João Barbosa

Wiring bits to bring people together.

são paulo → pittsburgh
joaobarbosa@cmu.edu

hereelsewhere

Things I've built with people.

vento

founding engineer · 2026—

An AI-native operating system for restaurants. I own architecture across the agentic stack while we scale from pilot to dozens of clients across North America and Asia.

xp

quantitative software engineer intern · jul–aug 2026

Real-time risk and position tracking for the credit trading desk, attributing hundreds of millions in annual P&L across asset classes.

jane street

FOCUS program · 2026.05

Invitation-only program for first-years: low-latency systems, OCaml, quantitative trading infrastructure.

ifood

software engineer intern → junior engineer · 2024–26

11 Kotlin and Go services on Kubernetes powering order integration: 600M+ requests a day at 99.9999% uptime for 400K+ restaurants.

Designed and launched the Order External Audit API over 50M daily log records, queried 6K+ times a month; cut integrator support requests by 18%.

rme

technical lead, rede mulher empreendedora · 2026—

Mentorship matching for 3M+ women entrepreneurs in Brazil: embedding retrieval and ranking, sub-second, at 100× lower cost than naive LLM calls.

research

Particles on Canvas (2024): particle collision data into digital art, 1st in Latin America in a CERN-sponsored competition.

Pandemica (2023–24): a 1M-agent epidemic simulation at 58.5% MAPE, outperforming two benchmark models. Honors thesis, 4th at Brazil’s largest STEM fair.

Treemux (2026.02): an idea-to-deployment agent swarm, built at Stanford TreeHacks.

school

Carnegie Mellon University, BS in computer science, class of 2029.

Technology fellow at Fundação Estudar; founding member and national multi-medalist, STEM olympiad club.

the full cv