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

Data Infrastructure and Services

Block Aggregator: Real-time Data Ingestion from Kafka to ClickHouse with Deterministic Retries

Learn about the message-processing engine eBay developed to avoid data loss or duplication during delivery from Kafka to ClickHouse.

By: Mohammad Roohitavaf and Jun Li
Hadoop

Optimizing Analytics Data Processing on eBay’s New Open-Source-Based Platform

See how eBay adopted a five-level tuning strategy for an in-house analytics tool to exceed a legacy vendor’s performance.

By: Rongguan Fu, Tianyou Li and Naveen Dhanpal
Hadoop

Unpacking eBay’s New SQL Authoring Tool for Data Creation and Management

Discover how eBay built a tool for data modeling, ETL and SQL editing to enhance our analytics platform.

By: Stanley Chen, Gavin Zhu and Valerie Steinbrugge
Hadoop

Explore eBay’s New Optimized Spark SQL Engine for Interactive Analysis

See how eBay created an optimized SQL solution to enhance speed, stability and scalability in service of a new open-source-based analytics platform.

By: Gang Ma, Lisa Li and Naveen Dhanpal
Developer Tools

AsyncAPI 2.0: Enabling the Event-Driven World

Learn about how eBay is standardizing on and publishing AsyncAPI Specification 2.0-based contracts for event notifications.

By: Shekhar Banerjee
Hadoop

From Vendor to In-house: How eBay Reimagined Its Analytics Landscape

Learn how eBay transitioned its analytics data platform from a vendor-based data warehouse to an open-source-based solution built by the team.

By: Medha Samant and Valerie Steinbrugge
Developer Tools

eBay Launches Targeted Auto Retry

eBay’s open source Swift package provides powerful resilience against flaky test steps.

By: Evan Pierce

eBay Is Hiring

677 Job Openings Start Your Search

North
America

407 Job Openings

Europe, Middle East
& Africa

194 Job Openings

Asia
Pacific

75 Job Openings
Cloud

How eBay Leverages Kubernetes, Helm Charts and Jenkins Pipelines to Deliver High-Quality Software

Learn how eBay has fully automated our software quality certification to enhance efficiency, minimize manual intervention, and scale for increasingly complex requests and combinations.

By: Zhong Shen, Rocky Shang and Ramit Bedi
Coding Practices

eBay Motors & State Management

Learn how we avoided the state management debate when building the eBay Motors app.

By: Larry McKenzie, Corey Sprague and Maksim Zadorskii
Platforms and Frameworks

How Creating an Agile Code Base Helped eBay Pivot for Apple Silicon

eBay’s native code base has grown and evolved for over 13 years, but is still nimble enough to quickly incorporate the latest features into the app.

By: Wyatt Webb
Distributed Systems

How eBay’s Distributed Architecture Surfaces More Item Listings for Buyers

With Buyer Demand Data, eBay sellers can access information on the item specifics buyers are using in their search queries. This insight increases sellers’ completion of item specifics, which in turn further enhances listings’ quality, visibility and sales.

By: Vikas Singh
Automation

How eBay’s Buy APIs Hit $5 Billion in Gross Merchandise Bought

eBay’s Buy APIs enable third-party developers to surface eBay inventory in their shopping experience, allowing consumers to purchase items without visiting an eBay site.

By: Tanya Vlahovic
OSS

eBay Launches Marko 5

eBay’s open source JavaScript UI framework modernizes universal web development.

By: Ryan Carniato, Michael Rawlings and Dylan Piercey
Advertising

Customized Ad-Rate Recommendations Now Available for Promoted Listings on eBay

A new machine-learning tool helps sellers set competitive ad rates for their Promoted Listings, optimizing between cost and performance.

By: Wenlong Luo, MingYu Liu, Shad Kirmani and Bedabrata Patel
Data Infrastructure and Services

An Introduction to Apache Flink

How we’re using Apache Flink to handle big data streaming in real-time.

By: Chenru Lyu
Computer Vision

eBay’s Technology Transformation is Made for Evolving Customer Needs

How our advances in edge computing are empowering both buyers and sellers in times of great demand with ease and agility.

By: Mazen Rawashdeh
Developer Tools

An Automatic Mirror Testing Solution for Messaging Systems in eBay

A look at how we developed a solution for automatic mirror testing to overcome the challenges of migrating eBay’s proprietary messaging applications to a more modern technical stack.

By: Tao Jin and Vivek Gadiyar
Kubernetes

Our Online Analytical Processing Journey with ClickHouse on Kubernetes

Learn about the latest evolution of online analytical processing (OLAP) data, now with ClickHouse on Kubernetes.

By: Sudeep Kumar, Mohan Garadi, Xiancheng Li, Amber Vaidya and Liangfei Su
Developer Tools

High Efficiency Tool Platform for Framework Migration

The eBay framework team has implemented a brand new tooling platform to speed up framework level migration. It supports highly efficient migration of applications running on legacy stacks to new platforms. This has been proven by the success stories migrating Batch, SOA, Trading/Shopping API, and messaging application migration.

By: Paul Zhang and Vivek Gadiyar