Promptfoo - Join Our Team!
Open Roles: Senior/Staff Engineers, Security Researchers, GTM & Founding Operators
Location: REMOTE (North America) / Hybrid San Mateo, CA
About Promptfoo:
Promptfoo is an open-source toolkit (MIT-licensed) used by 125,000+ developers to evaluate and secure LLM apps. We recently closed an $18.4M Series A led by Insight Partners with participation from a16z and are scaling a small, senior team of high-agency builders.
Open Positions:
- Senior / Staff Full-stack Product Engineer (TypeScript + Python)
- Senior / Staff AI Security & Red-Team Engineer
- Solutions Architect / SE (multiple)
- Product Marketing Manager (cyber focus)
- Enterprise Account Executive (Bay Area, multiple)
- Technical Writer
- Developer Advocate
Why Join Promptfoo?
- Build the definitive AI security stack already used at 30+ Fortune 500s.
- Work in open source.
- Competitive salary, meaningful equity, and an async-friendly culture of ownership.
How to Apply:
-
Skim https://github.com/promptfoo/promptfoo then run:
npx promptfoo@latest init --example getting-started -
Email careers@promptfoo.dev with the subject "HN – July 2025", a short intro, and a GitHub / LinkedIn link.
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We reply to every thoughtful application and send swag to anyone who tries or contributes to Promptfoo.
Learn More:
- Careers Page: https://www.promptfoo.dev/careers/