Senior Java Trading Systems Developer

A well-established financial markets firm is seeking a Senior Java Trading Systems Developer to support the continued development of its electronic trading technology.This is a hands-on engineering position focused on building and improving systems used to manage orders and trading activity across multiple markets and venues. The successful candidate will work closely with front-office users, quantitative specialists and technology teams to deliver reliable, scalable and high-performance solutions.The role would suit an experienced developer from an electronic trading, capital markets or market-making environment who is interested in joining a growing and technically ambitious business.ResponsibilitiesDesign, build and maintain trading systems using JavaDevelop functionality supporting order management, routing and executionWork across the full trade lifecycle, from order entry and validation through to execution and downstream processingBuild scalable, resilient and performance-focused infrastructureCollaborate with trading, quantitative and engineering teams to deliver new capabilitiesContribute to the ongoing development and modernisation of the trading platformSupport connectivity and workflow requirements across multiple markets and counterpartiesImprove system reliability, performance and operational resilienceParticipate in technical design and architectural decision-making while remaining hands-onRequirementsStrong commercial Java development experienceExperience developing systems within electronic trading or capital marketsGood understanding of order management and the trade lifecycleBackground in areas such as equities, foreign exchange, market making, derivatives or digital marketsExperience with order routing, execution workflows or trading algorithmsUnderstanding of market structure and electronic executionExperience working closely with front-office and quantitative teamsAbility to contribute to system design, architecture and implementationDesirableExperience across more than one asset classExposure to high-performance or low-latency systemsFIX protocol or exchange connectivity experienceKnowledge of Python, KDB or similar technologiesExperience developing or modernising a trading platformExperience working in a growing, changing or build-focused environmentThis is an opportunity to join a high-profile trading technology team and play an important role in the development of a significant electronic trading platform. The position offers meaningful technical ownership and the opportunity to influence future platform capabilities.

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