Senior Software Engineer, Offsite Ads

Senior Software Engineer, Offsite Ads Department: Engineering Team: Fullstack Location: San Francisco, United States Type: Full-Time **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 **Senior Software Engineer**, you will enable 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 "shoppable" and intent-driven ad experiences, ensuring they are as seamless and performant on an external site as they are within the Uber app. **What You'll do** - **Expand Reach:** Build and maintain the technical infrastructure required for **channel expansion**, enabling Uber Ads to launch on new external surfaces rapidly. - **Optimize Consumer UX:** Implement **onsite UX improvements** and "shoppable" features that turn a simple ad click into a high-intent user session. - **Deliver High-Quality Code:** Act as a primary contributor to our offsite web SDK and supply-side backend services, ensuring high reliability and sub-100ms response times. - **Collaborate Across Pods:** Work with the Ad Delivery pod to ensure identity matching is seamless and with the **Tooling** pod to surface reporting data. - **Mentor Junior Talent:** Help grow the team by providing thoughtful code reviews and assisting in the onboarding of new engineers. **Basic Qualifications** - **Experience:** 5+ years of professional software development experience, with a strong focus on high-traffic web applications. - **Full Stack Capabilities:** Deep proficiency in **React, TypeScript, and Node.js**. You should be comfortable managing complex state and b