04/30/2026 updated
100 % available
Java Devloper/spring boot/sping security/backend/api/Junit/JPA hirbenate/git/github/postgresSQL
Palmares, Brazil
Worldwide
Java (Programming Language)JavaScriptSpring SecurityApplication Programming Interfaces (APIs)HTML5Cascading Style Sheets (CSS)GitHubPostgreSQLBackendGit
I am a backend developer focused on the Java ecosystem, using Spring Boot to build secure, well-structured, and scalable REST APIs.
I have experience with Spring Security, implementing end-to-end JWT authentication, including access control and route protection.
I develop complete applications with full CRUD operations, applying validation, error handling, and best practices to ensure clean and reliable code.
I work with PostgreSQL for database modeling and backend integration, and I use Git and GitHub for version control and project organization.
I also implement automated tests using JUnit, focusing on validating real business rules rather than just basic test cases.
My projects follow a layered architecture (controllers, services, repositories), with proper use of DTOs and clear separation of concerns.
I am continuously improving my skills, especially in security, system architecture, and professional backend development.
Languages
EnglishBasic knowledgePortugueseNative speaker
Project history
Designed and developed RESTful APIs using Spring Boot
Implemented authentication and authorization using Spring Security with JWT
Built full CRUD operations with proper validation and error handling
Designed and integrated relational database using PostgreSQL
Applied layered architecture (Controller, Service, Repository) to ensure clean and maintainable code
Created and used DTOs for data transfer and separation of concerns
Implemented automated tests using JUnit focusing on business logic
Managed version control and project organization using Git and GitHub
Ensured code quality following best practices in backend development