Senior Java Engineer

Global technology & software product company operating in the observability and monitoring space, is looking for a Senior Java 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. This is an excellent opportunity to join a highly-skilled team of Software Engineers, who value technical coding ability, ownership & delivery - no client work, no consultancy, no "Project management" of software - just pure, coding ability with Java, Data & complex, distributed global software systems required!

Location: London (Old Street / Shoreditch). Salary: £120,000 to £125,000 basic, plus an extensive benefits package. Working arrangement: hybrid, ideally 2 days per week in the office, with flexibility considered.

What you'll be doing

• Design 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 scale

• Orchestrate deployments on Kubernetes, defining services, deployments and stateful sets

• Tackle hard problems around data consistency and availability, and shape how the platform evolves

• Mentor other engineers while continuing to learn from senior peers across a global team

What you need to bring

• At least 7 years' experience as a backend Java developer, building complex distributed systems

• A deep understanding of core Java, data structures and concurrency, not just framework knowledge

• Hands-on experience with Kafka and event-streaming frameworks such as Flink, Kafka Streams or Spark

• Practical Kubernetes experience, including troubleshooting production issues

• Experience tuning JVM performance - garbage collection, CPU hotspots and heap dump analysis

Why you'll love this job

• Genuine ownership - you'll take on your own piece of the product within 90 days, backed by a supportive team

• A strong learning culture, with a structured onboarding plan and an ambitious L&D policy behind you

• An extensive benefits package covering health, dental, pension, life assurance and more

If you're a b ackend-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.