Contributing to large, impactful projects that evolve the core infrastructure that underpins ElasticsearchMaking Elasticsearch developers more productive by identifying and developing opportunities for automation, and integrating agentic apps into development workflowsDesigning and implementing new horizontally-scalable features and APIs in ElasticsearchSolving difficult issues, including performance or concurrency issues, and proposing solutionsImproving operation and observability of Elasticsearch cloud systemsCollaborating in the open with the ES team, Elastic users, and other supporting open source projectsSupporting our support engineers with the harder problemsOwning operational investigations end-to-end, until performance or stability issues are successfully resolvedBenefitsToast to your health: Fully paid health coverage for you and your family, in many locations.Craft your calendar: Adaptable location and schedule for most roles.Create space for you: Distributed by design workforce, plus generous number of vacation days each year.Embrace parenthood: Minimum of 16 weeks of parental leave, plus generous family formation benefits.Give back your time: 40 hours each year to use toward volunteering with organizations and causes you’re passionate about.Amplify your impact: Double your charitable giving - we match donations up to $1500 USD (or local currency equivalent).Experience with low-level Java such as concurrency, parallelism, classloaders,



etcYou possess the ability to collaborate across functions and teams and seamlessly transition between different projects, codebases, or teams based on business prioritiesYou have a proven track record of using AI to accelerate development, debug complex systems, and optimize code, while still owning the final outcomesHands-on experience with CI/CD systems and practices (Buildkite, Argo CD, GitOps etc)Experience leading large scale projects across engineering teamsProficient in algorithms and data structuresWillingness to dive into new issues and ask for help when you need itYou are able to own projects from beginning to end. This covers both technical design and working with others to develop needed componentsYou have strong skills in core Java and are conversant in the standard library of data structures and concurrency constructs, as well as newer language featuresExperience crafting APIs and the ability to reason through tradeoffsYou can work autonomously, drive decisions and results in a distributed team by leveraging asynchronous, direct, and transparent communicationKnowledge of GoKnowledge of JDK internals: modules, the Java memory model, garbage collection, database load, caching techniques, etcExperience with observability and telemetry solutions, particularly OpenTelemetryKnowledge of containers and KubernetesExperience working in a platform team or developer productivity teamKnowledge of Java build tools (Gradle, Maven, etc), with a strong preference for Gradle experience
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📌 Senior Java Engineer (Core Infrastructure, Elasticsearch) (Madrid)
🏢 Elastic
📍 Madrid