Software Engineer III - Search

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.

About the team and the role:

TCGplayer connects hobbyists and hobby businesses to communities. We relentlessly improve the exchange of things and thoughts that fuel passions, providing the most compelling destination and tools for collectible card game enthusiasts and professional sellers! TCGplayer, now a part of eBay, promotes and drives growth of our products and services by connecting a global community of millions of buyers with tens of thousands of retailers in a $25B global collectible hobby market.

The Buyer Engagement Group owns our commitment to empower hobbyists to effortlessly engage with our marketplace, driving growth and loyalty. We embody innovation, agility, and a relentless focus on the hobbyist to create exceptional experiences. Our engineering team thrives on a core foundation of quality, collaboration, ownership, and an unwavering commitment to excellence. 

The Search Team owns our commitment to empower hobbyists to rapidly discover the most relevant products across a complex and continuously evolving Marketplace. By designing and optimizing search algorithms and ranking systems, the team ensures that buyers are matched with listings that meet their intent, improving conversion, buyer satisfaction, and retention. As an experienced software engineer, you will work with a team of engineers that focus on developing, maintaining, and advancing scalable search solutions and algorithms to power seamless product discovery. 

Our team prides itself on a culture that fosters camaraderie, embraces diversity, and exudes passion! We are one of New York State’s 50 best employers and Fortune.com’s top 100 companies for women in the U.S.

What you will accomplish: 

• Independently responsible for the lifecycle of features, including engineering design, development, test automation, and deployment.     

• Improve code structure and architecture in service of testability and maintainability.        

• Write, co-write, and review design documentation.        

• Drive improvements in test automation and strengthen the Search API automation framework.

• As a Search Team Engineer, design and build scalable search platforms and relevance algorithms that optimize product discovery and improve user experience across the TCGplayer marketplace.

• Deliver technical solutions for search scalability, optimization, and international growth, supporting millions of global buyers and tens of thousands of retailers.

• Design, implement, and optimize retrieval-augmented generation (RAG) pipelines and fine-tuned LLM workflows leveraging policy and transaction data.

• Contribute to complex, cross-functional projects driving major innovations in search infrastructure and relevance.

• Participate in the development, evaluation, and improvement of search relevance algorithms, working with data from SQL and NoSQL sources (such as Elasticsearch, Redis, MongoDB).

• Provide support for mission-critical search applications, troubleshooting production issues with modern monitoring tools (such as Scalyr/DataSet and New Relic).

• Contribute to a culture of continuous learning, growth, and innovation within the Search team.

What you will bring: 

• A relevant Master's or Bachelor’s Degree and 5 years of relevant industry or academic experience, or 9 years of practical experience

• 4+ years of software development experience, ideally Java, Clojure

• Experience in high volume production systems design with consideration for high availability, disaster recovery, performance, fault tolerance, and security

• Experience in designing and integrating ML/AI systems, leveraging modern LLMs and technologies such as RAG and agentic workflows

• Experience designing and developing microservices in an AWS cloud-based architecture

• Working knowledge of RDBMS technologies (SQL Server, PostgreSQL) and NoSQL stores (Redis, MongoDB, Elasticsearch)

• Working knowledge of event/stream processing mechanisms, specifically Kafka
   

Additional Details

The base pay range for this position is expected in the range below:

Base pay offered may vary depending on multiple individualized factors, including location, skills, and experience. The total compensation package for this position may also include other elements, including a target bonus and restricted stock units (as applicable) in addition to a full range of medical, financial, and/or other benefits (including 401(k) eligibility and various paid time off benefits, such as PTO and parental leave). Details of participation in these benefit plans will be provided if an employee receives an offer of employment.

If hired, employees will be in an “at-will position” and the Company reserves the right to modify base salary (as well as any other discretionary payment or compensation program) at any time, including for reasons related to individual performance, Company or individual department/team performance, and market factors.

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 talent@ebay.com. 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. It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

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