CJ Na is co-founder of Carvis AI, building agentic workflows that automate vehicle repair estimation for auto shops. Carvis deploys specialized AI agents in production — from a Chrome extension that fills repair orders inside shop management systems, to backend agents that generate estimates constrained against automotive parts catalogs. The system processes real repair orders daily with a multi-dimensional eval pipeline gating every prompt change. Before Carvis, CJ built production systems across fintech and SaaS. He's focused on the hard problem of making AI reliable enough for non-technical users in high-stakes workflows.