Cassi – A home-assistant prototype that helped raise a $3M seed

Cassi is an AI assistant for homeowners. The founder had an idea and no product yet, and needed something real enough to raise on.

I was the solo product designer and prototyper, working with the founder and one full-stack engineer. Before anything could be prototyped, the product had to be figured out: which problems Cassi solves, and how AI helps without becoming a chatbot bolted onto a dashboard.

The AI works throughout the app. It diagnoses a leaking dishwasher, suggests a fix and books a trusted contractor. A seasonal maintenance checklist turns up before the season does, and documents are filed and searchable. I owned the onboarding, the MVP maintenance flow, the microcopy and the Figma design system, and built prototypes in Figma Make.

The founder raised a $3M seed round with the MVP, and later a $10M round. I also designed the pitch deck that went with it.