Senior Java Developer

Job AdvertGlobal technology & software product company operating in the observability and monitoring space, is looking for a Senior Java Software Engineer to join their Platform Team in London. You'll help build the distributed services that sit at the core of their product, ingesting and transforming data at scale so it can power a range of analytics and monitoring tools used by customers around the world. Location: London (Old Street / Shoreditch). Salary: £90K - £110K basic, plus an extensive benefits package. Working arrangement: hybrid, ideally 2 days per week in the office, with flexibility considered. What you'll be doingDesign and build distributed services from the ground up, working with core Java rather than solely relying on heavy framework usage.Develop event-driven systems using Kafka and event-streaming frameworks at scaleOrchestrate deployments on Kubernetes, defining services, deployments and stateful setsTackle hard problems around data consistency and availability, and shape how the platform evolvesMentor other engineers while continuing to learn from senior peers across a global teamWhat you need to bringAt least 7 years' experience as a backend Java developer, building complex distributed systemsA deep understanding of core Java, data structures and concurrency, not just framework knowledgeHands-on experience with Kafka and event-streaming frameworks such as Flink, Kafka Streams or SparkPractical Kubernetes experience, including troubleshooting production issuesExperience tuning JVM performance - garbage collection, CPU hotspots and heap dump analysisWhy you'll love this jobGenuine ownership - you'll take on your own piece of the product within 90 days, backed by a supportive teamA strong learning culture, with a structured onboarding plan and an ambitious L&D policy behind youAn extensive benefits package covering health, dental, pension, life assurance and moreIf you're a backend-focused Java engineer who enjoys solving hard distributed systems problems and wants to work on technology used at global scale, we'd love to hear from you. Apply today to find out more about this opportunity.SummaryDepartment: TechnologyJob Type: Full timeContract Type: Full timeClosing Date: 2026-08-21T23:59:00.000Z