**Overview**

Microsoft Substrate is the foundational cloud platform that powers many of Microsoft’s most critical services including Exchange Online and M365 Copilot, providing shared infrastructure, identity, messaging, storage, and service-to-service capabilities used across Microsoft 365 and related cloud offerings. Substrate services operate at global scale and are designed to deliver high availability, reliability, and security for some of the world’s most demanding workloads.

As a **Site Reliability Engineer II** , you will take ownership of reliability and operational outcomes for specific components or services. You will independently diagnose and resolve production issues, design and implement automation to reduce toil, and contribute to service improvements that enhance availability, scalability, and efficiency.

This role requires deeper technical judgment, stronger software engineering fundamentals, and close collaboration with partner teams to en...