Opensearch Backend Engineer
Core
Design, manage, and maintain highly available OpenSearch clusters to ensure stability, scalability, and performance for eBay's search and analytics infrastructure.
Role type
Senior IC backend engineer (OpenSearch/Elasticsearch)
Builds
Production-grade search and analytics infrastructure, self-service ecosystem tools, and automation for administrators and customer teams.
Domain
Ecommerce, Search Infrastructure, Distributed Systems
Deliverable
production ML models | product features | infrastructure
Required skills
Java, OpenSearch/Elasticsearch, Computer Science fundamentals (data structures, algorithms), Object-oriented design, Cluster architecture (sharding, indexing, replication), Query optimization, AI coding agents (Claude Code, Codex), Problem-solving
Preferred skills
Lucene, React, NodeJS, Multi-national company experience
Technologies
OpenSearch, Elasticsearch, Logstash, Kibana, Beats, Lucene, React, NodeJS, Claude Code, Codex
Responsibilities
Design and maintain OpenSearch clusters for high availability and scalability; Develop ecosystem tools for self-service and automation; Troubleshoot complex issues in large-scale clusters; Estimate engineering efforts and plan system rollouts; Participate in maintaining team standards and best practices.
Seniority
Senior, hands-on IC
