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 27 October 2026.

Apply on apply.careers.microsoft.com →

About the role

Overview AI agents are rapidly becoming foundational across industries, transforming how organizations automate workflows, make decisions, and scale productivity. Unlike traditional prompt-based systems, modern agents can reason, plan, and take actions autonomously, unlocking…

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

What this role asks for

Particular to this role

LLM · Test Automation

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 160 open in Software Engineering. 113 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++ (149 of 160), Python (149 of 160), C# (146 of 160), Java (143 of 160), C (141 of 160), JavaScript (134 of 160), Azure (94 of 160)

OTHER ROLES ON THIS TEAM

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

Other openings for this role

13 open postings for this role in United States, Washington, Redmond, first posted 26 October 2026. The company is likely hiring for more than one position. None has been taken down and posted again.

Salary context

67 other open postings titled Principal Software Engineer state a salary: median USD 195,000 to USD 274,800 a year.

See Software Engineer salaries in the United States →

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