Microsoft interviews emphasize:
Enterprise scale: Office serves hundreds of millions. Think about multi-tenancy, compliance, and enterprise features.
Azure integration: Know Azure services (Cosmos DB, Service Bus, Azure Functions). Not required, but shows domain knowledge.
Backward compatibility: Enterprise customers can't break. Versioning, migrations, and deprecation policies matter.
Security focus: Enterprise means authentication, authorization, audit logs. Zero trust architecture.
Interview style: Often more collaborative. May have multiple interviewers. Expect follow-up on enterprise concerns.