GustavoAlmeida
I build software that solves real problems. I started at 13 out of curiosity; today I work remotely as a full-stack developer and I run several SaaS with various paying clients and daily active users.
What drives me isn't the stack. It's the problem. I like to understand the problem very well — and the solutions — before opening the editor.
A guy who builds.
Obsessed with the problem
Understanding the problem well is half the journey.
I started before AI
I learned alone, out of curiosity. Today I learn what the project needs, at the speed it needs.
Everything about me, on a single page.
PDF · opens in a new tab, downloadable
Selected work
Bibliotech
Platform for school library management focused on students. Book via phone, pick up at the library, reading metrics. In daily use at three schools.
Quadra Livre
Community tennis court bookings with 100+ active users. Google auth, server-side conflict checks, social profiles with stats, player challenges, and native Expo app.
Website Monitor
Real-time uptime monitoring for sites and APIs. Second-level checks, email alerts, 24h/7d/30d dashboards, JWT auth with per-user isolation.
Alma Campeira (ERP)
Custom ERP for a handmade knifery: materials, knives, suppliers, customers, sales, metrics, and automated purchase orders. RBAC and auth via Supabase SSR.
WhatsApp CRM
Multi-agent support on a single corporate number. Distribution by team (support, finance), full history per customer.
What I master
Languages
- →TypeScript
- →JavaScript
- →Python
- →Go
- →PHP
Frontend
- →React
- →Next.js (App Router · RSC)
- →Tailwind
- →Vite
- →PWA
Backend & DB
- →Firebase
- →Supabase
- →PostgreSQL
- →MongoDB
- →Redis
- →WebSocket
Infra & DevOps
- →Linux
- →Docker Compose
- →Vercel
- →Cloudflare Pages
Payments & APIs
- →Stripe (checkout, webhooks, subs)
- →REST
- →WordPress
AI
- →Claude Code
- →Cursor
- →Prompt engineering
- →Local running
Obsessed with the problem
In everything I do, I always look for a way to solve a problem or make something easier. My biggest SaaS was born when I saw that the school librarian was keeping records on paper. Today, Bibliotech is the only system for school libraries where every student can see all the books in their school library in the palm of their hand, and reserve them from there. I have several more projects I built the same way on my GitHub!