ebay

eBay's Responsible AI Principles

We've adopted five guiding principles for the responsible use and development of AI.

Cutting Through the Noise: Three Things We've Learned About Generative AI and Developer Productivity

Learn how eBay is deploying AI at scale to unlock employee productivity.

Podcast: Nitzan Mekel-Bobrov on AI, the Future of Shopping Online, and the Value of Building In-House

Hear from eBay's Chief AI Officer on a recent episode of the Bloomberg Intelligence podcast 'Tech Disruptors.'

Meet the Winners of the 5th eBay University Machine Learning Challenge

Members of the winning team, NullPointer, will join eBay for a 2024 summer internship.

Lauren Wilcox Named 2023 ACM Distinguished Member

eBay's Lauren Wilcox named 2023 ACM Distinguished Member for contributions to responsible AI and human-centered computing.

New Social Caption Generator Uses AI to Help Sellers Post More Easily

eBay sellers now have a new tool to make social sharing easier, all powered by AI.

eBay VP Ishita Majumdar Featured in Diversity Woman Media’s Power 100 List

Ishita joins leaders in technology, transportation, retail, and medicine in Diversity Woman Media’s third annual list.

Introducing an Accessibility Linter for Marko: Shortening the Accessibility Testing Pipeline

Our goal: Help developers create better code, more efficiently, while maintaining accessibility for all.

How We Export Billion-Scale Graphs on Transactional Graph Databases

By leveraging Apache Spark, eBay Graph Database can export a graph with billions of vertices and edges.

eBay’s first Chief AI Officer Nitzan Mekel-Bobrov Recognized in Insider’s AI 100 List

Nitzan’s work ensures that eBay can magically and responsibly deliver AI-powered experiences.

eBay Exec on How Artificial Intelligence Will Bring a ‘Paradigm Shift’ to Ecommerce

Chief AI Officer Nitzan Mekel-Bobrov predicts how AI will transform the online shopping experience.

Evolving Recommendations: A Personalized User-Based Ranking Model

We developed a ranking model to generate personalized recommendations that optimally ranks hundreds of candidate recommendations by considering a user’s shopping experience as well as platform performance objectives.

Beyond Words: How Multimodal Embeddings Elevate eBay's Product Recommendations

By integrating information from different modalities of eBay listings such as titles and images, we greatly improved the buyer experience and relevance of the recommended items on eBay’s listing pages.

eBay’s Commitment to Responsible AI: Q&A With Dr. Anna Zeiter, Chief Privacy Officer, Associate General Counsel for Privacy, Data & AI

Why eBay sees responsible AI as a priority that can’t wait.

‘Magical’ Listing Tool Harnesses the Power of AI to Make Selling on eBay Faster, Easier, and More Accurate

eBay’s new magical listing tool uses artificial intelligence to extrapolate details about listings from images. Sellers can list items with ease, and buyers can access more information about potential purchases.

eBay Execs Talk Generative AI and Computer Vision at VentureBeat Transform Conference

Chief AI Officer Nitzan Mekel-Bobrov and Vice President of Seller Experience Xiaodi Zhang shared how AI will make life easier for sellers, buyers and employees.

eBay Execs Talk Generative AI and Computer Vision at VentureBeat Transform Conference

Chief AI Officer Nitzan Mekel-Bobrov and Vice President of Seller Experience Xiaodi Zhang shared how AI will make life easier for sellers, buyers and employees.

Celebrating the 15th Anniversary of eBay’s Mobile App

There was, unbelievably, a time before apps.

Celebrating the 15th Anniversary of eBay’s Mobile App

There was, unbelievably, a time before apps.

eBay Chief Technology Officer Mazen Rawashdeh Talks AI, Embracing Tech Disruption on Bloomberg Podcast

Mazen shared his perspective on emerging technology trends and how eBay is embracing the disruption, bringing new customer experiences powered by AI to the marketplace.

eBay Chief Technology Officer Mazen Rawashdeh Talks AI, Embracing Tech Disruption on Bloomberg Podcast

Mazen shared his perspective on emerging technology trends and how eBay is embracing the disruption, bringing new customer experiences powered by AI to the marketplace.

eBay’s Common Automation Solution for Platform Evolution

Here at eBay, we’ve crafted a brand new approach to automate platform evolution for all applications — one that provides a repeatable and reusable infrastructure to streamline evolution.

eBay’s Common Automation Solution for Platform Evolution

Here at eBay, we’ve crafted a brand new approach to automate platform evolution for all applications — one that provides a repeatable and reusable infrastructure to streamline evolution.

eBay’s Blazingly Fast Billion-Scale Vector Similarity Engine

The Similarity Engine's use cases include item-to-item similarity for text and image modality and user-to-item personalized recommendations based on a user’s historical behavior data.

eBay’s Blazingly Fast Billion-Scale Vector Similarity Engine

The Similarity Engine's use cases include item-to-item similarity for text and image modality and user-to-item personalized recommendations based on a user’s historical behavior data.

How eBay Modernized the Most Important Page on Our Platform

eBay's core page — the View Item page — gets 250 million views per day. Here's how we took on the task of modernizing it.

How eBay Modernized the Most Important Page on Our Platform

eBay's core page — the View Item page — gets 250 million views per day. Here's how we took on the task of modernizing it.

How eBay's New Search Feature Was Inspired By Window Shopping

A new feature generates customer delight by using modern computer vision techniques to drive new search paradigms through visual discovery.

How eBay's New Search Feature Was Inspired By Window Shopping

A new feature generates customer delight by using modern computer vision techniques to drive new search paradigms through visual discovery.

How eBay Made Its New Accessibility Tool — And Made It Available to All

Several eBay teams worked together to create a plug-in that makes it easy to include accessibility in a design right from the start.

How eBay Made Its New Accessibility Tool — And Made It Available to All

Several eBay teams worked together to create a plug-in that makes it easy to include accessibility in a design right from the start.

How eBay Made Its New Accessibility Tool — And Made It Available to All

Several eBay teams worked together to create a plug-in that makes it easy to include accessibility in a design right from the start.

Open-Source Contribution: New Maven Dependency Resolution Algorithm

It’s been effective at speeding up productivity, pushed to eBay, and contributed back to the open source community.

Open-Source Contribution: New Maven Dependency Resolution Algorithm

It’s been effective at speeding up productivity, pushed to eBay, and contributed back to the open source community.

Variable Hub: Easier Data Integration for Risk Decisioning

A new risk data hub for decisioning can significantly boost variable time-to-market, with high performance under billions of query traffic.

Variable Hub: Easier Data Integration for Risk Decisioning

A new risk data hub for decisioning can significantly boost variable time-to-market, with high performance under billions of query traffic.

API Evolution Is a Challenge. Could Contract Testing Be the Solution?

Contract testing has grown in popularity in recent years with the widespread adoption of microservice architectures. In this article, we will share our experiences with contract testing at eBay.

API Evolution Is a Challenge. Could Contract Testing Be the Solution?

Contract testing has grown in popularity in recent years with the widespread adoption of microservice architectures. In this article, we will share our experiences with contract testing at eBay.

eBay Announces Winners of 4th Annual Machine Learning Challenge

Using the power of natural language understanding, these two students created fantastic solutions.

eBay Announces Winners of 4th Annual Machine Learning Challenge

Using the power of natural language understanding, these two students created fantastic solutions.

How eBay Created a Language Model With Three Billion Item Titles

By leveraging deep learning techniques to compare the titles of product listings, we greatly improved the relevance of our recommended items on eBay’s View Item page.

How eBay Created a Language Model With Three Billion Item Titles

By leveraging deep learning techniques to compare the titles of product listings, we greatly improved the relevance of our recommended items on eBay’s View Item page.

How eBay’s Notification Platform Used Fault Injection in New Ways

eBay’s notification platform team built a fault-tolerant, resilient system by injecting faults in the application level.

How eBay’s Notification Platform Used Fault Injection in New Ways

eBay’s notification platform team built a fault-tolerant, resilient system by injecting faults in the application level.

Why and How eBay Pivoted to OpenTelemetry

eBay makes a crucial pivot to OpenTelemetry to better align with industry standards for Observability.

Why and How eBay Pivoted to OpenTelemetry

eBay makes a crucial pivot to OpenTelemetry to better align with industry standards for Observability.

Increase A/B Testing Power by Combining Experiments

How the powerful meta-analysis method called "weighted z-test" can help eBay become more efficient.

Increase A/B Testing Power by Combining Experiments

How the powerful meta-analysis method called "weighted z-test" can help eBay become more efficient.

New Buyer Groups Tool Brings Personalized Marketing to eBay Sellers

Sellers in the U.S., U.K., Germany, Australia, France, Italy and Spain now have access to Buyer Groups, a new tool which allows them to segment their buyers to drive more repeat business.

New Buyer Groups Tool Brings Personalized Marketing to eBay Sellers

Sellers in the U.S., U.K., Germany, Australia, France, Italy and Spain now have access to Buyer Groups, a new tool which allows them to segment their buyers to drive more repeat business.

Multi-Objective Ranking for Promoted Auction Items

Determining which promoted auction items to display in a merchandising placement is a multi-sided customer challenge that presents opportunities to both surface amazing auction inventory to buyers and help sellers boost visibility on their auction listings.

Multi-Objective Ranking for Promoted Auction Items

Determining which promoted auction items to display in a merchandising placement is a multi-sided customer challenge that presents opportunities to both surface amazing auction inventory to buyers and help sellers boost visibility on their auction listings.

Sherlock.io: An Upgraded Machine Learning Monitoring System

Billions of queries require new, smarter alerting features.

Sherlock.io: An Upgraded Machine Learning Monitoring System

Billions of queries require new, smarter alerting features.

eBay's Notification Streaming Platform: How eBay Handles Real-Time Push Notifications at Scale

A case study demonstrates how eBay's Notification Engineering team optimizes a streaming system in a microservice architecture to support high-throughput broadcast notifications.

eBay's Notification Streaming Platform: How eBay Handles Real-Time Push Notifications at Scale

A case study demonstrates how eBay's Notification Engineering team optimizes a streaming system in a microservice architecture to support high-throughput broadcast notifications.

Multi-Relevance Ranking Model for Similar Item Recommendation

Buyers reveal a whole range of behaviors and interests when they browse our pages, so we decided to incorporate these additional purchase intent signals into our machine learning model to improve the relevance of our recommended items.

Multi-Relevance Ranking Model for Similar Item Recommendation

Buyers reveal a whole range of behaviors and interests when they browse our pages, so we decided to incorporate these additional purchase intent signals into our machine learning model to improve the relevance of our recommended items.

OpenFeature, With Contributions From eBay, Submitted to CNCF's Sandbox Program

The new open feature flagging standard enables companies to deliver cloud-native applications more effectively.

OpenFeature, With Contributions From eBay, Submitted to CNCF's Sandbox Program

The new open feature flagging standard enables companies to deliver cloud-native applications more effectively.

eBay’s 3rd University Machine Learning Competition: Predicting Shipping Delivery Dates

For our annual ML competition, we challenged university students to predict how many days a carrier takes to deliver packages.

eBay’s 3rd University Machine Learning Competition: Predicting Shipping Delivery Dates

For our annual ML competition, we challenged university students to predict how many days a carrier takes to deliver packages.

Improving Shopping Recommendations for Customers Through eBay’s Relevance Cascade Model

Under the new machine learning model, buyers are recommended items that are more aligned to their shopping interests on eBay.

Improving Shopping Recommendations for Customers Through eBay’s Relevance Cascade Model

Under the new machine learning model, buyers are recommended items that are more aligned to their shopping interests on eBay.

Building a Deep Learning Based Retrieval System for Personalized Recommendations

A step-by-step guide on how to build a state-of-the-art recommender system in an industrial setting.

Building a Deep Learning Based Retrieval System for Personalized Recommendations

A step-by-step guide on how to build a state-of-the-art recommender system in an industrial setting.

How eBay Developed an Automatic Testing Solution for Batch Application Upgrades

A look at how our eBay technologists created an automatic testing solution for batch applications.

Creating High-Quality Staging Data with a NoSQL Data Migration System

At eBay, we’ve focused on improving our staging environment to increase our software delivery speed, which ultimately allows us to launch features faster to our customers. Over the last several months, we’ve raised the quality of our staging data by establishing a dedicated and scalable data migration system.

Expanding the eBay Ads Portfolio with Promoted Listings Express

Sellers can now promote their auction listings on eBay.

A Lightweight Distributed Architecture to Handle Thousands of Library Releases at eBay

A new lightweight distributed architecture is proposed and applied on eBay’s release system to support thousands of libraries release work in high efficiency.

GraphLoad: A Framework to Load and Update Over Ten-Billion-Vertex Graphs with Performance and Consistency

GraphLoad is a scalable graph loading framework eBay developed and deployed in production. It has been loading and updating a graph with over 15 billion vertices and over 20 billion edges since May 2020.

eBay’s Mavenization Strategy of Legacy Domain Business Libraries

A brand new methodology to ameliorate the development and release process for eBay site business

The Staging Dichotomy: Part Two

A two-part series on how eBay turned around an impeding staging environment into its biggest asset for developer productivity.

The Staging Dichotomy: Part One

A two-part series on how eBay turned around an impeding staging environment into its biggest asset for developer productivity.

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

Rethink Modals Management in React

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

eBay Event Notification Platform: Listener SDKs

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

Faster Shipping Speeds for Cross-Border Orders

eBay is making it easier for our customers to ship items faster and know when their items will arrive.

Groot: eBay’s Event-graph-based Approach for Root Cause Analysis

The framework achieves great coverage and performance across different incident triaging scenarios, and also outperforms other state-of-the-art root cause analysis methodologies.

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

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

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.

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.

Simplifying Shipping Signals on eBay

eBay is making it easier for our customers to know when their items will arrive with the new streamlined interface.

eBay's Enhanced Advertising Dashboard

This upgrade to the Advertising dashboard enables sellers to easily check their Promoted Listings performance and leverage valuable insights to scale their businesses.

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.

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.

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.

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.

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.

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.

New Sellers: Getting Started on eBay is Now Even Easier

eBay’s new seller registration process enables anyone to start selling on our modern marketplace with all the necessary tools to reach customers around the world.

Introducing eBay's Automated Promoted Listings Campaigns

Sellers can now use rule-based technologies to both automate how they promote new listings and adjust their ad rates to stay competitive.

eBay Launches Targeted Auto Retry

eBay’s open source Swift package provides powerful resilience against flaky test steps.

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.

eBay Motors & State Management

Learn how we avoided the state management debate when building the eBay Motors app.

eBay Introduces Its New Seamless Unified Listing Experience

The new unified listing experience offers an intuitive and cohesive design across all platforms, simplifying the listing flow and enhancing seller benefits.

How Creating an Agile Code Base Helped eBay Pivot for Apple Silicon

eBay’s native code base has grown and evolved for over 13 years, but is still nimble enough to quickly incorporate the latest features into the app.

How eBay’s Distributed Architecture Surfaces More Item Listings for Buyers

With Buyer Demand Data, eBay sellers can access information on the item specifics buyers are using in their search queries. This insight increases sellers’ completion of item specifics, which in turn further enhances listings’ quality, visibility and sales.

How eBay’s Buy APIs Hit $5 Billion in Gross Merchandise Bought

eBay’s Buy APIs enable third-party developers to surface eBay inventory in their shopping experience, allowing consumers to purchase items without visiting an eBay site.

eBay Launches Marko 5

eBay’s open source JavaScript UI framework modernizes universal web development.

Mathesis: Elements of Learning and Intelligence

A formal and interdisciplinary theory of learning and intelligence that combines biology, neuroscience, computer science, engineering and various branches of mathematics to provide a unifying framework, direction and a broader horizon for neural network and machine learning research.

Consumer Sellers: Getting Paid on eBay Just Got Easier

eBay is expanding its management of payments to consumer sellers over the next year.

Customized Ad-Rate Recommendations Now Available for Promoted Listings on eBay

A new machine-learning tool helps sellers set competitive ad rates for their Promoted Listings, optimizing between cost and performance.

eBay’s Offers to Buyers Feature Hits $1B GMV

Offers to Buyers reaches new milestone this month.

Introducing QR Codes for eBay Shipping Labels

With our new QR codes feature, sellers will no longer need a printer to use eBay shipping labels.

Expanding the eBay Stores Experience to Our Mobile App

The eBay Stores experience is now available on our mobile app for Android and iOS.

An Introduction to Apache Flink

How we’re using Apache Flink to handle big data streaming in real-time.

eBay’s Technology Transformation is Made for Evolving Customer Needs

How our advances in edge computing are empowering both buyers and sellers in times of great demand with ease and agility.

Introducing eBay’s New Time Away Feature to Help Sellers Manage Selling on eBay While on a Break

Time Away is now available to all Sellers and automatically updates the shipping date to make the experience more seamless.

eBay Partners with Google Assistant to Bring Voice Control to eBay’s Android App

A new partnership launches voice control capabilities on our marketplace to meet the needs of our customers by creating a more seamless, modern experience.

An Automatic Mirror Testing Solution for Messaging Systems in eBay

A look at how we developed a solution for automatic mirror testing to overcome the challenges of migrating eBay’s proprietary messaging applications to a more modern technical stack.

Our Online Analytical Processing Journey with ClickHouse on Kubernetes

Learn about the latest evolution of online analytical processing (OLAP) data, now with ClickHouse on Kubernetes.

High Efficiency Tool Platform for Framework Migration

The eBay framework teams implemented a brand new tool platform to proceed framework level migration. It supports in-scope V3 stacks migration to Raptor/Raptor.io with high efficiency, which has been proven by the success stories of Batch, SOA, Trading/Shopping API and BES migration.

Software Quality: Elevating the Game

Learn how software product quality goes well beyond simply avoiding bugs.

eBay Helps Buyers More Easily Discover Competitively Priced Items

eBay recently launched a new feature that helps buyers find things easily on the Search page by highlighting competitively priced items from trusted sellers.

eBay Motors: Accelerating With Flutter™

The UI software development kit enables a consistent user experience across iOS and Android.

eBay Virtual Tracking Number Now Live in the UK and Australia

eBay’s unique code flows through Royal Mail and Australia Post networks, automating provision of eligible tracking and event data for buyers and sellers.

Building a Product Catalog: eBay's 2nd Annual University Machine Learning Competition

Participating universities will structure listing data to help solve a real-world ecommerce challenge.

An eBay Charity Perspective for Developers

This article explores charity support in Public APIs and hypothetical integration scenario walkthroughs for developers who wish to integrate with eBay for Charity in their eBay-powered experiences.

The Journey to Integrating Android App Bundles

Over the last few years, our Native Mobile Architecture team has been reshaping our native app experience to better align with evolving mobile standards.

Terapeak Research 2.0 - Making the Data Processing Pipeline Robust

How the data processing pipeline functions in Terapeak and what factors make it fault tolerant, robust and highly available.

Kubernetes Secrets: A Secure Credential Store for Jenkins

At eBay, we containerized Jenkins to provide a continuous build infrastructure on Kubernetes Clusters to power the ecommerce marketplace experience. Our goal was to leverage the capability of Kubernetes secrets, for managing the Jenkins credentials.

eBay’s Image Clean-Up Feature Brings the Power of Image Processing Algorithms to Android

This feature enables our sellers to create cleaner listings.

eBay Makes Promoted Listings in Search Results More Relevant and Dynamic

The Promoted Listing algorithm continues to build revenue for the marketplace and makes sellers happy.

Celebrating 20 Years: eBay’s New APIs Enable Developers to Create Modern Buying and Selling Experiences

eBay launches APIs for Managed Payments, Seller Initiated Offers, Charity and more for developers to help their businesses thrive.

How We Used Our Buy APIs, Catch Platform to Build a New Portal for the NHS

In partnership with the U.K. National Health Services, we leveraged our Buy APIs and Catch platform to build a new portal to deliver personal protective equipment to frontline health care workers.

eBay Launches Secure Local Pickup To Simplify The Shipping Experience

The enhanced feature enables buyers to purchase items online and pick up directly from sellers in their vicinity.

eBay Makes Search More Efficient Through Personalization

eBay introduces Best Match to personalize buyers’ search feeds.

Dark Mode Now Live on eBay Native Apps

eBay becomes one of the first ecommerce companies to launch Dark Mode on iOS and Dark Theme on Android.

Streamlining Language Technology from Idea to Deployment

In recent eBay Tech Blog articles, we presented the Unified AI platform called Krylov and our pythonic tool to interact with the platform, PyKrylov. In this article, we introduce our Natural Language Processing framework built on top of the AI platform.

eBay Integrates Video into the eBay Motors App

The eBay Video Platform will allow sellers to add in videos of the cars they are selling on the eBay Motors App.

Building a Product Catalog: What we Learned from our University Machine Learning Competition

We challenged more than 100 college students at seven universities to structure listing data using AI and machine learning.

Relation Embedding with Dihedral Group in Knowledge Graph

eBay researchers recently published a paper about a method for KG relation embedding using dihedral group. Experimental results on benchmark KGs show that the model outperforms existing bilinear form models and even deep learning methods.

Resiliency and Disaster Recovery with Kafka

Multi-Region Kafka Setup Using MirrorMaker 2.0

Auto Effect Pattern with Redux and React Hooks

A pattern for managing HTTP requests with Redux and React hooks. It separates concerns of data fetching and binding logic from components into hooks to make it easier to use.

Front End Debugging — Tips on Resolving Issues Quickly so You Can Move on to Better Things

How did you get here? Have you been staring at the screen for days debugging a mysterious problem that makes no sense? The head-banging is probably making you dizzy and even more frustrated. Now, move away from that wall and read on. I am going to share some debugging tips that will help you.

Homepage Speed Improvements on eBay Android

In this blog, we discuss strategies to improve application speed.

A Human-centric Approach for Evaluating Visual Search Models

Part of our mission within Core AI at eBay is to develop computer vision models that will power innovative and compelling customer experiences. But how can we compare several visual search models and say which of them works better? This article will describe a method that is tackling this problem directly from the eyes of the users.

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.

eBay Motors: Screenshot Testing with Flutter

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

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.

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.

A Learning Culture to Propel Innovation

A test-and-learn culture is key to building the best experiences for our customers.

eBay Uses Computer Vision to Enable Sellers to Create Cleaner Images

We built an algorithm that lets users change the background of their listing photos.

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.

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)?

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.

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.

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.

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.

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.

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.

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.

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.

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.

eBay’s Buy APIs Hit $1B in GMB

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

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.

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.

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.

eBay Makes Mobile Web Login Easier

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

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.

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.

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.

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.

Building a Product Catalog: eBay's University Machine Learning Competition

Trade has played a critical role in the history of humanity and yet, data from ecommerce, the modern form of trading, has received limited attention from academia. We at eBay want to change that.

Scalability Tuning on a Tess.IO Cluster

Tess.IO is eBay’s new unified cloud infrastructure based on Kubernetes. With more and more applications being deployed on the Tess cluster, the requirements for scalability and capability of the cluster are growing. This article describes how to achieve 5000-node scalability for the tess.IO cluster.

eBay’s Multi-User Account Access is Now Live to all Sellers* in the U.S.

eBay is enabling sellers to better manage their business by securely granting access to employees to create drafts, edit and launch listings on their behalf.