Principal Engineer, ML

Responsibilities Define and drive the long-term technical vision, architecture, and strategy for the Ads Serving & ML Platform. Lead the design and evolution of large-scale advertising systems covering retrieval, ranking, auction, targeting, pacing, and measurement. Drive modernization involving large language models, generative AI, real-time inference, and next-generation ML infrastructure. Lead strategic technical investments that improve advertiser outcomes, customer experience, scalability,…