I'm at OpenAI. Previously, I co-founded Promptfoo, an open-source tool for LLM security, red-teaming, and evaluation used by 500K+ developers.
Before that, I was VP of Engineering at Smile ID, and co-founded Arthena and Matroid. Stanford ICME grad, YC alum.
I use @mldangelo-oai for my work at OpenAI.
- Codex Security - open-source tools for finding, investigating, and fixing security vulnerabilities
- Promptfoo - LLM red-teaming, evals, and security
- Personal Site - open-source portfolio template (1000+ forks)
- AI agents
- LLM security
- Evals and observability
- ML infrastructure