AI Voice companion for individuals with ADHD — designed and built the full product from scratch.
* Designed and implemented the entire front-end in TypeScript / React, including 3D interactive scenes (Spline), dynamic UI components (shadcn, Tailwind), and responsive layouts — shipping code that matched the design vision with production-level polish.
* Architected the full-stack AI agent system single-handedly: React/TypeScript front-end, Supabase back-end (database, auth, real-time), and voice LLM-powered conversational AI pipeline — improving user focus recovery time by 75%.
* Architected end-to-end user flows from concept through interactive prototypes in Figma, then translated them directly into production code, eliminating design-to-dev handoff delays.
* Acquired paying users within the first week of launch, achieving an 85% weekly renewal rate — validating strong product-market fit and user retention.
* Confirmed commercial viability through seed user interviews (25% potential conversion rate) and organically grew a waitlist of 210+ users pre-launch.
* Directed the marketing lead on user testing and Wizard-of-Oz experiments to validate AI interactions before engineering investment. Authored SOPs for both engineering and marketing teams and defined success metrics to align cross-functional execution.
* Pitched at Berkeley SkyDeck and MiraclePlus (YC China); passed investor interviews.