👋 Hi, I’m José David Colmán

🚀 Senior Java Developer | Backend Specialist | API & Cloud Enthusiast

I design and build scalable microservices and distributed systems with a focus on clean architecture, high performance, and reliability.
Currently exploring API middleware solutions, push notification services, and distributed transaction management.

🛠️ Technical Expertise

Backend Development

Databases

Cloud & DevOps

🚀 Featured Projects

• 📡 Crypto API Middleware
  A robust, production-ready backend service built with Spring Boot that provides a unified API for cryptocurrency data. This middleware service acts as a proxy between clients and external cryptocurrency APIs, offering enhanced reliability, caching, and additional features.

• 📊 Crypto Price Dashboard
  Real-time cryptocurrency tracker using WebSockets and REST APIs (Java + React).

• 📱 Push Notification Service
  Unified SMS & push notification service integrating Firebase, Infobip & custom SMPP providers.

📈 GitHub Stats

📬 Let's Connect

I'm always open to discussing new opportunities, interesting projects, or potential collaborations. Feel free to reach out!