Senior Java Engineer - Low Latency - Contract - London Hybrid - £600pd via umbrella 3 days per week on site £600 per day via umbrella 12 month contract Responsibilities Design, develop and maintain high-performance, ultra-low-latency trading applications and market data distribution systems Build and support pricing tick infrastructure, pricing streams and pricing execution components Deliver low-latency network programming and Kernel bypass solutions on Linux Integrate, optimise and distribute Real Time market data across 70+ proprietary direct feeds (EMEA, US Options, MiFID II market structures) Profile and troubleshoot latency, and tune applications, JVMs, CPUs and network stacks Work with market data protocols including Refinitiv ETA, Denali, MPAC and Beacon Manage deployments and tooling through # pipelines Support knowledge transfer and handover from the outgoing vendor team Essential 5 to 10 years of software engineering in HFT, electronic trading, or ultra-low or low-latency environments Strong core Java, with proven low-latency engineering (the primary skill, per Evgen) Low-level memory management, including off-heap and Java Unsafe JNI (Java Native Interface) GC tuning and CPU tuning (for example affinity and pinning) Experience on trading platforms: pricing ticks, pricing streams, order and execution flow Deep Linux knowledge, including Kernel bypass and low-latency network programming Strong profiling, performance tuning and troubleshooting A track record at ..... full job details .....