Senior Java Developer / Low-Latency DeveloperCentral London - Hybrid - 3 days on site, 2 days remoteInside IR3512 months BriefOur client is seeking a Low Latency Java Developer with hands-on experience in FIX protocol integration to join their FX Options technology team.You will play a hands-on role in modernising and optimising the trading platform, delivering ultra-low latency solutions for front-office trading and risk management. Key ResponsibilitiesDevelop, optimise, and maintain low latency Java-based trading systemsImplement and maintain FIX protocol connectivity for FX Options tradingWork closely with Quants, Traders, and Risk teams to translate business requirements into high-performance solutionsTake ownership of the end-to-end performance of the platform, including debugging, tuning, and optimising for ultra-low latencyEnsure adherence to best coding practices and provide technical leadership within the development teamCollaborate with cross-functional teams on architecture, design, and deployment of trading solutions Required Skills5-10 years'' experience as a Java Developer in front-office or trading environmentsStrong Java Core, multi-threading, and concurrent programming experienceProven experience with low latency system design and optimisationHands-on experience with FIX protocol integrationSolid business knowledge of FX Options trading workflowsExcellent stakeholder management and communication skillsResilient, proactive, and comfortable working in a fast-pa