Microsoft

Principal Software Engineer

United States, Washington, Redmond
Salary
$142,800 - $274,800 per year
Level
Principal
Work type
On-site · Washington

Not stated in the posting: visa.

Open. First seen 3 November 2026.

Apply on apply.careers.microsoft.com →

About the role

Overview Cloud operations are entering a new era. COSMIC is building agentic infrastructure that helps engineers define goals, policies, and operational intent while autonomous systems safely execute routine work across Microsoft’s largest Kubernetes fleets. Part of M365…

Read the full posting on apply.careers.microsoft.com

What this role asks for

Particular to this role

Kubernetes · Zero Trust

Rare in Microsoft's other 299 open postings.

Standard for software engineering roles

Python

Common in software engineering postings at any company.

Compared with Microsoft's other open jobs.

The team: Software Engineering HIRES STEADILY

This role is one of 371 open in Software Engineering. 246 were posted in the last 30 days and the oldest in January: a team that hires all year rather than one being built.

WHAT THE TEAM WORKS WITH, ACROSS ITS POSTINGS

Python (333 of 371), C++ (332 of 371), C# (325 of 371), C (309 of 371), Java (307 of 371), JavaScript (294 of 371), Azure (210 of 371)

OTHER ROLES ON THIS TEAM

From the team and dates on Microsoft's own job board.

Posting history

Reposted 6 times since 26 October 2026: a posting for this role in United States, Washington, Redmond was taken down and the role was posted again.

Salary context

87 other open postings titled Principal Software Engineer state a salary: median USD 154,050 to USD 274,800 a year.

See Software Engineer salaries in the United States →

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SKILLSPython 46,891Kubernetes 16,348JavaScript 15,496Java 14,191
PLACESWashington 1,547Washington State 4,527United States 73,606
COMPANYJobs at Microsoft 1,254

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