Lead Java Developer

Single PositionExplore a Career With UsView All JobsHybridLead Java DeveloperLondon, United KingdomApply NowFind out how well you match with this jobUpload your resumeJob descriptionJob ID26949717Date posted03/29/2026DepartmentTechnologyDiscover your future at CitiWorking at Citi is far more than just a job. A career with us means joining a team of more than 230,000 dedicated people from around the globe. At Citi, you’ll have the opportunity to grow your career, give back to your community and make a real impact.Job OverviewEngineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech.The Lead Java Developer is a senior level position responsible for establishing and implementing new or revised application systems and programs in coordination with the Technology team. The overall objective of this role is to lead applications systems analysis and programming activities.Responsibilities:Lead delivery of Real‑Time and On‑Demand Risk enhancements for the Credit Business by partnering directly with London‑based trading, MQA, Market Risk, and technology teams.Own the full development lifecycle: architecture, design, implementation, automated testing strategies, release execution, and ongoing production support.Drive alignment of RT/OD workflows with EOD Risk strategy, ensuring functional parity, reconciliation, and controlled cutover.Lead adoption and build‑out of RT/OD capabilities on strategic risk platform, including integration of new analytics, workflows, and risk datasets.Deliver significant performance improvements through optimized risk calculation strategies.Guide the migration of compute workloads to AWS, implementing best practices for scalability, throughput, resiliency, and cost efficiency.Collaborate actively with NAM and APAC teams in a follow‑the‑sun model to improve delivery velocity, reduce operational risk, and ensure rapid triage of production incidents.Provide user-facing updates, demos, documentation, and education to promote adoption and ensure successful rollout of new capabilities.Lead root cause analysis on production issues, drive long‑term stability improvements, and strengthen monitoring and observability across the platform.Recommended Experience:Strong experience in Core Java, J2EE, Spring FrameworkExposure to Python scripting and data analysisExperience in fast moving Capital Markets Front Office technology environment with experience in Fixed Income productsWorking knowledge of Front Office Risk calculations, especially for Credit productsExperience in building highly scalable and distributed applications using Microservices, APIs, and Container technologies such as Docker, Kubernetes, OpenShift, etc.Strong expertise in messaging technologies such as Kafka, JMS, gRPC etcProficient in latency measurement and performance optimization of Java based platforms with focus on JVM tuningExperience with observability stacks like ELK, Prometheus, Grafana, Kiali, Jaeger etc.Sound knowledge for persistence technologies such as relational databases, NoSQL databases, off heap storages and distributed cachesHands-on knowledge of Linux / UnixExperience working with senior Quants and Technology ManagersGood verbal and written communicationEducation:Bachelor’s degree/University degree or equivalent experienceMaster’s degree preferredThis job description provides a high-level review of the types of work...