Backend-heavy full-stack engineer. Brazil, UTC−3. In production since 2022.
I design schemas that make the wrong state impossible, then build the apps on top of them — Postgres, NestJS, React and Java. CRM, commerce, public health, and products of my own.
→ thenatas.github.io — selected work, technical notes, and four playable prototypes.
| forty-monolito | Offline-first training platform. Two levels of Postgres row-level security, asserted against a real database with Testcontainers. |
| resumo-dos-candidatos | Election transparency on official TSE data. The uncertainty about who is who is modelled in the schema rather than guessed. |
| signal-and-shadow · 3D | Stealth AI prototypes. Guards that genuinely do not know where you are. Zero dependencies. |
| borrowed-eyes · bystander | Two more vertical slices, each built to answer one design question. |
| detetive-sonora | Ear-training game in Godot. Published on itch.io and GameJolt. |
Full-stack engineer at Celk, working in a Java EE codebase that has been running in Brazilian city health departments since 2012.
Open to remote roles — UTC−3 overlaps European afternoons and the whole US Eastern working day.



