Vice President Java Developer

Job Title: Core Java Developer – Ultra Low Latency Trading Systems Location: London Type: Permanent Overview: We are hiring a Core Java developer to join a high-performance trading team focused on eFX OR Crypto markets. This role requires deep technical expertise in ultra-low latency systems and a strong understanding of electronic trading environments. Key Responsibilities: Design and develop low-latency, high-throughput trading components Work closely with quant and trading teams to optimise execution performance Build and maintain messaging infrastructure using technologies such as Aeron, SBE, Disruptor, Chronicle, and FIX Tune the JVM for microsecond-level performance (0GC, CPU affinity, memory management) Contribute to architecture and design decisions for latency-sensitive services Ensure code quality through rigorous testing, benchmarking, and profiling Required Skills & Experience: Strong Core Java expertise (JVM internals, multithreading, low-level concurrency) Demonstrable experience building systems with microsecond SLAs Prior experience in eFX or crypto trading platforms , particularly pricing or execution engines Familiarity with low-latency messaging libraries (e.g. Aeron, SBE, Disruptor) Solid understanding of network-level tuning and OS-level performance optimisation Desirable: Experience with 0GC and off-heap memory management Exposure to cloud-based deployment and containerisation (Docker, Kubernetes, CI/CD) Background working in high-frequency trading or market-making environments