E163: How Thiel Fellows Build Billion-Dollar Startups w/Zaid Rahman

Zaid Rahman is the founder and CEO of Flex, a breakout fintech startup that’s reinventing credit and payments for the middle market. Backed by the Thiel Fellowship and known for his “Delta 4” product philosophy, Zaid is building a multi-product platform that’s helping profitable, owner-operated businesses unlock capital and scale faster. In this conversation, Zaid breaks down how Flex is using AI to radically reduce underwriting time, why he’s obsessed with hiring 10x talent, and how “taste” and first principles thinking guide everything from product design to risk management. If you’re building in fintech, hiring in tech, or just obsessed with the craft of company-building, this episode is full of tactical insight.