Senior Product Manager

Microsoft 365 carries a large share of the world's business communication, and almost none of it reaches a mailbox without passing through Substrate Transport. We are looking for a Senior Product Manager to own a core area of that pipeline: to set its direction, define what we build, and carry the work through to an outcome that customers and the business can measure.

This role suits someone comfortable with depth. The problems are technical, the systems are hyper scale and long-lived, and the right answer usually depends on evidence you go and find yourself. In return you get genuine ownership of a service every Microsoft 365 customer depends on, and a team that expects you to lead rather than coordinate.

The team's scope follows the full path a message takes: submission and ingestion, routing and categorization, policy and compliance enforcement, hygiene and anti-abuse controls, and final delivery to a mailbox or an external destination.

This position is based at the Redmond campus with 3 days per week work in the office and 2 days per week work from home.