Enterprise Support & Incident Management API
A hands-on enterprise backend engineering project demonstrating capability within the modern Java/Spring Boot ecosystem, adhering strictly to clean layered architectural patterns and enterprise data modeling best practices.
System Architecture
- Layered Clean Architecture: Built using a strict Controller → Service → Repository separation of concerns to guarantee maintainability, high testability, and isolated business logic.
- Enterprise Security with JWT: Configured Spring Security 6 with stateless JSON Web Token (JWT) filters and granular role-based authorization for multi-tier workflows (Client, Support Agent, and Administrator).
- ORM & Data Persistence: Designed with Spring Data JPA and PostgreSQL, modeling normalized entity relationships (One-to-Many, Many-to-Many), audit timestamping, transactions (
@Transactional), and optimized indexation. - Query Optimization & Pagination: Implemented server-side pagination, dynamic Specification-based query filtering, and defensive projection to avoid N+1 query overhead.
Engineering Standards
- Strict DTO (Data Transfer Object) separation preventing entity leakage.
- Global exception handling using
@ControllerAdvicefor consistent error schemas and audit trails. - Comprehensive REST contract documentation and API validation rules.