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Barcodehub/README.md

👋 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

💼 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%

🛠️ Tech Stack

Backend Development

Java Spring Boot Node.js NestJS TypeScript Python

Cloud & DevOps

AWS Docker Oracle Cloud

🏆 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

🚀 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 →

📊 GitHub Statistics

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

Profile Views

Ad Maiorem Dei Gloriam ✞

Made with ❤️ by Brayan Barco

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  1. CoffeeFlask CoffeeFlask Public

    SystemCoffee is a web application for managing cafés, featuring sales, reservations, menus, table billing, and an admin panel for users with roles like admin, waiter, and customer.

    Python 5

  2. entorno-programming-ia-node entorno-programming-ia-node Public

    Web application that uses the Judge0 API to execute code in multiple programming languages (JavaScript, Python, Java, C++). It processes source code submissions, retrieves execution results, and in…

    JavaScript 2

  3. ShipConnect ShipConnect Public

    A social network with secure authentication, content sharing, community management, real-time messaging, and privacy controls. Built with Node.js and MongoDB.

    JavaScript 1 1

  4. advanced-authservice-crud-microservices advanced-authservice-crud-microservices Public

    Microservices-based API provides user advanced authentication and basic product management functionality.

    JavaScript 1

  5. hexagonal-archi hexagonal-archi Public

    arquitectura hexagonal template one (crud de productos spring+postgre)

    Java

  6. parking-system-spring parking-system-spring Public

    prueba tecnica parking system con spring boot

    Java