Principal Applied Scientist- Foundation Models, Agents & Decision Intelligence

Overview About the Role Microsoft Advertising is building the next generation of AI systems for understanding advertiser behavior, detecting anomalies and emerging threats. We are looking for a Principal Applied Scientist with a strong foundation in mathematics, statistics, and core machine learning to advance: Foundation models for behavioral, content, entity, and risk understanding. Anomaly detection and threat modeling for new and evolving abuse patterns. Decision uncertainty modeling across models, agents, workflows, and human review. Tool-using agents that investigate cases, gather evidence, and support automated and human decisions. Rigorous evaluation of models, agents, and end-to-end decision systems.…