00Brotherson Américo
Full Stack Developer
I build complete web applications, with attention to user experience and the engineering behind them.
01Interface
React · Next.js
02Server
Node.js · APIs
03Data
PostgreSQL
01
Published applications and websites, with links to the live version and to the code.
01Product · Full Stack · 2026
Warehouse inventory management where every movement is recorded and no balance is edited by hand. Permissions are enforced by the database itself.
Next.js · TypeScript · Supabase · PostgreSQL · Playwright
Read-only demo with fictional data.
Real captures of the public demo
02Full Stack project · independent evolution · 2026
A running tracker with authentication, workout logging, goals and progress indicators. Started during the DecodeLabs internship and rebuilt as an independent Full Stack project.
React · TypeScript · Node.js · Express · PostgreSQL
No-signup demo · automated tests
HTML · CSS · JavaScript
03Client · Solar energy
A landing page for a solar energy company, live on the client's domain.
04Client · Sports agency
An institutional website for a football career agency, live on the client's domain.
02
Three layers, one rule: every decision in the right place.
01Interface
It shows what each person can do; the rules live behind it.
02Server
Every request is checked on the server before it touches the data.
03Data
What cannot fail lives in constraints and permissions, not in conventions.
03
Before writing a line, I want to understand the process, who uses it and what happens when it fails.
I went from training projects to client websites and a Full Stack internship at DecodeLabs. Today I build complete applications, like Tralyn, and I am looking for a team to keep growing with.
04