Résumé – Antoine Courbot

Mar 2025 – Present

Lead a team of 9 engineers across New York and San Jose, owning the seller experience for live events and inventory management, focused on removing friction for sellers moving from core marketplace to live
Partnered with product and design to ship 20+ seller improvements in under a year, including Quick Listings (listing in seconds, not minutes), Video Receipts (every purchase tied to its moment in the live event), Order Attribution, and Flash Deals
Halved latency on key seller flows, with Prometheus and Grafana monitoring and alerting to keep them fast
Stayed hands-on: contributed backend changes and reviewed pull requests daily
Drove AI adoption through demos, so engineers found and owned their own use cases

Mar 2023 – Mar 2025

Led a team of 5 engineers while remaining the platform's architect
Architected and built a unified Advertising Platform for 1st Party (Promoted Listings, Promoted Stores) and 3rd Party Ads, where multiple prior efforts had stalled. Two foundations: streaming serving across all eBay traffic (130M+ active buyers), holiday peaks included, with near-zero page load impact; and observability tracking each ad's lifecycle from client to ad provider. Still in production today
Built a wide range of plug-and-play business libraries for any ad supplier (user lookup, categories, and more)

Mar 2013 – Mar 2023

Built eBay's 3rd Party Ads server-to-server RTB solution: real-time bidding protocols, high-throughput API endpoints, and auction infrastructure
One of the first engineers on Promoted Listings, partnering with product to grow it from $10K to millions in daily revenue by blending paid listings into organic recommendation flows such as Similar Items
Rebuilt eBay's merchandising engine: rewrote the legacy recommendation algorithms with loose coupling and full test coverage, then integrated Hunch's taste graph after the acquisition so both algorithm families ran on one extensible backend
Promoted for technical depth and cross-team influence; served as Scrum Master

Sep 2011 – Nov 2012

Primary developer across 3 consumer products (web + iOS), iterating fast under lean startup principles to find product-market fit

Oct 2010 – Aug 2011

Architect, Scrum Master, and lead developer on the Smart Message Project, routing M2M device data to enterprise applications in real time (team of 8)

Nov 2007 – Sep 2010

J2EE backend and UI delivery for Orange Labs, Schneider Electric, and EDF (Spring, Hibernate, Struts2, Oracle) across metering and energy management platforms

Antoine Courbot