Opensearch Backend Engineer

eBay; Bengaluru; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

eBay is seeking an OpenSearch Backend Engineer to design, manage, and maintain highly available OpenSearch clusters, ensuring stability, scalability, and performance of search and analytics infrastructure critical to the company’s data ecosystem.

The role requires 5+ years in Java and at least 2+ years with OpenSearch/Elasticsearch, with hands-on ELKB experience and strong problem-solving skills. Collaboration across teams and strong English communication are essential.

Qualifications

• BS/MS/PhD in Computer Science or related technical discipline.
• 5+ years’ experience in Java development with at least 2+ years in OpenSearch/Elasticsearch.
• Strong fundamentals in data structures and algorithms.
• Proven ability to troubleshoot large-scale OpenSearch clusters.
• Experience with ELKB stack or OpenSearch stack.

Responsibilities

• Design, build, and maintain OpenSearch clusters for high availability and scalability.
• Develop tools for self-service and automation for admins and users.
• Troubleshoot complex OpenSearch issues in high-traffic environments.
• Estimate engineering efforts and plan rollouts of changes.
• Develop technical expertise in domain and product areas.
• Contribute to team standards and best practices.

Skills

Java

OpenSearch/Elasticsearch

ELKB

AI coding agents

React

NodeJS

Education

BS/MS/PhD in Computer Science or related

Tools

ELKB (Elasticsearch, Logstash, Kibana, Beats)

OpenSearch stack

Elasticsearch/OpenSearch Core

Lucene

Job description

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 [e-mail]. 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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