Senior Software Engineer, Vector Search & Relevance

Engg; España; On-site; PHP 4,855,000 - 7,681,000; Full time

Job summary

Elastic seeks a Senior Software Engineer to join the Elasticsearch - Search Relevance team. This globally distributed group focuses on fast, relevant search and improving Lucene-based capabilities. You will shape technical direction, design new features, and resolve complex bugs.

You will write idiomatic Java, work with vector databases, and collaborate asynchronously with teams across continents. This role emphasizes autonomy, code reviews, and delivering high-quality software.

Qualifications

• Experience with search or vector databases, using HNSW, IVF, or similar algorithms.
• Strong Java knowledge and familiarity with core data structures and concurrency.
• Ability to work autonomously and guide projects from start to finish.
• Experience collaborating across distributed teams and communicating APIs.
• Bonus: prior contributions to open source or collaboration over the internet.

Responsibilities

• Lead Elasticsearch initiatives to deliver fast, relevant search and build new features.
• Triage issues, implement algorithms, and improve code clarity.
• Collaborate with globally distributed engineers and stakeholders.
• Drive architectural decisions and mentor teammates.

Skills

Java

Search relevance

Vector databases

Tools

Elasticsearch

Solr

PostgreSQL

MongoDB

Cassandra

Job description

Elastic seeks a Senior Software Engineer to join the Elasticsearch - Search Relevance team. This globally distributed group focuses on fast, relevant search and improving Lucene-based capabilities. You will shape technical direction, design new features, and resolve complex bugs.

You will write idiomatic Java, work with vector databases, and collaborate asynchronously with teams across continents. This role emphasizes autonomy, code reviews, and delivering high-quality software.