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MarcoantonioCaldeira/README.md

👋 Hi, I'm Marco Antonio

Full Stack Developer with experience in enterprise systems, working across backend and frontend.

I've been building and maintaining web systems since 2022 — from legacy Java EE systems to modern REST APIs and Vue.js frontends. Currently working as a Java Developer at Holos Consult, focused on system evolution, SQL optimization, and clean architecture.

My main stack includes Java, Spring Boot, Vue.js, PostgreSQL and SQL Server, with hands-on experience applying SOLID principles, Design Patterns and MVC in production environments. Always learning — currently diving deeper into AWS, Docker and Kotlin.

🚀 About me

  • 💻 Full Stack Developer — Java, Spring Boot, Angular, Vue.js
  • ⚡ Interested in software architecture, cloud computing and engineering best practices (SOLID, Clean Code, REST)
  • 🌍 Open to collaborating on open source projects and freelance opportunities

🛠️ Technologies & Tools

Backend

Java Spring Boot Spring Security Kotlin JUnit Mockito Jest

Frontend

Angular Vue.js NuxtJS

Databases

PostgreSQL MySQL SQL Server

DevOps & Cloud

Git Docker AWS EC2 AWS S3 Kafka

IDEs & Editors

IntelliJ IDEA Eclipse VS Code

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  1. Event-Driven-Payments Event-Driven-Payments Public

    Plataforma de pagamentos em microsserviços com Spring Boot, Kafka e PostgreSQL. Comunicação assíncrona por eventos, saga coreografada, outbox pattern e idempotência.

    Java