Treasury automation for startups: T-bill ladders, maker-checker transfer controls, and a to-the-cent ledger priced from live U.S. Treasury rates, with an interactive demo where every rate is real and every cent is accounted for.
NOW ARRIVING
Justin
Notarfrancesco
Senior Frontend Engineer
Interfaces that move millions of people through their day.
I've spent over five years at JPMorgan Chase building React apps for millions of people. At that scale, speed and reliability aren't features, they're the standard.
React
TypeScript
HTML/CSS
Performance
EXPRESS SERVICE
Featured Work
All stops →
Snake, but you're driving the NYC subway: swipe a 16-bit pixel-art train around a route map, couple on cars as you pick up passengers, and share your crash as a Wordle-style emoji card.
A cat nutrition search engine: type any food and get a straight yes-or-no answer with the reasoning, powered by OpenAI behind a serverless API.