Partnering closely with the founders of an early-stage startup to enhance the user experience and interface of an innovative app designed for Gen Z investors. My role was to develop a comprehensive design system and refine the UX/UI, which had been primarily founder-led up until that point. The app delivers investment insights through TikTok-style short videos, appealing directly to the preferences of a younger audience. I ensured that the platform was both engaging and intuitive, facilitating a seamless user journey that aligns with the quick consumption habits of Gen Z.