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 29 October 2026.

Apply on apply.careers.microsoft.com →

About the role

Overview How do you know an AI product is actually getting better—and how do you prove it at scale, before millions of people experience the difference? We build and operate the offline evaluation platform that gates Microsoft Copilot’s quality. Teams across Copilot depend on us…

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

What this role asks for

Particular to this role

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 250 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++ (232 of 250), Python (230 of 250), C# (224 of 250), Java (219 of 250), C (217 of 250), JavaScript (207 of 250), Azure (148 of 250)

OTHER ROLES ON THIS TEAM

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

Posting history

Reposted once 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

74 other open postings titled Principal Software Engineer state a salary: median USD 176,300 to USD 274,800 a year.

See Software Engineer salaries in the United States →

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PLACESWashington 1,355Washington State 4,306United States 72,300
COMPANYJobs at Microsoft 849

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