(USA) Principal, Software Engineer at Walmart
Bellevue, WA
$132,000–$264,000from the description
Jul 29, 2026
Bellevue, WA
Sep 24, 2026
What this job asks for AI summary
A hands-on platform engineering leadership role on Walmart's Marketplace Engineering team, focused on designing and delivering scalable, cloud-native architectures and AI/ML-integrated systems for the Seller and Channel Partner Portal and Marketplace API gateway. The role spans the full software development lifecycle across multiple teams, requiring deep expertise in Java, Python, and ReactJS alongside strong technical mentorship and cross-functional collaboration skills.
Senior level · 7+ years · Seattle-Tacoma-Bellevue, WA · Full-time
Advertised as Principal, but the requirements read as Senior.
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 530 people in the Seattle-Tacoma-Bellevue, WA area plausibly meet what this posting asks for (software developers). range 400–690
Applicant volume Moderate — A normal amount of company. The rare requirements below are what will separate a shortlisted application from the rest.
Rare in this occupation — lead with these, and say what you built with them.
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 Aug 1, 2026. It is a model, not a headcount.
Why we read it this way (6)
The title is 'Principal Software Engineer' but the actual requirements — 5 years with a Bachelor's (Option 1) or 7 years total (Option 2) — support a Senior-level band at most; the Principal advertised seniority reflects the title only.
C++ appears alongside Python and Java in the 'What you'll bring' requirements section as languages for AI/ML integration, so it is treated as a hard gate despite being an unusual pairing with Java/ReactJS web work.
ReactJS is mentioned in the team description ('About the team') as part of the stack rather than in a requirements or qualifications section, so it is treated as preferred context rather than a hard gate.
WCAG 2.2 AA accessibility knowledge appears under the Preferred Qualifications section and is therefore preferred.
The role carries significant mentorship and cross-team leadership responsibilities, making 11-3021 (Computer and Information Systems Managers) a plausible runner-up, but the posting emphasizes hands-on design, coding, and architecture delivery, pointing to 15-1252 as the primary classification.
Minimum qualification Option 1 accepts a Bachelor's degree plus 5 years, or Option 2 accepts 7 years with no degree — the degree requirement is set to None because equivalent experience is explicitly accepted.
Read the full posting
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