Tech Blog Archive

Solving technical challenges at scale to power the world’s largest Internet marketplace.

Data Infrastructure and Services

Variable Hub: Easier Data Integration for Risk Decisioning

A new risk data hub for decisioning can significantly boost variable time-to-market, with high performance under billions of query traffic.

By: Kan Lin, Jiwen Yan and Yuanyuan Tan
Microservices

API Evolution Is a Challenge. Could Contract Testing Be the Solution?

Contract testing has grown in popularity in recent years with the widespread adoption of microservice architectures. In this article, we will share our experiences with contract testing at eBay.

By: Xiaoye Wang, Simon Wang, Daphne Huang, David Van Couvering and Qingyuan Liu
Competitions

eBay Announces Winners of 4th Annual Machine Learning Challenge

Using the power of natural language understanding, these two students created fantastic solutions.

By: Dan Nosowitz
Advertising

How eBay Created a Language Model With Three Billion Item Titles

By leveraging deep learning techniques to compare the titles of product listings, we greatly improved the relevance of our recommended items on eBay’s View Item page.

By: Chen Xue, Jesse Lute, Dan Schonfeld, Guoping Han and Leonard Dahlmann
Testing

How eBay’s Notification Platform Used Fault Injection in New Ways

eBay’s notification platform team built a fault-tolerant, resilient system by injecting faults in the application level.

By: Wei Chen
Kubernetes

Why and How eBay Pivoted to OpenTelemetry

eBay makes a crucial pivot to OpenTelemetry to better align with industry standards for Observability.

By: Vijay Samuel
Testing

Increase A/B Testing Power by Combining Experiments

How the powerful meta-analysis method called "weighted z-test" can help eBay become more efficient.

By: Zezhong Zhang

eBay Is Hiring

172 Job Openings Start Your Search

North
America

103 Job Openings

Europe &
Middle East

58 Job Openings

Asia
Pacific

11 Job Openings
Advertising

New Buyer Groups Tool Brings Personalized Marketing to eBay Sellers

Sellers in the U.S., U.K., Germany, Australia, France, Italy and Spain now have access to Buyer Groups, a new tool which allows them to segment their buyers to drive more repeat business.

By: Parin Jogani and David Bernstein
Advertising

Multi-Objective Ranking for Promoted Auction Items

Determining which promoted auction items to display in a merchandising placement is a multi-sided customer challenge that presents opportunities to both surface amazing auction inventory to buyers and help sellers boost visibility on their auction listings.

By: Ishaan Arora, Chen Xue, Jesse Lute and Dan Schonfeld