Raphael Costa speaking on stage

Raphael Costa

Product / AI Engineer

I build AI-native products and the software platforms behind them.

Currently building fatu, an AI platform for hospital billing. Over 18 years, I’ve worked as a founding engineer, product leader, and founder across workflow software, developer platforms, and AI agents.

Brazilian · SF Bay Area · U.S. O-1 extraordinary ability visa

Experience

fatu

fatu

Founder

Building an AI platform for hospitals billing Brazil’s public health system (SUS). Agents review clinical documents, prepare and submit claims, track audit responses, and handle corrections, with hospital teams reviewing and approving the work.

Crosscheck

Crosscheck

Founding Engineer

Built supply-chain compliance workflows, internal GTM AI agents, GTM intelligence, and CRM tooling; worked with some of the world’s largest certification bodies and supply-chain traders to shape product and agent behavior from field feedback.

Gumroad

Gumroad Helper

Senior Software Engineer

Worked on Gumroad’s open-source Ruby on Rails product and led Helper, an AI-agent support product handling more than 28,000 conversations each month.

Pipefy

Pipefy Pipefy AI

Founding Engineer → Principal Engineer / Technical PM

Built the Rails core product, public GraphQL API, Apps platform, and Pipefy AI; worked with enterprise customers including Accenture, Capgemini, Santander, and Itaú to turn implementation feedback into roadmap.

ateliware, Sage, HSBC

Full-stack Engineer

Built Ruby on Rails products at ateliware and Sage, alongside APIs, ecommerce systems, and enterprise software across startup, agency, and banking teams.

Founder programs

Education