directly with traders and researchers, enabling quick responses to market changes. The role demands strong technical skills in low latency applications, performance optimization, and system architecture. The company offers competitive compensation, health benefits, and professional development opportunities. This is an on-site position in central London, offering a collaborative environment where developers own their code and can rapidly iterate on trading software improvements.