João GabrielSoftware engineer
Backend engineering & applied AI

Building since 2020

Complex systems.
Clear purpose.

I’m João Gabriel, a software engineer turning complex problems into reliable backends, evidence-backed AI, and useful products.

Selected work
  1. InputPublic portals
  2. SystemVersioned notices
  3. OutputOffline app

Follow the project’s data flow.

Based in BrazilWorking across the stack
Data into dependable systems.Observador de Concursos

In my day-to-day work

Grupo Actcon

Full-stack developer

June 2025 → present

I develop PHP and custom WordPress plugins, and integrate AI into the company’s everyday workflows.

Experience & education

Selected projects04

Ideas, made real.

A selection of independent projects.
From the first data point to the final interface.

All repositories

I care about
the whole problem.

Good software holds together. The data model, the background job, the answer an AI gives, and the screen someone uses.

I started in backend development in 2020, working with PHP, Laravel, Java, and relational databases. Today I’m a full-stack developer at Grupo Actcon and studying Generative AI and Large Language Models at PUC-Rio. I bring that engineering foundation to AI systems and connected products.

Education & background

Reliable foundations

APIs, relational data, background workers, integrations

Python / FastAPI / PHP / Laravel / PostgreSQL

AI with evidence

Retrieval, source provenance, evaluation, human review

RAG / pgvector / Gemini / OpenAI

Connected products

Web interfaces, offline sync, local-first mobile

TypeScript / React / React Native / Kotlin

Better, together.

Small fixes. Shared impact. Contributions across Java, PHP, and Python.

All contributions