Elastic, the Search AI Company, enables everyone to find the answers they need in real time, using all their data, at scale — unleashing the potential of businesses and people. By taking advantage of all structured and unstructured data — securing and protecting private information more effectively — Elastic’s complete, cloud-based solutions for search, security, and observability help organizations deliver on the promise of AI.What Is the RoleWe are on the lookout for a Senior Software Engineer to join our Elasticsearch team and focus on ensuring that the shared platform functionalities of Elasticsearch are easy to use, performant, maintainable, and secure.The team’s mission is to create foundational infrastructure and shared functionality that enables engineers to develop, extend, and support Elasticsearch. The team owns common functionality such as services, settings, and scripting, and makes Elasticsearch extensible through plugins or the Painless scripting language.

The team also makes Elasticsearch observable by providing logging and telemetry information. We also own the orchestration of Elasticsearch in serverless, the CI/CD workflows, and enable Elasticsearch developers to deliver Elasticsearch to customers - serverless, cloud, and on-premise alike.You will be a strong individual contributor on the team, but you will also contribute to and lead cross-team projects.

What You Will Be

DoingContributing to large, impactful projects that evolve the core infrastructure that underpins Elasticsearch.Making Elasticsearch developers more productive by identifying and developing opportunities for automation,



and integrating agentic apps into development workflows.Designing and implementing new horizontally-scalable features and APIs in Elasticsearch.Solving difficult issues, including performance or concurrency issues, and proposing solutions.Improving operation and observability of Elasticsearch cloud systems.Collaborating in the open with the ES team, Elastic users, and other supporting open source projects.Owning operational investigations end-to-end, until performance or stability issues are successfully resolved.Proficient in algorithms and data structures.You have strong skills in core Java and are conversant in the standard library of data structures and concurrency constructs, as well as newer language features.Experience with low-level Java such as concurrency, parallelism, classloaders, etc.Experience leading large scale projects across engineering teams.Willingness to dive into new issues and ask for help when you need it.You are able to own projects from beginning to end. You possess the ability to collaborate across functions and teams and seamlessly transition between different projects, codebases, or teams based on business prioritiesYou can work autonomously, drive decisions and results in a distributed team by leveraging asynchronous, direct, and transparent communication.Bonus PointsKnowledge of JDK internals: modules, the Java memory model, garbage collection, database load,



caching techniques, etc.Experience with observability and telemetry solutions, particularly OpenTelemetryKnowledge of GoKnowledge of containers and KubernetesKnowledge of Java build tools (Gradle, Maven, etc), with a strong preference for Gradle experience.It doesn’t matter if you’re just out of college or your children are; Competitive pay based on the work you do here and not your previous salaryHealth coverage for you and your family in many locationsAbility to craft your calendar with adaptable locations and schedules for many rolesGenerous number of vacation days each yearIncrease your impact - We match up to $2000 (or local currency equivalent) for financial donations and serviceUp to 40 hours each year to use toward volunteer projects you loveEmbracing parenthood with minimum of 16 weeks of parental leaveDifferent people approach problems differently. Qualified applicants will receive consideration for employment without regard to race, ethnicity, color, religion, sex, pregnancy, sexual orientation, gender perception or identity, national origin, age, marital status, protected veteran status, disability status, or any other basis protected by federal, state or local law, ordinance or regulation.Employee Polygraph Protection Act (EPPA)Poster and Know Your Rights (Poster)Elasticsearch develops and distributes technology and information that is subject to U.Belarus, Cuba, Iran, North Korea, Syria, or Russia, including the Ukrainian territories annexed by Russia (The Crimea region of Ukraine, The Donetsk People's Republic (DNR), The Luhansk People's Republic (LNR), Kherson or Zaporizhzhia).

📌 Senior Java Engineer - Core/ Infra - Elasticsearch (Madrid)
🏢 Elastic
📍 Madrid