👋 Brayan Barco

Backend Java Spring Developer | Cloud Architect | Microservices Specialist

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🚀 About Me

Backend Java Spring Developer with 3+ years of experience building scalable microservices architectures using Spring Boot, AWS Cloud, and Hexagonal Architecture. Specialized in high-performance concurrent systems, reactive programming, and cloud-native solutions.

Current Focus:
  - 🔧 Microservices with Spring Boot & Hexagonal Architecture
  - ☁️ Cloud Solutions: AWS (S3, Cognito, SES, Lambda, EC2, etc)
  - 🏗️ Clean Architecture & SOLID Principles
  - 🔒 Security: JWT, OAuth2, Spring Security
  - 📊 Databases: PostgreSQL, MySQL, Oracle
  - 🐳 DevOps: Docker, CI/CD

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💼 Professional Experience

🏢 Backend Team Lead Nelumbo Consultores • May 2025 - Present ⚡ Implemented Hexagonal Architecture with AWS services 🔐 Built JWT authentication with Spring Security OAuth2 📈 Improved API performance by 45% with optimized queries 🐰 Developed RabbitMQ queue system for email processing ✅ Achieved 80% test coverage with JUnit & Mockito

💻 Backend Java Developer Bomberos Villa del Rosario • Feb 2025 - Jun 2025 🔌 Developed biometric microservice with Socket TCP/IP 📍 Integrated Google Maps API (50+ data points) 🗄️ Migrated from H2 to MySQL for production 🐳 Deployed with Docker on Fedora 🎯 Optimized access control by 99%

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🛠️ Tech Stack

Backend Development

Cloud & DevOps

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🏆 Certifications

Certification	Issuer	Year	Link
🎓 Software Design and Architecture	University of Alberta	2025	View
⚡ Parallel, Concurrent Programming in Java	Rice University	2025	View
☁️ AWS Cloud Architecting	Amazon Web Services	2024	View
🚀 AWS Cloud Developing	Amazon Web Services	2024	View
🔴 Oracle Cloud Infrastructure I & II	Oracle	2024	View
🛡️ Google Cybersecurity	Google	2023	View
🗄️ Oracle Database Foundations & Programming	Oracle	2023	View

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🚀 Featured Projects

🏢 Enterprise Product Management Hexagonal Architecture • AWS Cloud Complete enterprise system with AWS services integration: ☁️ AWS S3, Cognito, SES integration 🔐 Spring Security OAuth2 📊 OpenAPI documentation ✅ 80% test coverage View Repo →	🚗 Parking System Multi-tenant Architecture Advanced parking management with: 🔑 JWT multi-device authentication 👥 Role-based access control 🐰 RabbitMQ email service 📈 Analytics & reporting View Repo →
🦁 Zoo Management API RESTful Enterprise System Complete zoo management with: 🔒 JWT authentication 📖 Swagger documentation 🧪 SonarLint quality checks 🏛️ Clean Architecture View Repo →	📦 Order Management NestJS Microservices Modern order system with: 💳 MercadoPago integration 🔄 Prisma ORM 🐳 Docker deployment 📝 Audit trail View Repo →
🔐 Biometric Inspection System Hybrid Microservices Security system with: 🔌 Socket TCP/IP communication 📍 Google Maps API integration 🐳 Docker on Fedora 🎯 99% accuracy improvement View Repo → • Demo →	🌐 ShipConnect Social Network Application Full-stack social platform: 💬 Real-time messaging (Socket.io) 🔐 2FA authentication ☁️ AWS EC2 deployment 📸 Cloudinary integration View Repo → • Demo →

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📊 GitHub Statistics

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💡 "Building scalable systems, one microservice at a time"

Ad Maiorem Dei Gloriam ✞

Made with ❤️ by Brayan Barco