Erofei S.
Software engineer building deliberate products on the web.
I design and ship full-stack products with React, TypeScript, Node.js, Cloudflare, and a strong bias toward clarity, speed, and clean interfaces. I am also a long-time crypto enthusiast, which keeps pulling me toward wallets, on-chain tooling, and privacy-oriented products.
Selected work
Projects with a product mindset
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cryptowallet-cli
Offline wallet generation with custom prefixes across multiple chains.
secred.link
Encrypted secret sharing with browser-side protection and minimal ceremony.
timed.cc
Short-lived transfer codes for moving content quickly between devices.
nottie.org
A private browser note layer that stays attached to the page you are on.
Writing