About the Role The Ad Supply team is the engine of Consumer Experience for Uber's Offsite Ads business. We are responsible for expanding Uber's advertising reach beyond our native apps, creating intentful sessions for users across the open web. As a Staff Software Engineer , you will lead the technical vision for how Uber's premium ad formats are dynamically rendered and integrated into external environments. This isn't about maintaining legacy systems. You are building the foundational supply layer for a brand-new business vertical at Uber. This is a high-impact, full-stack role where you will bridge the gap between Uber's internal ad-serving infrastructure and the vast ecosystem of third-party channels. You will architect the systems that deliver