How is AI transforming product development inside large-scale organizations? What does it look like when teams move from Product Requirements Documents to rapid prototyping? And how are roles, workflows, and decision-making changing in our increasingly AI-first world?

On this episode of Where AI Works, host Matthew Bidwell sits down with Paul Stathacopoulos, Vice President of Product for Focus Categories and International Cross Border Trade at eBay, to find out how AI is reshaping the way products are built and delivered inside one of the world’s largest online marketplaces. Together, they explore how eBay is using AI across three key areas: improving customer-facing experiences, unlocking insights from massive datasets, and fundamentally transforming product development workflows. They also discuss the shift from traditional PRDs to rapid, AI-generated prototypes, and how “vibe coding” is enabling teams to test ideas with customers in a period of days instead of months. Finally, they unpack how AI is blurring roles across product, design, and engineering, and why adopting an AI-first mindset is critical to staying competitive in a rapidly evolving landscape.

Episode Highlights:

4:51 - Paul explains how eBay is harnessing AI to move beyond the traditional product requirements documents to “vibe coding” rapid prototypes in dramatically shorter time-frames.

10:03 - Paul shares how AI agents work alongside humans to ensure compliance, governance, and quality, illustrating that AI isn’t a set-it-and-forget-it solution.

17:51 - Paul discusses how Bay has redesigned the selling workflow from scratch using AI, leading to one of the most impactful test cases in company history.

21:46 - Paul emphasizes the importance of embedding AI into workflows early, rather than as an afterthought, to build skill and muscle memory across teams.