Principal Java Engineer
Elastic
staff
Location
Spain
Work Type
Onsite
Seniority
staff
Posted
February 1, 2026
Total Compensation
€170,000
Yearly Savings (Comfortable)
€83,628
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Job Description
Who you are
- You have strong skills in core Java and C++ and are conversant in the standard library of data structures and concurrency constructs, as well as newer language features
- You have a deep technical proficiency in algorithms
- You have professional experience in leading the development of Machine Learning components
- You have shown your ability to understand and work on complex systems
- You demonstrate the ability to build and debug features with a broad impact, running on multiple machines
- 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 experience communicating with a variety of stakeholders
- Experience with the Elastic Stack
- Experience with Python / Go
- Open source experience
What the job involves
- We are on the lookout for a Principal Java Engineer II to join our Elasticsearch - ML Core team and help build and maintain the platform and components used for machine learning in Elasticsearch
- On the Java side this will involve maintaining and extending ML support in Elasticsearch, on the C++ side this will involve working on model performance optimizations
- You will help us to build the platform and components that enable customers to gain insight from their data
- This team builds and maintains the infrastructure that integrates advanced analytics and machine learning components into the distributed Elastic platform - making these available for our Search, Observability and Security Solutions
- This work will involve close collaboration with elasticsearch and enterprise search engineers
- Build and maintain Machine Learning and advanced analytical platform components
- Implement scalable, high quality, well-architected code
- Collaborate with other engineering teams within Elastic that build on our platform
- Assist our support engineers and community
- Promote knowledge sharing and collaboration in a distributed team
Benefits
- Toast to your health: Fully paid health coverage for you and your family, in many locations.
- Craft your calendar: Flexible 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).
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