Amir Katuwal

I’m a Java-focused Software Engineer who builds secure, scalable backend applications using clean architecture and maintainable design. I specialize in Java backend development with Spring Boot and Spring Security, with a strong emphasis on authentication, authorization, and reliable API behavior.

In my work, I implement JWT authentication and role-based authorization (RBAC), and I use Hibernate/JPA for robust persistence. I design RESTful APIs with DTO-based architecture, centralized exception handling, and input validation to improve API reliability and maintainability.

I’ve delivered end-to-end backend solutions in projects like a Hotel Reservation System—covering booking workflows, overlap prevention, booking reference generation, and secure user/room/inventory interactions. I also integrated third-party services for image management (Cloudinary) and email notifications (Mailjet), while generating API documentation with Swagger/OpenAPI.

I’m comfortable with modern delivery practices across AWS and containerized environments, including Docker, CI/CD pipelines, and automated testing with JUnit/Mockito/Testcontainers. I’m open to international opportunities, where I can collaborate, keep learning, and contribute to impactful engineering teams.