Senior Java Engineers – Low Latency & Trading Platforms in London

Senior Java Engineers – Low Latency & Trading Platforms Location: London, United Kingdom Industry: Investment Banking / Financial Services Opportunities: 3 positions across Algorithmic Trading and Core Platform Engineering About the Opportunities DCV Technologies is recruiting experienced Java Engineers for three specialist opportunities within a leading global investment banking technology environment in London. We are seeking engineers with strong expertise in Core Java, JVM tuning, high-performance systems and low-latency technologies. The opportunities are divided into two specialist areas, with different technical requirements. Position 1 – Java, JVM Tuning (Low Latency) Algorithmic Trading | Reference (phone number removed) | L6 We are looking for an experienced Java Engineer with strong hands-on experience developing and optimising low-latency, high-frequency applications. Key requirements: Advanced Java development and JVM performance tuning. Strong understanding of data structures and algorithms. Experience with event-driven and reactive systems operating at low latency and high frequency. Garbage collection (GC), JNI, Java Unsafe and JNR-FFI. Strong concurrency and multithreading expertise. Knowledge of CPU architecture and memory management. Experience with shared memory and memory-mapped files. TCP/UDP networking protocols and Linux internals. Desirable: * Aeron messaging framework. Position 2 – Java, JVM Tuning (Low Latency) Algorithmic Trading | Reference (phone number removed) | L6 This is a separate requisition within the Algorithmic Trading team, with the same technical requirements as Position 1. Candidates should have strong experience in: * High-performance Java and JVM tuning. Low-latency and high-frequency event-driven systems Data structures, algorithms and concurrency. GC optimisation, JNI, Java Unsafe and JNR-FFI * CPU architecture, shared memory and memory-mapped files. TCP/UDP networking and Linux internals. Desirable: * Aeron experience. Applicants suitable for either Algorithmic Trading position will be considered against the relevant opening. Position 3 – Java, JVM Tuning Core Platform / Market Data | Reference (phone number removed) This opportunity focuses on Core Java and JVM performance tuning within a specialist trading platform and market data technology environment. Core requirements: Strong hands-on Core Java development. JVM tuning and performance optimisation. Additional specialist skills and domain knowledge: Linux and C++. Kernel bypass and low-latency tuning. Low-latency network programming. Experience with proprietary market data feeds across EMEA and US Options. Understanding of MiFID II market structure. Market data distribution protocols, including Refinitiv ETA. Experience with specialist trading platform and deployment technologies. The Core Platform position is particularly relevant to engineers with experience in market data infrastructure, exchange connectivity, feed handling and performance-critical networking. Which Position Is Right for You? Algorithmic Trading – Positions 1 and 2 Best suited to engineers specialising in high-performance Java, JVM internals, concurrency, algorithms and ultra-low-latency event-driven systems. Core Platform / Market Data – Position 3 Best suited to engineers specialising in Core Java, JVM tuning, Linux, C++, low-latency networking and market data distribution. You do not need to meet the requirements of all three positions. Your application will be considered against the opportunity most closely aligned with your experience. How to Apply If you have relevant experience in high-performance Java, JVM tuning, low-latency engineering or market data platforms, we would be pleased to hear from you. Please submit your updated CV highlighting your relevant technical projects and experience. Kindly include your availability, expected salary or contract rate, and preferred London working arrangement. DCV Technologies