Full-Stack Developer
Jacareí, Brazil · Remote
Over 2 years shipping features to production on B2B/B2C SaaS platforms, with React, Node.js, NestJS, PostgreSQL and automated testing.
Carlos Morais · Full-Stack · 23 years old
2+
years shipping to production
~100
active accounts on the platform I currently work on
3–8h
saved per psychologist weekly with AI
Selected work
Company code is private, so here I walk through the problem, the decisions and the outcome of each one.
Plumaa 2026 — present
A backend built from scratch: five access profiles, Stripe payments, Google Calendar scheduling, NR-1 for companies and an AI session summary that saves psychologists 3 to 8 hours a week.
Alpha EdTech · Project lead Nov 2024
Up to 10 racers on a top-down Canvas track, with the server as the source of truth and client-side prediction, synced over WebSocket, no Socket.IO.
Conversational AI startup 2025 — 2026
AI customer service on WhatsApp for other companies: ~100 interactions a day, tools wired to 10+ external APIs and a bulk campaign system I built from scratch.
Bayer 2024 — 2025
3 apps built solo: validated lab data collection, order tracking and a Gantt dashboard, with the daily update dropping from ~1 hour to a few minutes.
I'm based in Jacareí, Brazil, and work remotely. I started with online courses at Alura in 2022, completed about 3,000 hours of full-stack training at Alpha EdTech, and have worked in the field since 2024 — Bayer, a conversational AI startup and, today, Plumaa. I'm also currently studying Database Administration at IFRS.
Unit and integration tests before every deploy. This site goes further: CI runs everything on every push.
I review code and support architecture decisions as the technical reference for a small squad.
I use Claude Code daily, with custom skills and agents for code research and test writing.
Want to talk about a project or swap ideas about code? Email or WhatsApp is the fastest way to reach me.
Jacareí, Brazil · Remote