John-Denis Greze joins Mang-Git Ng to dive into JDG's extensive career in tech, including his tenure as CTO at Plaid. JDG shares his decision-making process on build vs. buy, highlighting examples from his time at Plaid. He also discusses his current venture, Town AI, which aims to automate small business tax prep through AI. The conversation touches on the challenges and joys of being a founder, including management philosophies and leveraging modern AI tools.