Hi, I'm Chung-Han
I turn complex data problems into products people actually use.
Hands-on problem solver.14 years shipping B2B data platforms & B2C smart home apps
Meet Cha Cha, my doggy assistant 🐾Ask me anything about Chung-Han's work.
Cha ChaChung-Han's doggy assistant 🐾
Cha Cha answers from notes Chung-Han wrote about his work. For anything important, talk to Chung-Han.
Selected work
How I ship: products told in five steps.
Vibe coding
How I build on the side: AI tools beyond the day job.
Introducing TFF Filler
Using Claude Code to solve a repetitive permit-paperwork problem. Start small, ship what works.
Read on →More on Substack
An ongoing log of building real tools with AI: the wins, the dead ends, the lessons.
Visit the Substack →How I lead
How I lead: three principles I come back to every time.
Continuous growth culture
Weekly knowledge-sharing and a monthly AI learning club turn individual curiosity into team capability.
Data-driven evaluation
Telemetry and research define the OKRs, so quality is measured against outcomes, not asserted.
Transparent leadership
Direct, data-backed communication and leading by show-and-tell, so cross-functional partners stay aligned.
