Staff Machine Learning Engineer, Ads Auction

This role is a senior technical position within a high-impact Ads Marketplace team, responsible for shaping and optimizing the auction and pricing mechanisms that drive ad performance and revenue. You will apply machine learning expertise to improve marketplace efficiency, enhance user experience, and maximize advertiser value. The position requires deep knowledge of ad-tech, large-scale data systems, and end-to-end ML workflows, from feature engineering to model deployment. You will influence technical strategy, lead cross-functional initiatives, and mentor engineers while driving measurable impact across the ad ecosystem. This role offers the opportunity to innovate on high-visibility projects and help define the future of a sophisticated advertising platform.