Principal Software Engineer
Microsoft Corporation · Redmond, WA
$142,800–$274,800from the description
Jul 11, 2026
Redmond, WA
Jul 21, 2026
What this job asks for AI summary
A principal-level engineering role focused on building shared platforms and AI-assisted developer tooling for Microsoft's Security division. The work centers on consolidating fragmented engineering infrastructure into reusable systems — covering build, validation, observability, and experimentation — and embedding agent-based workflows into everyday development practice. It suits engineers with deep experience in developer platforms and large-scale infrastructure who can translate ambiguous productivity challenges into measurable, organization-wide capabilities.
Senior level · 6+ years · Seattle-Tacoma-Bellevue, WA · Full-time
Advertised as Principal, but the requirements read as Senior.
“or” means any one of them counts — you don't need all of them.
We read this from the posting text with AI. Skim the description below before ruling yourself out.
How this req sits in the market our data
Roughly 9,900 people in the Seattle-Tacoma-Bellevue, WA area plausibly meet what this posting asks for (software developers). range 7,400–12,900
Applicant volume Heavy — This req sits in a large pool with little in its requirements to thin it, and auto-apply tools fire at everything in the occupation. Applying early and leading with the rare skills below is what gets read.
Most people in this occupation already list these. Still required — just not what gets you shortlisted.
What the occupation pays Median $170,959 (middle half $135,720–$216,519). This posting is about at that midpoint.
Estimated from BLS employment for this occupation and area, per-skill prevalence across our listing corpus, and published wage benchmarks — as of Jul 28, 2026. It is a model, not a headcount.
Why we read it this way (6)
The role is internally leveled as IC5 (Individual Contributor 5), which maps to Principal Software Engineer in Microsoft's career framework — hence the 'Principal' advertised title. However, the actual requirements (6+ years experience, one coding language gate) support a Senior-level assessment; the scope is ambitious but the hard gates are modest.
The coding language requirement lists C, C++, C#, Java, JavaScript, and Python as examples ('including, but not limited to'), so C is emitted as the primary with the others as alternatives. Any one of these satisfies the gate.
A Bachelor's degree in CS or a related field is listed as a required qualification, but the JD explicitly accepts 'equivalent experience' in lieu of the degree, so the degree requirement is set to None.
The Microsoft Cloud Background Check is a screening/onboarding requirement, not a US government security clearance — the clearance requirement is None.
Agent-based systems, human-in-the-loop design, developer platforms, and large-scale engineering infrastructure are described as desired expertise in the narrative but no specific named technologies are gated on beyond the coding language requirement. LLMs, CI/CD, and observability are surfaced as preferred based on the responsibilities and context sections.
The primary work location is not explicitly stated; Microsoft Security is headquartered in the Seattle metro area, so Seattle-Tacoma-Bellevue, WA is used as the CBSA. A separate pay range is noted for San Francisco Bay Area and New York City metro ($188,000–$304,200/year); the standard US range ($142,800–$274,800/year) is reported here.
Read the full posting
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