Senior Staff AI & Agentic Systems Engineer
Mozilla
$195,000–$260,000
Jul 9, 2026
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Jul 21, 2026
What this job asks for AI summary
A staff-level engineering role focused on building AI agent infrastructure from the ground up within an early-stage internal product team. The work centers on designing multi-agent frameworks, integrating and optimizing large language models, and establishing evaluation and benchmarking systems for autonomous workflows. It suits a senior engineer with hands-on production experience in agentic systems and a background in fast-moving, early-stage environments.
Staff level · 7+ years · Remote · Full-time
Pay in the description: $195,000–$260,000
“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 2,550 people nationally plausibly meet what this posting asks for (software developers). range 1,050–3,800
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 $138,970 (middle half $107,524–$175,762). 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 (9)
The posting lists three US compensation tiers: Tier 1 $195,000–$260,000, Tier 2 $179,000–$239,000, Tier 3 $166,000–$221,000 USD/year. The highest (Tier 1) range is reported in the comp fields.
The role is fully remote (#LI-REMOTE) with no specific metro or state listed; CBSA fields are left blank accordingly.
The 2+ years of hands-on agentic/autonomous workflow experience is stated as a distinct requirement separate from the 7+ years of overall software engineering experience.
LangChain is named first among orchestration frameworks ('LangChain, LangGraph, CrewAI, AutoGen, or similar'); the others are captured as alternatives since the JD treats them as interchangeable options for the same requirement.
AI coding tools (Cursor, Copilot, or custom LLM extensions) are required under 'What You'll Bring' with firm language ('deep, everyday proficiency'); Cursor is used as the primary name with Copilot as an alternative.
Vector databases, RAG, SDK/developer-facing product experience, and open-source AI framework contributions appear under 'Bonus Points For' and are marked as preferred.
The Staff title and scope (cross-team technical anchor, setting architectural patterns for an entire AI engineering effort from scratch) genuinely support a Staff-level classification, not merely Senior.
Ignored 1 non-technology phrase(s) as skills (responsibilities/concepts, not named tools): open-source AI frameworks.
This posting reads as a fully-remote role, so it was scored against the national candidate pool rather than a single metro.
Read the full posting
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