Founding Engineer
Cardinal, San Francisco, California
The role
As a Founding Engineer, you'll architect and build the core AI agents and infrastructure that power precision outbound at scale — then make them accessible through beautiful, intuitive interfaces. You'll work directly with customers, shape product direction, and own critical systems that drive revenue for 40+ YC companies and growing.
What you will do
- AI agents that discover hyper-targeted leads by understanding ideal customer profiles, conference attendees, hiring signals, and more.