● Architected and developed a modular RESTful API with Spring Boot to manage appointments, patients, and electronic health records, meeting 100% of the client's requirements. ● Implemented JWT (JSON Web Tokens)-based authentication and authorization with Spring Security, ensuring secure access for different user roles (doctors, administrators). ● Optimized PostgreSQL database queries using JPQL and indexes, resulting in a 40% reduction in response time for the application's main routes.

● Developed a microservices architecture for an e-commerce platform with dedicated services for Orders, Payments, and Product Catalog using Spring Boot and Spring Cloud. ● Implemented an API Gateway with Spring Cloud Gateway to centralize and secure access to the microservices. ● Containerized the entire application with Docker and orchestrated the services using Docker Compose, simulating a production environment and streamlining deployment.