Jonathan Freire
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Jonathan Freire

AI Software Engineer at Devsu

Passionate about AI, innovation, and building smarter software.

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About Me

Who I Am

Technology lover, naturally curious, and driven by innovation. I'm passionate about how Artificial Intelligence is reshaping the way we live and work, and I aim to apply this knowledge to my everyday projects. With experience across various development domains, I'm continuously evolving toward a role as a Software Architect and AI Specialist.

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Skills & Expertise

Frontend and Backend Development
Prompt Engineering
Machine Learning
Cloud Solutions
Relational, Non-relational, and Graph Databases
Containers
Microservices and Microfrontends

Featured Applications

Actual platforms and products I've built for free for the world.
Piano Skill Boost
Deployed Product

Piano Skill Boost

An interactive web application helping users learn and practice playing chords and notes on a piano. Built with NextJS and Supabase has been my main project for the last 6 months. Soon I will be adding cutting edge real-time audio processing and chord recognition directly in your browser.

NextJS
TypeScript
Supabase
Material UI
Visit App
Car Digital Center (Custom ROM)
Work In Progress

Car Digital Center (Custom ROM)

A custom Android ROM designed to transform an old phone into a highly efficient, low-resource digital center for cars. The system allows you to share WiFi to a parking camera, and includes a custom built GPS tracker to easily locate your vehicle in case of theft. It is currently a work in progress, and if you're a developer intrigued by AOSP and Android system dev, you're invited to join the project!

Android
AOSP
Java
Kotlin
GPS
In Development - Join Project

A few webs designed by me

Showcasing various website designs, layouts, and interactive platforms I've crafted over the years.

Ciencia Prisma

Ciencia Prisma

Web application designed for managing and publishing academic papers.

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Soluciones Academicas RV

Soluciones Academicas RV

[NO LONGER ONLINE] Web application developed to manage academic solutions and resources.

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Incocalza

Incocalza

System to handle my father's business. It consists of a system to manage the inventory of shoes with advanced AI features and a web page to show the shoes to the world.

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Other Projects & Open Source

A collection of minor tools, libraries, and experimental repositories.

Adaboosting Machine-Learning

One of my first ML implementations. Adaboosting raw implementation to improve the performance of weak classifiers.

PythonNumpyPandas

Rasa Training Base Template

A template to train Rasa NLU models with custom data. No LLMs, just a base to start building your own Rasa projects.

PythonRasaYAML

Rasa facilities

This project is about a bot that returns the location of facilities provided by the user

PythonRasaYAML

Last Articles

Insights, tutorials, and thoughts on software development and AI.