Cover Letter for Microsoft — Example & Writing Guide for 2026

Dear Microsoft Hiring Team,

Azure Container Apps shipped its scale-to-zero update last quarter, and the underlying Knative work is exactly where I've spent the last three years of my career. I'm writing because the role on the Azure compute team maps directly to that experience.

I'm a senior software engineer with six years building serverless and containerized infrastructure. At my current company I led the migration of our core API from a monolith to a Knative-based platform serving 40M monthly users. The migration shipped two months ahead of plan and reduced our compute spend by 60% — but the more important outcome was the postmortem on the SEV-1 we hit at week three, which became my team's reference doc on how to roll out scale-to-zero safely. I write Go and Python daily, run our weekly architecture review, and have mentored two engineers to senior promotions.

What I'd bring to Microsoft is the breadth of perspective that comes from running into hard things on the way down — not just up — combined with the discipline to ship enterprise-quality work. I read carefully, write clearly, and take customer feedback as the most reliable signal we have.

I'd welcome the chance to discuss the role. Thank you for the consideration.

Best regards,

Your Name