Principal Applied Science Manager - Foundation Models, Agents & Trust Systems

Full-time other-general

**Overview**

**About the Role**

Microsoft Advertising serves ads across search, native, display, video, commerce, and emerging AI-powered experiences. Protecting these ecosystems requires decision systems that can understand advertisers, content, behavior, intent, landing pages, identities, and marketplace activity across every modality.

We are seeking a **Principal Applied Science Manager** to lead the science organization responsible for risk, editorial quality, moderation, policy enforcement, and Responsible AI across Microsoft Advertising.

The team will build the next generation of intelligent decision systems, including:

+ Foundation models for advertiser behavior and risk.
+ Foundation moderation models spanning text, image, video and multimodal experiences.
+ Deep-research agents that investigate complex cases, gather evidence, reason across signals, and assist automated and human decision-making.
+ Tiered enforcement syste...