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

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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
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