👋 Hi, I'm Mateus!

I am a Backend Developer (Java 21, Spring Boot) and RESTful API Architect specializing in scalable and robust solutions, with expertise in complex statistical modeling and data analysis (Python/R, PostgreSQL). With 2,000+ hours of documented development experience, I build production-ready applications combining technical proficiency with over 10 years of methodological rigor, international project leadership (INRAE), and high-stakes team and budget management.

Currently focused on backend development with Spring Boot 3.5.3, creating scalable REST APIs with clean architecture, JPA/Hibernate, and microservices patterns. I also develop full-stack solutions combining React/Next.js frontends with Node.js/Spring Boot backends, all deployed to production environments.

Core Expertise: Spring Boot • Java • Python • R • React • TypeScript • PostgreSQL • Node.js • Docker • CI/CD

Let's connect! 🚀

• Advanced Spring Boot project with professional-grade architecture, demonstrating best practices in enterprise Java development. Latest updates Oct 2025.

• Modern Spring Boot ecosystem with Swagger documentation, Docker containerization, Kubernetes orchestration, JWT authentication, JUnit 5 testing, and ReactJS frontend integration.

• Production-ready REST API with Spring Boot 3.5.3 and Java 21. Features complete e-commerce domain model, JPA/Hibernate relationships, PostgreSQL integration, and live deployment on Render.

• Full-stack church management system with React, TypeScript, Node.js, and PostgreSQL. Implements event management, donation tracking, user authentication, and role-based access control.

• Document management system with React, TypeScript, Node.js, and Supabase. Features real-time updates with Socket.io, workflow tracking, metadata management, and professional logging.

• Multi-platform medical appointment system with React web app, React Native mobile app, and Node.js API. Deployed across Vercel and Render with SQLite database.

• TypeScript-based MCP (Model Context Protocol) server for NPM integration. Demonstrates expertise in protocol implementation and tooling development.

• Efficient YouTube video downloader utility built with Python and yt-dlp, featuring clean CLI interface and robust error handling.

• Comprehensive data science and machine learning projects including automated data analysis pipeline for environmental Big Data, facial recognition, transfer learning, and image recommendation systems. Built with Python/R, scikit-learn, OpenCV, and Jupyter notebooks, achieving 40% reduction in dataset processing time.

• Cross-platform desktop calculator with modern UI built using C++ and Qt framework. Demonstrates proficiency in desktop application development and object-oriented design patterns.

• Java • Spring Boot 3.5+ • Spring Data JPA • Maven
• Node.js • Express.js • JWT Authentication
• PostgreSQL • MySQL • SQLite

• React • TypeScript • Next.js • Tailwind CSS
• React Native • Expo

• Docker • GitHub Actions • Vercel • Render
• Git • Postman • VS Code

• Python • Pandas • NumPy • scikit-learn • Jupyter
• R • ggplot2 • Statistical Modeling

I Mostly Code in Java

Java                     12 repos            ██████░░░░░░░░░░░░░░░░░░░   25.00 % 
TypeScript               11 repos            ██████░░░░░░░░░░░░░░░░░░░   22.92 % 
JavaScript               6 repos             ███░░░░░░░░░░░░░░░░░░░░░░   12.50 % 
Python                   4 repos             ██░░░░░░░░░░░░░░░░░░░░░░░   08.33 % 
Astro                    1 repo              █░░░░░░░░░░░░░░░░░░░░░░░░   02.08 % 

Last Updated on 02/11/2025 01:42:07 UTC