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Senior Software Engineer - Search Algorithms - Elasticsearch

Elastic· Platform - Elasticsearch
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Hybrid (Poland)PLN 307.8k - PLN 486.9kfull-timePosted 1mo ago

About the role

Senior Software Engineer to join the Elasticsearch - Search Relevance team, responsible for technical direction and implementation of new search features, enhancements to search functionality, and bug resolution, with a focus on search relevance and vector search capabilities.

Responsibilities

  • 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. 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 Elasticsearch search relevance. You'll identify and drive improvements 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!

Qualifications

  • Professional experience with search or vector databases, and you used HNSW, IVF, or other relevant algorithms and libraries on search platforms at scale.
  • Solid skills in core Java and are conversant in the standard library of data structures and concurrency constructs, as well as other features like lambdas.
  • Ability to work autonomously and guide projects from design to delivery, including technical design and cross-team collaboration.
  • Experience developing collaboratively, with strong feedback and asynchronous collaboration across the internet considered a bonus.
  • Experience with data storage technologies like Elasticsearch, Solr, PostgreSQL, MongoDB, or Cassandra.
  • Proven track record of using AI to accelerate development, debugging, and optimization while owning outcomes.
  • Ability to collaborate across functions and transition between projects, codebases, or teams based on priorities.
  • Autonomous, able to drive decisions and results in a distributed team via asynchronous, direct, and transparent communication.

Skills

Required:Search/relevance optimizationJavaVector databases and algorithms (HNSW, IVF)Distributed collaboration

Benefits

  • Competitive pay based on the work you do here and not your previous salary
  • Health coverage for you and your family in many locations
  • Flexible locations and schedules for many roles
  • Generous number of vacation days each year
  • Company donation matching up to $2000 (local currency equivalent)
  • Up to 40 hours per year for volunteer projects
  • Minimum of 16 weeks of parental leave
  • Diversity and inclusive culture
  • Equal opportunity employer
Last updated Sep 3, 2026. Interested? Apply on the company site.
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