Principal Product Manager, M365 Core

Microsoft 365 is the world's leading productivity service, trusted by hundreds of millions of users worldwide. Microsoft 365 Core Platform is at the center of it all. We are building foundational intelligent productivity services, including Copilot, for enterprises spanning emails, calendars, files and messages. Building and running services for all of Microsoft 365 is both impactful and rewarding. The experiences built on top of our platform positively impact the lives of millions of people around the world, empowering them to do more and achieve more. The Microsoft 365 Core team is responsible for ensuring that the M365 services are always highly available, resilient, durable, performant, compliant and efficient. As Copilot, Agent 365 and Microsoft Graph accelerate into new agentic and AI-driven scenarios, the demands on our platform are changing faster than ever. We are looking for a Principal Product Manager to own the product vision and strategy for M365 Fleet Infrastructure, including Data Availability, Durability, Reliability, Data Protection, Resource Efficiency, Capacity Modeling, Infra Provisioning and Decommissioning, Platform Degradations, and Modernization via Azure. This role requires someone who can think in systems, operate at executive altitude, and drive alignment across a large, matrixed organization — translating deep platform complexity into clear strategic direction for engineering and partner teams. The primary lens for everything this role owns is enabling the platform to scale for the AI and agentic era.