John Wang

I love building things, particularly software, companies, and wooden objects.

Now

Figuring out what’s next
Writing about AI, engineering, and startups.

Previously

Co-founder/CTO at Assembled
143.dev: open-source coding-agent infrastructure for teams. Here’s why we built it.
Co-founder and Chief Engineer at Zinc (YC W14)
Early engineer at Stripe, employee ~100
Contributor to Ruby on Rails, mostly ActiveRecord
CS at MIT. My interesting projects are on the work page.