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 5 November 2026.

Apply on apply.careers.microsoft.com →

About the role

Overview We are looking to welcome a Principal Software Engineer to a group of innovative, energetic and diverse engineers on the CoPilot Runtime Platform team, which is the engineering organization responsible for the foundational platform powering Microsoft 365 Copilot. We…

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

What this role asks for

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 407 open in Software Engineering. 275 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++ (366 of 407), Python (364 of 407), C# (356 of 407), C (339 of 407), Java (338 of 407), JavaScript (322 of 407), Azure (231 of 407)

OTHER ROLES ON THIS TEAM

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

Posting history

Reposted 9 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

92 other open postings titled Principal Software Engineer state a salary: median USD 143,342 to USD 274,800 a year.

See Software Engineer salaries in the United States →

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COMPANYJobs at Microsoft 1,329

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