I'm Valdo, a 20-year-old Fullstack Developer in training based in Spain 🇪🇸
Currently finishing my last year of Multiplatform Application Development (DAM) while working on real projects and constantly expanding my skills.

public class AboutMe {

    private final String firstName = "Valdo";
    private final String surnames = "Durán Petronyte";
    private int age = 20;
    private String location = "Spain";

+   private String passion = "Building real-world apps with clean code and great UI/UX";

+   private boolean openToWork = true;
    private String contactEmail = "petronyte.dev@gmail.com";

    private String role = "Junior Fullstack Developer";
    private String[] openTo = {"Frontend", "Backend", "Fullstack"};

    private String[] languagesAndTools = {
        "Java", "Spring Boot", "Flutter", "Node.js", "MySQL", "MongoDB"
    };
}

• 💻 Strong experience in Java and Spring Boot for backend development.
• 🎨 Passionate about frontend development with Flutter, building responsive UIs for mobile and web.
• 🔁 Experience with Node.js, MongoDB, and MySQL in fullstack projects.
• 🧠 Self-taught in several technologies via Udemy (certified).
• 🌍 Completed a 3-month internship in Germany, using English daily and learning basic German.
• 🤝 Collaborated on a TFG fullstack app with Flutter + Node.js + MongoDB.
• 🕹️ Built a mobile rhythm game inspired by Piano Tiles using Java/Kotlin for Android.
• ☕ Fan of clean code, project structure, and continuous improvement.

Languages & Frameworks
Java · Spring Boot · Node.js · Flutter · Kotlin · JavaFX

Databases
MySQL · MongoDB

Tools & Platforms
Git · GitHub · IntelliJ IDEA · VS Code · Udemy

Other
REST APIs · Responsive Design · MVC · Agile basics · Clean Code

• Advanced Java practices (clean architecture, testing, etc.)
• Backend development with Node.js + MongoDB
• Fullstack apps using Flutter Web + REST APIs
• UI/UX best practices for modern frontend design

• ⏯️🔏⌛ TFG – Responsive fullstack app (Flutter + Node.js + MongoDB)
• 🎮 Piano Tiles–like mobile game (Java/Kotlin)
• 🖥️ Desktop Restaurant app with JavaFX and MySQL
• 🧠 More projects being uploaded...

• 🇪🇸 Spanish (native)
• 🇬🇧 English (B2 – certified)
• 🇩🇪 German (basic conversational)

• 📧 Contáctame por correo
  

• 💼 Visita mi LinkedIn 🌐
  

✨ I'm open to internships, junior positions and collaborations.
Let's build awesome things together!
Feel free to explore my repos, leave feedback or just say hi 🤝