Tech Blog Archive

Agile in Engineering
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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 in Engineering
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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
Machine Learning in Engineering
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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
Machine Learning in Engineering
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eBay Open Source — 2019 in the Rear View Mirror; 2020 Ahead

As we move further into 2020, it’s worth reviewing a selection of key eBay Open Source projects released in 2019.

By: Brian D. Haslam
Performance Engineering in Engineering
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Speed By A Thousand Cuts

In 2019, eBay prioritized a company-wide initiative, aptly called “Speed,” focused on improving the performance of critical eBay flows across all platforms — iOS, Android, and Web. This article explains the journey and outcomes.

By: Senthil Padmanabhan
Developer Tools in Engineering
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Safe ACL Change through Model-based Analysis

Model-based analysis makes it possible to rigorously test and validate changes prior to deployment. This approach enabled the eBay Network Engineering staff to undertake a project to refactor a large business critical Access Control List, resulting in an 80% reduction in size, without any adverse business impact.

By: Antonio Ceseracciu
Accessibility in Engineering
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Automation via the Accessibility Ruleset Runner

Automated testing helps organizations build better software, faster. Automation can also be used to standardize user experiences or maintain code compliance. With respect to accessibility, automation can be used to bring awareness by helping people with little to no accessibility knowledge easily find, file and fix bugs.

By: Scott Izu, Ian McBurnie, Sean Gates and Valliappan Thenappan
Agile in Engineering
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Automate Problems Away with Token Jobs

Got a problem? Spend some time writing a script to do it for you. Got a bigger problem? Write a service that fixes it for you. Want to solve problems with software engineering? Use Token Jobs.

By: Mayur Dave
Machine Learning in Engineering
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eBay’s Transformation to a Modern AI Platform

How the AI transformation at eBay was powered by a modern AI platform with a unified and open approach.

By: Sanjeev Katariya and Ashok Ramani
Mobile in Product
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Under the Hood of eBay Motors: New App Powered By Advanced Technology Like Flutter, ML and BFF

eBay introduces the eBay Motors native app, now available for Android and iOS in the U.S. The app was built using cutting-edge tech including machine learning, Backend for Frontend architecture and Flutter, an open source, cross-platform SDK by Google.

By: Larry McKenzie, Corey Sprague, Andrew Chalkley and Jake Hall
Developer Tools in Engineering
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eBay’s Buy APIs Hit $1B in GMB

eBay’s Buy APIs enable third-party partners to expose eBay inventory on their site.

By: Gail Frederick
User Experience in Product
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Buy the Items You Love Again and Again on eBay

eBay is taking the friction out of repurchasing a favorite find on eBay with the new Buy Again button.

By: Asheem Sinha
Frontend Engineering in Engineering
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Autofill on Browsers: A Deep Dive

The less you ask of users, the more inclined they are to complete a form, and faster form filling increases conversion. Browsers provide the autofill feature to help achieve that. In this article, we discuss how to effectively use autofill features on web forms.

By: Shanmuga Priya Pandiyan
Platforms and Frameworks in Engineering
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Discovering Continuous Automation With Request Mirroring

Because eBay's item page updates frequently, and because it depends on hundreds of libraries and services, discovering the unknowns and automating testing for all use-case combinations from production calls for a different approach to testing.

By: Lakshimi Duraivenkatesh and Vineet Bindal
Authentication in Product
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eBay Makes Mobile Web Login Easier

eBay enables secure password-less login experiences on the web-based version of eBay with WebAuthn.

By: Shikha Khanna, Anand Bahety, Md Kamal Hossen and Neb Pesic
Identity in Engineering
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Push Notifications-based 2-step Verification

To create a trustworthy online marketplace, we need to ensure only authenticated and authorized users gain access to their accounts. Learn how eBay built a secure, easy-to-use, and robust authentication framework using push notifications and leveraged it for 2-step verification.

By: Anand Bahety
Service Architecture in Research
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eBay’s New Approach to Managing a Vast Service Architecture

Learn how eBay's architecture knowledge graph was developed; the benefits eBay has received from it; and the use cases we see now and in the future for this approach.

By: Hanzhang Wang, Chirag Shah and Sanjeev Katariya
Agile in Research
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Towards Agile AI

In this article, we propose a set of better practices, designed by and for eBay ML scientists, for facilitating weaving ML modeling into the cyclical Agile process flow.

By: Jean-David Ruvini
Distributed Transactions in Engineering
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GRIT: a Protocol for Distributed Transactions across Microservices

eBay technologists recently showed off a distributed transaction protocol called GRIT, for distributed ACID (atomicity, consistency, isolation, durability) transactions across microservices with multiple underlying databases.

By: Gene Zhang, Mohammad Roohitavaf, Jung-Sang Ahn and Kun Ren