Hi, I’m Otavio, a Brazilian developer 🇧🇷 passionate about building robust and scalable backend systems.

• 🚀 Experienced with Java + Spring Boot for enterprise-grade RESTful APIs
• 🔒 Skilled in OAuth2 authentication, Spring Security & session management
• 🛠️ Strong background with databases, cloud hosting, and containerization
• 🎯 Goal: Become a backend specialist while exploring mobile development
• 📚 Studying Computer Engineering at UNIVESP
• 🤝 Open to collaborating on distributed systems, API design, and microservices

Java · Spring Boot · Spring Security · Spring Data JPA · Spring AI · Gradle · Apache Tomcat

PostgreSQL · MongoDB · MySQL · Redis · Flyway

Docker · Docker Compose · AWS (EC2) · Nginx · Git · CI/CD pipelines

Android · Kotlin · Firebase

Angular · HTML · CSS · JavaScript · TypeScript

GraphQL · Flutter · Kubernetes · Jenkins

AiFoodApp → A complete food management & AI recipe system built with Spring Boot.

🔑 Key Features:

• Google OAuth2 authentication with Spring Security
• Persistent sessions with Spring Session JDBC
• Food CRUD with nutritional data
• AI-powered recipe generation & nutrition analysis (Spring AI + Maritaca API)
• PostgreSQL + Flyway for database migrations
• Docker Compose + Nginx + AWS EC2 deployment

🌍 Live Demo: aifoodapp.site

👉 Explore the code

Let’s Connect & Build Amazing Things Together! 🚀