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Rafael Junior

@rafaeljunior

Message

Java backend developer focused on secure REST APIs, modeling, and scalable architecture.

Colombia

Message

What I'm looking for

I’m looking for a junior Java/backend opportunity where I can build secure, maintainable, and scalable solutions. I value clean code, testing, documentation, and continuous learning, and I’m open to on-site, hybrid, or remote roles.

I’m a Software Engineering student focused on Java backend development, designing secure REST APIs, and building maintainable layered architectures. I use Java 17 with Spring Boot to deliver practical, documented backend solutions.

In my projects, I’ve implemented authentication/authorization with OAuth2Resource Server, JWT, and Keycloak, with role-based access control (USER/ADMIN). I designed clean Controller → Service → Repository → Entity separation, modeled data with JPA/Hibernate and PostgreSQL, and used MapStruct to keep DTO mapping simple and consistent.

I also build with quality and scalability in mind: Swagger/OpenAPI documentation, CORS configuration for frontend integration, and centralized exception handling. My experience includes agile practices (Scrum/Kanban), Git/Maven workflows, and testing with JUnit and Mockito—so each layer stays verifiable and easy to extend.

Experience

Work history, roles, and key accomplishments

Current

Student Developer

Current

Universidad Iberoamericana de Colombia

Jan 2024 - Present (2 years 5 months)

Built academic backend projects in Java using object-oriented design, modular structure, and technical documentation. Applied Spring Boot, JPA/Hibernate, PostgreSQL, and Docker while working with Git/GitHub and Maven in an agile workflow.