On AI:AM

Justin McCarthy

Founder & CEO, Diffusion

Justin McCarthy is founder and CEO of Diffusion, which builds "software factories" inside large enterprises — systems where operators describe desired outcomes and agents implement and evaluate the software. He previously co-founded StrongDM and served as its CTO, where he built the company’s software factory under two rules he wrote down in February 2026: code must not be written by humans, and code must not be reviewed by humans. StrongDM raised a $34M Series C in 2024 and was acquired by Delinea in a deal that closed in March 2026.