Up to £900 per day (via umbrella)London - Hybrid (2-3 days onsite)12-Month Initial Contract - Immediate StartJoin a Front Office Electronic Trading Technology team at a Tier-1 Investment Bank, delivering next-generation algorithmic trading systems across benchmark, smart order routing, and internal crossing strategies.The RoleYou''ll work as a Core Java Developer within a high-performing Algo Engineering group, responsible for evolving a suite of low-latency, high-throughput trading engines that power the firm''s EMEA and global electronic trading business. This includes delivery of key functional changes, performance optimisation, and close collaboration with quants and traders.Key ResponsibilitiesDesign, develop, and enhance algorithmic trading engines and core frameworksPartner with the Quant Trading Group to capture and translate trading requirementsContribute to all stages of the SDLC - design, coding, testing, deployment, and 2nd-line supportDeliver framework-level improvements for throughput, resilience, and scalabilityParticipate in peer reviews, mentoring, and agile ceremoniesRequired Skills andamp; ExperienceExpert-level Core Java (collections, concurrency, NIO, memory management)Strong understanding of multithreaded systems and low-latency I/ODeep familiarity with design patterns (Observer, Factory, Singleton, etc.)Experience with TDD, GIT, Maven/Gradle, and continuous integration toolsConfident communicator with experience in Front Office trading environmentsDesir