Microsoft

Principal Software Engineer - AI Infrastructure

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 Help build the infrastructure that trains the next generation of agentic Artificial Intelligence (AI) models at Microsoft. The Cloud + AI (C+AI) organization builds the end-to-end AI stack that powers innovation across Azure and Microsoft. The Foundry, Inference and…

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

What this role asks for

Particular to this role

AWS · GCP · Hugging Face · Kubernetes · LLM · PyTorch

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

  • 3 November 2026 – open (this posting)
  • 26 October 2026 – closed 2 November 2026

See Software Engineer salaries in the United States →

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