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

Data Infrastructure and Services

eBay’s Global Secondary Indexes

How eBay enabled a real-time, distributed and performant index service for its NuData platform, a large-scale, in-house database platform

By: Jung-Sang Ahn and Dongho Kim
Frontend Engineering

Rethink Modals Management in React

A small, zero-dependency utility to manage modals for React.

By: Nate Wang and Feng Xie
Java

eBay Event Notification Platform: Listener SDKs

How eBay’s new event notification platform supports asynchronous communication for our API partners

By: Lokesh Rishi, Lead Software Engineer
Service Architecture

The Engineering Behind Coded Coupons, eBay’s New Seller Tool

This tool was developed by using a dual-write system — including Oracle and MongoDB.

By: Senthilkumar Gopal
Developer Tools

Surfacing eBay Inventory Across the Web with the eBay Items Widget

The new open-source widget gives developers several layout options for displaying eBay inventory in third-party shopping experiences.

By: Lokesh Rishi, Lead Software Engineer
eBay Connect 2021: Powered by You Banner with Maroon Hexagons Next to a Globe
Developer Tools

eBay Connect 2021: How Our Newest APIs Are Enhancing Customer Experiences

With some of our most innovative third-party developers attending eBay Connect this year, we shared new API capabilities as well as opportunities to enhance user experiences.

By: Tanya Vlahovic, Head of Developer Ecosystem & Distinguished Architect
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

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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
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