Senior Software Engineer – Search Algorithms, Elasticsearch

Elastic

. Lead initiatives within Elasticsearch to produce an industry-leading search engine offering with speed and relevance .

Posted 11/3/2026full-timeRemote • IrelandSenior💰 €85,600 - €135,500 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Elasticsearch and search engine development, with a strong focus on implementing algorithms and data structures. Proven ability to collaborate effectively in a distributed team environment while driving technical projects from inception to completion.

Highest-signal resume keywords

Elasticsearch ExpertiseCore Java ProficiencySearch Algorithms ExperienceData Storage Technologies KnowledgeCollaborative Development Skills

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Search DatabasesVector DatabasesHNSW AlgorithmIVF AlgorithmJava ProgrammingData StructuresConcurrency ConstructsTechnical DesignComponent DevelopmentAI Optimization

Soft Skills

Autonomous WorkTransparent CommunicationFeedback ReceptionCross-Functional CollaborationProject Transitioning

Tools & Technologies

ElasticsearchSolrPostgreSQLMongoDBCassandra

Tech Stack

Tools & technologies

CassandraElasticSearchJavaMongoDBPostgres

About the role

Key responsibilities & impact

Lead initiatives within Elasticsearch to produce an industry-leading search engine offering with speed and relevance
Contribute full time to Elasticsearch by building new search features and fixing bugs
Invent or implement algorithms and data structures and work close to the operating system and hardware when needed
Work with a globally distributed team focused on Elasticsearch vector search capabilities
Act as an expert on Elasticsearch search relevance and identify and drive improvements
Work with worldwide community members on issues and pull requests, triaging, handing off, or resolving them
Write idiomatic modern Java

Requirements

What you’ll need

Professional experience with search or vector databases
Experience using HNSW, IVF, or other relevant algorithms and libraries on search platforms at scale
Solid skills in core Java
Familiarity with the standard library of data structures and concurrency constructs, including lambdas
Ability to take projects from beginning to end, covering technical design and component development
Experience developing collaboratively and giving and receiving feedback on code, approaches, and APIs
Experience with data storage technologies such as Elasticsearch, Solr, PostgreSQL, MongoDB, or Cassandra
Proven track record of using AI to accelerate development, debug complex systems, and optimize code while owning final outcomes
Ability to collaborate across functions and teams and transition between projects, codebases, or teams based on business priorities
Ability to work autonomously and drive decisions and results in a distributed team through asynchronous, direct, and transparent communication

Benefits

Comp & perks

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
Elastic matches 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
Minimum of 16 weeks of parental leave