New The Skills of Tomorrow: how AI-exposed is every skill in 2026? See the data →
Elastic

Senior Software Engineer - Search Relevance in ES|QL - Elasticsearch

Elastic
Apply →
senior full-time Switzerland

First indexed 28 Jul 2026

Description

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.

We're looking for a Senior Software Developer to join the Elasticsearch - Search Relevance 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.

As a Senior Software Engineer, you will:

  • Lead initiatives within Elasticsearch to produce an industry-leading search engine 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.
  • Work with a globally distributed team of experienced engineers focused on the vector search capabilities of Elasticsearch.
  • Be an expert on Elasticsearch search relevance. You'll identify and drive improvements in 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!

To be successful in this role, you should:

  • Have professional experience with search or vector databases, and have used HNSW, IVF, or other relevant algorithms and libraries on search platforms at scale.
  • Possess solid skills in core Java and be conversant in the standard library of data structures and concurrency constructs, as well as other features like lambdas.
  • Work with a high level of autonomy and be able to take on projects and guide them from beginning to end.
  • Be comfortable developing collaboratively, giving and receiving feedback on code and approaches and APIs.
  • Have 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.
  • Have a proven track record of using AI to accelerate development, debug complex systems, and optimize code, while still owning the final outcomes.

We offer:

  • 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
This listing is enriched and indexed by YubHub. To apply, use the employer's original posting: https://job-boards.greenhouse.io/elastic/jobs/8091748