Senior Software Engineer, Internal Tools
Chan Zuckerberg Initiative · Redwood City, CA
$190,000–$238,000from the description
Jul 20, 2026
Redwood City, CA
Jul 22, 2026
What this job asks for AI summary
A senior individual-contributor engineering role focused on building internal tools and AI-powered workflows for business teams. Day-to-day work involves designing and shipping full-stack production applications, custom LLM agents, and retrieval/knowledge infrastructure that integrates with enterprise SaaS systems. The role suits an experienced engineer comfortable owning systems end-to-end with minimal oversight, working closely with business stakeholders on a small, senior team.
Senior level · 5+ years · San Francisco-Oakland-Hayward, CA · Full-time
“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 85 people in the San Francisco-Oakland-Hayward, CA area plausibly meet what this posting asks for (software developers). range 35–130
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.
What the occupation pays Median $190,744 (middle half $167,095–$224,501). 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 (8)
The role is based in Redwood City, CA; the closest CBSA is San Francisco-Oakland-Hayward, CA (41860), as Redwood City falls within that metro area.
The posting requires hybrid presence (~3 days/week onsite), so remote=false.
MCP (Model Context Protocol), LLM tool/function calling, agent frameworks, and retrieval/knowledge infrastructure (knowledge graphs, vector stores, RAG) are all listed together in the required 'What You'll Bring' section and treated as hard gates.
AWS/Terraform appear only under the 'Nice to have' section and are marked preferred accordingly.
The 'full-stack engineering' skill captures the explicitly required 'strong full-stack engineering fundamentals' gate; no specific framework or language is named in the requirements.
Enterprise SaaS API integration experience (auth, rate limits, schema drift, failure modes) is a stated hard requirement but names no specific tool — captured under REST APIs as the closest concrete technology anchor.
No degree requirement is stated anywhere in the posting.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): full-stack engineering.
Read the full posting
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