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

Developer Tools
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eBay OAuth Client Library in Python and Best Practices

To make it easier to integrate with eBay RESTful APIs, eBay provides client SDK libraries in C#, Java, and Python. Learn how to quickly set up the OAuth SDK in Python and learn about eBay OAuth best practices.

By: Catherine Wong
Performance Engineering
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eBay's Hyperscale Platforms

In the era of artificial intelligence, machine learning, and cloud technology, data is growing exponentially. eBay data continues to grow, serving more than 182 million buyers and $13.4 billion of transactions completed on mobile devices. Understanding how to manage data is a key to success. System hardware platforms must be designed for the data.

By: Lam Dong
Distributed Systems
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NuRaft: a Lightweight C++ Raft Core

We are excited to announce the public release of NuRaft, a lightweight C++ Raft core, under the Apache 2.0 open source license. NuRaft is based on the cornerstone C++ Raft implementation, but with various additions and changes, and is the result of over two years of development and testing for production use within eBay for storage server data replication. This post discusses what NuRaft is, and how it can be used.

By: Gene Zhang and Jung-Sang Ahn
Performance Engineering
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Improving the Speed and Accuracy of the Item Page with Light Service

The item page is one of the most critical pages in the eBay buyer experience. It's where a buyer make their purchase decisions. It's also one of the pages in eBay that gets the most user traffic. The speed of this page and showing accurate information to the user is of great importance. Item fast light service was developed to get critical item information as quickly as possible from the primary source tables. This service is currently used in a number of applications to achieve functionalities that needs 100% accuracy with lightning speed and performance of less than 10ms for an item.

By: Ramesh Periyathambi
Developer Tools
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API Mindset at eBay

APIs allow organizations to give their partners access to data and capabilities, at scale. Extensible and adaptable API ecosystems make it easier for developers to innovate. Building such an ecosystem is a progressive journey with many technical challenges.

By: Tanya Vlahovic
Big Data
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Monitoring at eBay with Druid

At eBay, we switched one of our monitoring tech stacks from legacy homegrown architecture to a Druid-based real-time monitoring system. In this article, we discuss how we transitioned our journey to a new stack and also the benefits it has to offer.

By: Mohan Garadi
WebAssembly
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WebAssembly at eBay: A Real-World Use Case

From the time it was announced, WebAssembly caused a huge buzz in the front-end world. The web community readily embraced the idea of taking code written in programming languages other than JavaScript and running that code in the browser. Above all WebAssembly consistently guarantees native speeds much faster than JavaScript. At eBay, we were no different.

By: Pranav Jha and Senthil Padmanabhan

Engineering Opportunities at eBay

Software Development
Software Architecture
Software QA
Technical Product Management

It’s all about the code. High quality, efficient, elegant code that fuels the commerce revolution. Help create the infrastructure and applications that unlock more economic opportunity for millions of people every day. This is your chance to take on some of the most complex technical problems in service of making a tangible impact around the globe. Learn more about Engineering Careers.

Architects build the future. You're a technologist with a passion to design systems and long-term software roadmaps for new and valuable technology programs. These drive value for our customers, our company and communities around the world. Here, you can architect the foundation that is transforming commerce. Learn more about Engineering Careers.

It’s not right until you say so. Our Quality Engineers ensure that new releases work as expected for our customers, every time. Create end-to-end test plans and then execute them to validate that our solutions have met or exceeded all requirements and business objectives. You are the ultimate gatekeeper of the customer experience. Learn more about Engineering Careers.

We can’t get there without a map. You will help define the strategy and vision for our technical solutions—building multi-generational product plans and roadmaps for an evolving and complex global product portfolio. Work with product and development teams to identify new ways to deliver exceptional experiences for consumers and merchants. Learn more about Engineering Careers.

OSS
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Akutan: A Distributed Knowledge Graph Store

We're excited to announce the public release of Akutan, a distributed knowledge graph store, under the Apache 2.0 open source license. Akutan is the result of four person-years of exploration and engineering effort, so there's a lot to unpack here! This post will discuss what Akutan is, how it's implemented, and why we've chosen to release it as open source.

By: Diego Ongaro and Simon Fell
Software Design
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Deriving Data Structures

Data Structures are the basic building blocks of software. In this article, one eBay engineer gives his perspective on how they might have evolved over time, enabling us to build complex things out of simpler parts.

By: Sachin Tilloo