At X-TECH, I design RESTful APIs with Spring Boot and Spring Data JPA, and implement role-based authorization and file storage.
I also apply Spring Cloud patterns, including Eureka service discovery, centralized configuration, and OpenFeign communication. I built event-driven integration prototypes with Apache Kafka producers and consumers.
To support reliable services, I write unit and integration tests using JUnit and Mockito, and use Postman and Swagger for API validation and documentation.
For my GraduationProject(onlineschool), I designed and implemented a Spring API with user CRUD operations and role-based access control. I also developed a chat project with JWT authentication, input validation, direct and group chat, and frontend pages.

