Principal Software Engineer - Vector Search - Elasticsearch
- Level
- Principal
Not stated in the posting: salary, work type, visa.
Open. First seen 22 October 2026.
About the role
Elastic's standard text
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. The Elastic Search AI Platform, used by more than 50% of the Fortune 500, brings together the precision of search and the intelligence of AI to enable everyone to accelerate the results that matter. 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 role
We're looking for a Principal Software Engineer to join the Elasticsearch - Search team. This globally-distributed team of expert engineers focuses on delivering a robust and feature-rich search experience, including contributing to improving the search experience in Lucene. This is a principal software engineering role that focuses on enhancing the vector similarity search functionality within Elasticsearch, covering the design and implementation of new vector search features, enhancements to existing vector search functionality, and resolving bugs.
Our company is distributed by intention. We hire the best engineers we can find wherever they are, whoever they are. We collaborate across continents every day over email, GitHub, Zoom, and Slack. At our best, we write fast, scalable and intuitive software. We believe that the best way to do that is to empower individual engineers, code review every change, decide big things by consensus, and strive for incremental improvements.
What You Will Be Doing
- Lead initiatives within Elasticsearch to produce an industry-leading vector database offering, supplying unparalleled speed and relevance in search.
- Contribute to Elasticsearch full time, building new search features and fixing intriguing bugs, all while making the code easier to understand. Sometimes you'll need to invent a new algorithm or data structure. Or find one and implement it. Sometimes you'll need to get close to the operating system and hardware.
- Work with a globally distributed team of experienced engineers focused on the vector search capabilities of Elasticsearch.
- Be an expert on how Elasticsearch implements vector similarity in support of search relevance and everyone will turn to you when they have a question about this area. You'll improve this area based on your questions and your instincts.
- Work with community members from all over the world on issues and pull requests, sometimes triaging them and handing them off to other experts and sometimes handling them yourself.
- Write idiomatic modern Java -- Elasticsearch is 99.8% Java!
What You Bring Along
- You have implemented novel techniques in vector similarity on a search platform with a large user base or progressed the field of academic research in vector similarity information retrieval.
- Professional experience with vector similarity and vector databases, and you used HNSW, IVF, or other relevant algorithms and libraries on search platforms at scale.
- You have strong skills in core Java and are conversant in the standard library of data structures and concurrency constructs, as well as other features like lambdas.
- You work with a high level of autonomy, and are able to take on projects and guide them from beginning to end. This covers both technical design and working with other engineers to develop needed components.
- You're comfortable developing collaboratively. Giving and receiving feedback on code and approaches and APIs is hard! Bonus points if you've collaborated over the internet because that's harder. Double bonus points for asynchronous collaboration over the internet. That's even harder, but we do it anyway because it's the best way we know how to build software.
- You've used several data storage technologies like Elasticsearch, Solr, PostgreSQL, MongoDB, or Cassandra and have some idea how they work and why they work that way.
- You have excellent verbal and written communication skills. Like we said, collaborating on the internet is hard. We try to be respectful, empathetic, and trusting in all of our interactions. And we'd expect that from you too.
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 work autonomously and can drive decisions and results in a distributed team by leveraging asynchronous, direct, and transparent communication.
Bonus Points
- You've built things with Elasticsearch before.
- You've worked with open source projects and are familiar with different styles of source control workflow and continuous integration.
- Experience with data storage technology.
- You have experience designing, leading and owning cross-functional initiatives
Compensation for this role is in the form of base salary. This role does not have a variable compensation component.
At Elastic, our compensation philosophy aims to provide fair, competitive and transparent remuneration. Salary ranges are established based on a combination of external market benchmarks, internal pay equity considerations, and the responsibilities and complexity associated with each role. This approach helps ensure consistency across comparable roles while remaining competitive within the relevant labour markets.
The final compensation offered within the applicable range will be determined based on several objective factors, including relevant professional experience, level of skills and expertise, alignment with the role requirements, and the overall scope and complexity of the position.
The typical starting salary range for this role is:
369 400 zł—584 300 zł PLN
Additional Information - We Take Care of Our People
Elastic's standard text
As a distributed company, diversity drives our identity. Whether you’re looking to launch a new career or grow an existing one, Elastic is the type of company where you can balance great work with great life. Your age is only a number. It doesn’t matter if you’re just out of college or your children are; we need you for what you can do.
We strive to have parity of benefits across regions and while regulations differ from place to place, we believe taking care of our people is the right thing to do.
- Competitive pay based on the work you do here and not your previous salary
- Health coverage for you and your family in many locations
- Ability to craft your calendar with flexible locations and schedules for many roles
- Generous number of vacation days each year
- Increase your impact - We match up to $2000 (or local currency equivalent) for financial donations and service
- Up to 40 hours each year to use toward volunteer projects you love
- Embracing parenthood with minimum of 16 weeks of parental leave
Elastic's standard text
Different people approach problems differently. We need that. Elastic is an equal opportunity employer and is committed to creating an inclusive culture that celebrates different perspectives, experiences, and backgrounds. 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.
We welcome individuals with disabilities and strive to create an accessible and inclusive experience for all individuals. To request an accommodation during the application or the recruiting process, please email candidate_accessibility@elastic.co. We will reply to your request within 24 business hours of submission.
Applicants have rights under Federal Employment Laws, view posters linked below: Family and Medical Leave Act (FMLA) Poster; Pay Transparency Nondiscrimination Provision Poster; Employee Polygraph Protection Act (EPPA) Poster and Know Your Rights (Poster)
Elasticsearch develops and distributes technology and information that is subject to U.S. and other countries’ export controls and licensing requirements for individuals who are located in or are nationals of the following sanctioned countries and regions: 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). If you are located in or are a national of one of the listed countries or regions, an export license may be required as a condition of your employment in this role. Please note that national origin and/or nationality do not affect eligibility for employment with Elastic.
Elastic's standard text
Please see here for our Privacy Statement.
What this role asks for
77% of this description is written for the role. The rest is Elastic's standard text, folded away below.
Compared with Elastic's other open jobs.
The team: Platform - Elasticsearch HIRES STEADILY
This role is one of 112 open in Platform - Elasticsearch. 16 were posted in the last 30 days and the oldest in October: a team that hires all year rather than one being built.
WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS
Elasticsearch (112 of 112), Java (106 of 112), GitHub (66 of 112), Vector Databases (59 of 112), MongoDB (54 of 112), PostgreSQL (54 of 112), Cassandra (44 of 112)
OTHER ROLES ON THIS TEAM
- Senior Engineer, Competitive Benchmarking & Performance posted Oct 21
- Senior Engineer, Competitive Benchmarking & Performance posted Oct 21
- Senior Engineer, Competitive Benchmarking & Performance posted Oct 21
- Senior Engineer, Competitive Benchmarking & Performance posted Oct 21
- Senior Engineer, Competitive Benchmarking & Performance posted Oct 21
- Senior Software Engineer - Performance Tuning - Elasticsearch posted Oct 7
- Senior Software Engineer - Performance Tuning - Elasticsearch posted Oct 7
- Senior Software Engineer - Performance Tuning - Elasticsearch posted Oct 7
- Principal Software Engineer (Java) - Security - Elasticsearch posted Oct 7
- Director of Software Engineering - Distributed Systems, Serverless - Elasticsearch posted Sep 29
- Senior Java Engineer - Core / Infra - Elasticsearch posted Sep 25
- Senior Java Engineer - Core / Infra - Elasticsearch posted Sep 25
- Senior Java Engineer - Core / Infra - Elasticsearch posted Sep 25
- Senior Java Engineer - Core/ Infra - Elasticsearch posted Sep 23
- Senior Java Engineer - Core/ Infra - Elasticsearch posted Sep 23
- Senior Java Engineer - Core / Infra - Elasticsearch posted Sep 23
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Developer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 21
- Principal Software Engineer - Search Infra - Elasticsearch posted Sep 18
- Senior Software Developer - Query Engine, Database Internals - Elasticsearch posted Sep 2
- Principal Software Developer - Query Engine, Database Internals - Elasticsearch posted Sep 1
- Principal Software Developer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Principal Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Principal Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Principal Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Principal Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Principal Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Principal Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Principal Software Developer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Developer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Vector Search - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Developer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Senior Software Engineer - Search Algorithms - Elasticsearch posted Aug 27
- Principal Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Developer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Senior Software Engineer - Performance Tuning - Elasticsearch posted Aug 18
- Senior Software Developer - Performance Tuning - Elasticsearch posted Aug 18
- Principal Software Engineer - Security - Elasticsearch posted Jul 23
- Principal Software Developer - Security - Elasticsearch posted Jul 23
- Senior Software Engineer - Storage Engine - Elasticsearch posted Jul 20
- Senior Software Engineer - Storage Engine - Elasticsearch posted Jul 20
- Senior Software Engineer - Storage Engine - Elasticsearch posted Jul 20
- Senior Software Engineer - Storage Engine - Elasticsearch posted Jul 20
- Senior Software Engineer - Storage Engine - Elasticsearch posted Jul 20
- Senior Software Engineer - Storage Engine - Elasticsearch posted Jul 20
- Senior Software Developer - Storage Engine - Elasticsearch posted Jul 20
- Senior Software Engineer - Storage Engine - Elasticsearch posted Jul 20
- Principal Software Developer - Storage Engine - Elasticsearch posted Jul 20
- Principal Software Engineer - Storage Engine - Elasticsearch posted Jul 20
- Senior Java Engineer - Core/Infra - Elasticsearch posted Jul 20
- Senior Java Developer - Core/Infra - Elasticsearch posted Jul 20
- Principal Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 12
- Principal Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 12
- Principal Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 12
- Principal Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 12
- Principal Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 12
- Principal Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 12
- Principal Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 12
- Principal Java Developer - Distributed Systems, Serverless - Elasticsearch posted Jun 12
- Senior Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 11
- Senior Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 11
- Senior Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 11
- Senior Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 11
- Senior Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 11
- Senior Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Jun 11
- Principal Software Engineer - Vector Search - Elasticsearch posted May 7
- Principal Software Engineer - Query Engine, Database Internals - Elasticsearch posted Apr 7
- Senior Java Engineer - Distributed Systems, Serverless - Elasticsearch posted Mar 19
- Senior Java Developer - Distributed Systems, Serverless - Elasticsearch posted Mar 19
- Senior Software Engineer - Query Engine, Database Internals - Elasticsearch posted Mar 17
- Principal Software Engineer - Search Infra - Elasticsearch posted Oct 22
From the team and dates on Elastic's own job board.
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