About Me
About Me
Hey, I'm Jack, a builder pivoting from strategy consulting to applied AI startups. Manufactured in Taiwan, operating in SF.
Built a camera app to 500K downloads in college. Spent four years at McKinsey rebuilding performance engines and org structures for Fortune 500 financial turnarounds. Recently worked with YC founders on agentic sales platforms. Now at Berkeley B-school, exploring career options and tinkering with AI.
Career Journey
MBA - UC Berkeley Haas
Aug 2024 - May 2026
Exploring career options & tinkering with AI 👉
AI Product Manager - FuseAI (YC S24)
Apr 2025 - Jul 2025
Problem
Startup teams lack expertise and time to stitch together dozens of outreach tools
Solution
Unified platform for lead generation, data enrichment, outreach sequencing, and CRM
Scope
Created working prototype of demo call live-assistant to surface real-time talk tracks and prospect insights
Senior Digital Transformation Associate - McKinsey
Mar 2021 - Mar 2025
Industry
Consumer electronics manufacturing, high-performance computing, pharmaceutical
Engagement Model
P&L-based engagements, actively shaping client operations and co-owning financial outcomes
Geography
Greater China, Germany, North America
Co-founder / CEO - Frismo
Jan 2016 - Dec 2016
Problem
Solo travelers unable to capture quality portraits when asking strangers to take photos
Solution
Developed iOS app with ML-powered real-time composition guidance to coach photo-takers toward ideal framing
Result
Scaled to 500K downloads, #3 App Store ranking, viral media attention
B.S. Computer Science - Tsing Hua University
2015 - 2020
Tinkering with AI...
Tinkering with AI to solve personal problems... to solve personal problems
Tinkering with AI just for fun... just for fun
Writings
You make your own luck
December 2025
A kid walking into a chocolate factory
December 2025
Vibe coding as a hobby
December 2025
5 things I learned after 100 hours of vibe coding
December 2025
How I work
November 2025
The increasing importance of context switching
November 2025
Goals in life
May 2025
Leaving McKinsey
April 2025
Mental models
January 2025
Now is the time to master English
October 2024
How to find fulfillment
September 2024
Why write when you can just think?
May 2024
Learning Kardashev Scale, Fermi Paradox, and ASI
May 2024
Notes from reading Charlie's Almanack
February 2024
What's under the hood of LLMs?
January 2024
How I decided to get married at 26
December 2023
Wisdom vs. Intelligence
November 2023
People comes first
June 2022