Brian Casel is a multi-time founder, product designer, developer, and educator who teaches AI-first development workflows through Builder Methods, his content and education platform. Through his YouTube channel, newsletter, and Builder Methods Pro membership, Brian helps developers and founders adopt spec-driven, agentic approaches to building software — working alongside AI, not just with it. He's been deep in the trenches building his own AI agent systems and developing methodologies for shipping real products faster with AI coding tools.
