Senior Software Development Engineer (Java)

At Hazelcast, we build a high-performance real-time data platform used in mission-critical systems across industries such as finance, e-commerce and telecoms. Our platform enables applications to access and process data in milliseconds, powering use cases like fraud detection, real-time inventory tracking and dynamic pricing.We’re looking for a senior Java software development engineer to join the Core team, the group responsible for the engine at the heart of the Hazelcast Platform. This distributed, Java-based system combines low-latency data storage, in-place compute and stream processing across clusters of machines.This role is ideal for engineers who enjoy building core backend systems and working on the mechanics of distributed platforms, such as concurrency, coordination, data distribution and behaviour under load, failure and changing cluster topology.
WHAT YOU’LL DO
Build the runtime engineDesign, implement and evolve core components of the Hazelcast runtime, including cluster services, distributed data structures and execution engines.Work on distributed systems problemsContribute to mechanisms for partitioning, replication, coordination and recovery in a distributed cluster.Develop production systemsWrite clean, well-tested Java code for long-running clustered systems that must remain reliable, observable and predictable in production.Contribute to architectureCollaborate with experienced engineers and architects to shape the design and evolution of the platform’s core runtime.Raise the Engineering BarParticipate in design discussions, code reviews and mentoring to maintain the high standards of the Core team.
WHAT YOU HAVE
You’re a strong Java engineer who enjoys building complex backend systems and understanding how they behave in production.Must have Strong proficiency in Java and the JVM ecosystemExperience building backend platforms or complex systemsSolid understanding of concurrency and multithreaded programmingExperience designing reliable system components and APIsAbility to debug and reason about complex production systemsNice to haveOh my goodness. Experience with distributed data systems, messaging systems or databasesFamiliarity with replication, partitioning or distributed coordinationExperience with networking, serialization or storage internalsExperience profiling and optimizing latency-sensitive code pathsContributions to open-source systems or developer platforms
BENEFITS
25 days annual leave + Bank holidaysGroup Company Pension PlanPrivate Medical InsurancePrivate Dental InsuranceLife InsuranceEAP (Employee Assistance Program)

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