I'm a Systems Engineering student from Colombia focused on building backend applications and services with Java and Spring Boot.

I enjoy designing REST APIs, authentication and authorization systems, database-driven applications, and containerized services, with a growing focus on software architecture, system design, testing, cloud computing, and distributed systems.

My goal is to build software that is reliable, maintainable, secure, and easy to deploy.

I'm currently looking for Backend Developer Internships and Junior Software Development opportunities in Colombia, including remote, hybrid, and on-site positions.

• Systems Engineering student at Universidad Cooperativa de Colombia
• Focused on Backend Development
• Main programming language: Java
• Currently strengthening Spring Boot, Software Architecture, Testing, System Design, and Cloud Computing
• Interested in Security, Authentication, Authorization, and API Design
• Interested in Distributed Systems and Real-Time Applications
• Experience building and running applications with Docker and Docker Compose
• Experience deploying applications using AWS EC2
• Experience working with PostgreSQL, MySQL, and Oracle
• Familiar with CI/CD, GitHub Actions, REST APIs, WebSockets, and MQTT
• Continuously preparing for technical interviews and software engineering roles
• Based in Colombia

Java · Spring Boot · Spring Security · Spring Data JPA · Hibernate · Maven

REST APIs · JWT · Authentication · Authorization · WebSockets · Swagger/OpenAPI

PostgreSQL · MySQL · Oracle · SQL · JPA/Hibernate · Relational Database Design

React · JavaScript · HTML5 · CSS3 · Tailwind CSS

Docker · Docker Compose · AWS EC2 · Nginx · Git · GitHub Actions · Linux · CI/CD

MQTT · WebSockets · IoT · Distributed Systems · Real-Time Communication

Postman · Swagger/OpenAPI · Git · GitHub · Maven · Docker

Parking management platform focused on reservations, authentication, payments, and backend API integration.

The project includes a Spring Boot backend with security, persistence, REST API architecture, and containerized deployment.

Technologies: Java · Spring Boot · Spring Security · JWT · JPA · PostgreSQL · Docker · Docker Compose · React · REST API · Swagger/OpenAPI

Backend Repository

Frontend Repository

Full-stack clinical appointment management application.

The application integrates a React frontend with a Spring Boot REST API and Oracle database, including authentication, authorization, roles, permissions, and refresh-token based security.

Technologies: Java · Spring Boot · Spring Security · JWT · JPA · Oracle · React · Docker · REST API · Swagger/OpenAPI

Repository

Distributed IoT project focused on communication between sensor components and backend services.

The project explores messaging and communication patterns using MQTT, providing practical experience with distributed systems and IoT architectures.

Technologies: Java · MQTT · IoT · Distributed Systems

Repository

Real-time communication project built with Java and Spring Boot.

Focused on understanding WebSocket-based communication and real-time interaction between backend services and clients.

Technologies: Java · Spring Boot · WebSockets

Repository

Repository dedicated to preparing for software engineering technical interviews.

Topics include:

• Data Structures and Algorithms
• Java
• SQL
• Spring Boot
• Software Design
• System Design
• Technical Interview Exercises

Repository

• Advanced Spring Boot
• Spring Security
• REST API Design
• Database Design
• Automated Testing

• Software Architecture
• Design Patterns
• Clean Code
• SOLID Principles
• System Design
• Data Structures and Algorithms

• Docker and Containerization
• CI/CD
• AWS
• Linux
• Cloud Architecture

Email: breynersartinezmunoz@gmail.com

I'm interested in:

Backend Developer · Java Developer · Spring Boot Developer · Junior Software Developer · Backend Internship · Software Engineering Internship

Colombia · Remote · Hybrid · On-site