Hi, I'm Helen
I'm a Product Manager at Coinbase, building and growing 0→1 products across consumer and B2B. I enjoy distilling complex problems into simple, delightful, and easy to use experiences.
NYU Finance & Data Science grad. NYC based 🗽 and Seoul 🇰🇷 native. Chronically documenting my life on Portra 400. Reach me at helenhnshim@gmail.com or find me on LinkedIn and X.
Writing
ChatGPT Plus: From upgrade to habit
What my first Codex session revealed about premium activation — and what I'd change about the subscriber journey
The flywheel Anthropic hasn't designed for
A teardown of Claude's enterprise adoption gap — why non-technical workers stall before their first win, and what I'd build to close it
Building faster than design cycles: 1-tap trade
Prototyped a 1-click trading experience to validate user behavior in days, replacing specs with working builds and reshaping how I build AI products
What I've Shipped
Decentralized Trading
Expanding tradable assets from hundreds to millions of tokens directly on Coinbase
International Exchange
Launched Coinbase International Exchange, Coinbase's first leveraged trading product
Mobile & Web Architecture
Coinbase app-wide redesign, making trading simpler and easier for millions of users