Staff Backend Engineer

At eBay were more than a global ecommerce leader were changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. Were 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. Were 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.

About the team and the role:

The eBay Advertising team is building ad-tech solutions that improve how buyers and sellers connect while driving marketplace performance. This role sits within a cross-functional engineering group working closely with product design and machine learning teams to deliver scalable advertising experiences. As a Backend Engineer you will help design and build systems that power ad products contributing to both user experience and business outcomes while collaborating across a distributed engineering environment.

What you will accomplish:

• Build scalable highly available RESTful APIs and event-driven systems to support advertising products
• Design and deliver new experiences that help sellers and advertisers promote products and manage campaigns
• Collaborate with cross-functional teams (frontend backend ML product design QA) to deliver end-to-end solutions
• Continuously ship code through testing and deployment pipelines improving reliability and performance
• Contribute to shared codebases within the internal open source ecosystem
• Participate in technical discussions influencing system design and technology choices
• Improve development efficiency and code quality using AI-assisted tools

What you will bring:

• Strong experience with Java/J2EE (required) and familiarity with Scala (preferred)
• Experience working with SQL and NoSQL databases and data formats such as JSON and XML
• Familiarity with frameworks such as Spring MVC and building RESTful web services
• Experience designing systems that handle large volumes of events using event-driven architecture
• Understanding of core computer science concepts such as data structures and algorithms
• Exposure to JavaScript TypeScript or React is a plus
• Degree in Computer Science or a related field and 5 years of practical experience
• Ability to learn new technologies contribute to shared codebases and collaborate effectively within a team environment
• Proficiency with AI coding tools (Claude Code Codex Cline Cursor etc.) is a strong plus.

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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 you have a need that requires accommodation please contact us at. We will make every effort to respond to your request for accommodation as soon as possible. View our accessibility statement to learn more about eBays commitment to ensuring digital accessibility for people with disabilities.

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