Sar Haidar is a senior DevOps engineer at MIT with 20 years in infrastructure and endpoint management, including earlier roles as an IT manager. He has spent 15 years at MIT, nearly a decade of them building MIT Open Learning's infrastructure. Independently, he writes about digital identity and agentic AI in Synthetic Auth, his newsletter and essay series, and speaks on both at identity conferences. He also created an LLM-driven benchmark of identity vendors and builds AI-assisted security tooling.