Develop and operate production machine learning systems for search and advertising, including relevance, yield optimization, bidding, ranking, recommendation, and ad selection. Own the ML lifecycle from data acquisition and prototyping through deployment, monitoring, optimization, and maintenance. Build low-latency, high-throughput services, feature pipelines, MLOps frameworks, experimentation platforms, and scalable microservices using modern machine learning, deep learning, and reinforcement learning techniques.

As a Lead Machine Learning Engineer, you'll manage AI/ML projects, optimize models, enhance ad-serving platforms, and mentor junior engineers.