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 28 October 2026.

Apply on apply.careers.microsoft.com →

About the role

Overview Microsoft 365 Copilot is a groundbreaking productivity tool that leverages the power of large language models, user data, Microsoft Graph, and the web to drive unparalleled creativity and productivity. At the heart of this innovation is the Agent platform, which designs…

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

What this role asks for

Particular to this role

Excel · LLM

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 235 open in Software Engineering. 167 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

C++ (217 of 235), Python (215 of 235), C# (210 of 235), Java (204 of 235), C (203 of 235), JavaScript (193 of 235), Azure (143 of 235)

OTHER ROLES ON THIS TEAM

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

Other openings for this role

18 postings for this role in United States, Washington, Redmond since 26 October 2026, 16 still open. None has been taken down and posted again.

Salary context

71 other open postings titled Principal Software Engineer state a salary: median USD 185,000 to USD 274,800 a year.

See Software Engineer salaries in the United States →

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SKILLSPython 46,049LLM 18,554JavaScript 15,270Java 13,821
PLACESWashington 1,341Washington State 4,283United States 72,219
COMPANYJobs at Microsoft 813

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