Opensearch Backend Engineer

At eBay, we're more than a global ecommerce leader — we're changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We're committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts.

Our customers are our compass, authenticity thrives, bold ideas are welcome, and everyone can bring their unique selves to work — every day. We're in this together, sustaining the future of our customers, our company, and our planet.

Join a team of passionate thinkers, innovators, and dreamers — and help us connect people and build communities to create economic opportunity for all.

We are seeking a skilled OpenSearch Backend Engineer to design, manage, and maintain our highly available OpenSearch clusters. This role will ensure the stability, scalability, and performance of our search and analytics infrastructure, which is mission-critical to the company's data and application ecosystem.

Job Responsibilities

Design, build, and maintain eBay's OpenSearch clusters to ensure high availability, scalability, and stability.

Develop and implement ecosystem tools that provide self-service capabilities and automation, improving efficiency for both administrators and customer teams.

Proactively troubleshoot and resolve complex issues in large-scale, high-traffic OpenSearch clusters to ensure optimal performance and reliability.

Estimate engineering efforts, plan implementations, and rollout system changes.

Develop industry and product technical expertise.

Proactively participate in maintaining team standards and best practices

Job Requirements

BS, MS, or PhD in Computer Science or related technical discipline (or equivalent).

5+ years work experience in Java software development area with at least 2+ years experience in OpenSearch/ElasticSearch

Deep understanding of computer science fundamentals, data structures, and algorithms.

Excellent problem-solving skills, good at triaging and resolving critical tech issues without supervision.

Expertise required in object-oriented design methodology and application development in Java

Hands-on experience with ELKB (Elasticsearch, Logstash, Kibana and Beats) technical stack (or OpenSearch stack).

Understanding of Elasticsearch/OpenSearch cluster architecture, sharding, indexing, replication, and query optimization.

Demonstrated proficiency building production-grade software with AI coding agents, improving engineering velocity while maintaining high standards for quality, availability, and maintainability.

Ability to decompose problems and provide agents with the right context, specifications, constraints, and validation criteria.

Ability to capture and express business, architecture, codebase, and operational knowledge so AI coding agents can execute complex tasks accurately and autonomously.

Hands-on experience delivering complex, production-quality software using AI coding tools such as Claude Code, Codex, etc.

Experience With ElasticSearch/OpenSearch Core Or Lucene Is a Plus.

Skills in React and NodeJS will be a big plus.

Proven result-oriented individual with delivery focus in a high velocity, high quality environment.

Strong Communication Skills In Oral And Written English.

Working experience in a multi-national company is a plus.

Additional Details

eBay is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, national origin, sex, sexual orientation, gender identity, veteran status, and disability, or other legally protected status. If you have a need that requires accommodation, please contact us at [HIDDEN TEXT]. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBay's commitment to ensuring digital accessibility for people with disabilities.

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