Engineering: Tech Blog

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

Enabling HDFS Federation Having 1B File System Objects

In this blog, we discuss our journey to enable NameNode federation for cluster with 4,000+ nodes, 1B file system objects and 170PB of storage.

By: Ruchir Shah

Mobile

eBay Motors: Screenshot Testing with Flutter

The team continues to update the eBay Motors App using Google’s UI toolkit, Flutter.

By: Maksim Zadorskii, Corey Sprague and Larry McKenzie

Developer Tools

Know Your Developer (KYD)

The vision of any API program is to deliver a world-class developer experience that enables partners to be inventive, provide their users with fantastic experience, and propel their business into the future. Learn the guiding principles behind eBay's Developers Program.

By: Tanya Vlahovic

Microservices

New & Improved Terapeak Research 2.0 in eBay Seller Hub

Follow the journey of integrating Terapeak into eBay Seller Hub, making it available to millions of eBay sellers.

By: Senthilkumar Gopal, Cem Gemici, Lucan McRandall, Shawn Zhang and Yury Elizarov

Performance Engineering

Prefetch Caching of eBay Items

With 1.4 billion listings on eBay, improving the speed to render these listings at scale and accuracy is a huge engineering challenge. We have taken major steps to cache item data, which brings great speed improvements.

By: Ramesh Periyathambi and Vineet Bindal

Agile

Coding 4 Kids Inspires Future Engineers

Today's children are exposed to technology from a very young age, and on many occasions, 2-year-olds seem to understand the iPad better than adults. Is this enough to encourage and influence them to pursue a career in STEM (science, technology, engineering and mathematics)?

By: Marios Georgiou

Data Infrastructure and Services

Anomaly Detection — Product of Data Refinery

Large scale applications are ubiquitous in today's world, processing hundreds of billions of events and producing thousands of metrics. Sifting through these metrics to surface actionable insights without using scientific methods can be challenging. In this blog post, we explore an introduction to the realm of predictive analytics in the context of anomaly detection.

By: Ahmed Abdulaal and Subrahmanya Harve

Engineering Opportunities at eBay

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.

Latest Jobs

All Software Development Jobs

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.

Latest Jobs

All Software Architecture Jobs

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.

Latest Jobs

All Software QA Jobs

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.

Latest Jobs

All Technical Product Management Jobs

Machine Learning

PyKrylov: Accelerating Machine Learning Research at eBay

A recent eBay Tech Blog article¹ presented the Unified AI platform called Krylov. In this article, we show how Krylov users interact with the platform to build and manage powerful workflows in a pythonic and efficient way.

By: Selcuk Kopru and Jingjing Jiang