In the leading engineering organizations, a single engineer now supervises teams of agents, migrations scoped for years close in weeks. The teams pulling ahead are operating a software factory: an integrated system of agents that share context across the entire SDLC. In this session, Ross Cefalu offers a field guide to that operating model and how it runs at scale: what each stage looks like in practice, what shifts for engineers as they move from writing code to stewarding the system, and the hard truths that decide whether a factory compounds, starting with why the infrastructure and processes you built for humans set the ceiling on what agents can do.