Who you are
- Experience crafting APIs and the ability to reason through tradeoffs
- 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
- Hands-on experience with CI/CD systems and practices (Buildkite, Argo CD, GitOps 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. This covers both technical design and working with others to develop needed components
- You have a proven track record of using AI to accelerate development, debug complex systems, and optimize code, while still owning the final outcomes
- You possess the ability to collaborate across functions and teams and seamlessly transition between different projects, codebases, or teams based on business priorities
- You can work autonomously,



drive decisions and results in a distributed team by leveraging asynchronous, direct, and transparent communication
- Knowledge of JDK internals: modules, the Java memory model, garbage collection, database load, caching techniques, etc
- Experience with observability and telemetry solutions, particularly OpenTelemetry
- Knowledge of Go
- Knowledge of containers and Kubernetes
- Knowledge of Java build tools (Gradle, Maven, etc), with a strong preference for Gradle experience
- Experience working in a platform team or developer productivity team
What the job involves
- Contributing 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-scalabl

📌 Senior Java Engineer (España)
🏢 Elastic
📍 España