João Barbosa

Wiring bits to bring people together.

são paulo → pittsburgh
joaobarbosa@cmu.edu

hereelsewhere
growing
01
What I care most about is how people find each other: the right mentor, the right table, the right problem to spend a life on. Most of what I build is matching, in some disguise.
02
Founding engineer at Vento, an AI-native operating system for restaurants. I own architecture across the agentic stack while we scale from pilot to dozens of clients on two continents.
03
Computer science at Carnegie Mellon, class of 2029.
04
Technical lead at Rede Mulher Empreendedora, matching mentors to 3M+ women entrepreneurs in Brazil. Sub-second, at 100× less than naive LLM calls.
05
Come July: real-time risk for XP's credit trading desk, New York.
grown
01
Two years as a software engineer at iFood, Latin America's largest delivery platform: 11 services, 600M+ requests a day, 400 thousand restaurants that could not afford a minute of downtime. I built the audit API their partners now call 6,000 times a month.
02
Led five friends turning CERN collision data into neural art. First in Latin America, out of five hundred teams.
03
Pandemica: an agent-based simulation of a million people that out-forecast two benchmark models. My honors thesis, and the reason I trust simulations a little and respect epidemics a lot.
04
Jane Street's FOCUS program, may 2026. (Still thinking about OCaml.)
05
Technology fellow at Fundação Estudar; before that, founded a STEM olympiad club and collected national medals with it.
kept
01
Thoughts I've tended long enough to show:
02
Art grown from particle physics:
neural art grown from kaon, electron, pionneural art grown from kaon, electron, pionneural art grown from proton, kaon, pion

latest seed 6dba3e42 · cmyk

grow your own on this site
03
Lists of books, beliefs, advice, places, and the times I've felt unnaturally lucky. Public storage; take anything.
04
This site is my Pasárgada. Perder-se também é caminho.