HafizaAkademi (formerly DopingHafiza) is a backend-focused full stack education platform developed for YKS (Yükseköğretim Kurumları Sınavı) students in Turkey.
The project is designed to manage academic content, users, and learning workflows in a scalable and maintainable architecture. It provides a complete learning management system (LMS) for students preparing for university entrance exams.
The main goal of this project was to build a real-world education platform with strong backend foundations rather than a simple CRUD application, demonstrating enterprise-level backend development skills.
Key Features
- User authentication and role-based access control (students, teachers, admins)
- Structured academic content management (courses, topics, lessons, materials)
- Course enrollment and progress tracking
- Student dashboard with learning analytics
- Content organization by subjects and topics
- Backend-driven business logic and data management
- RESTful API architecture for frontend integration
- Clean separation of frontend and backend responsibilities
- User profile management
- Learning progress tracking
- Material download and access control
- Scalable architecture for handling multiple users
What I Worked On
- Designed the complete backend architecture and database schema
- Implemented RESTful APIs and core business logic
- Created user authentication and authorization system
- Built course and content management system
- Developed student enrollment and progress tracking features
- Implemented role-based access control (RBAC)
- Designed database relationships and entity models
- Created API endpoints for frontend consumption
- Integrated frontend (React) with backend services
- Implemented data validation and error handling
- Built scalable backend services
- Focused on code quality, scalability, clean code, and maintainability
- Applied software engineering best practices
- Worked with real application-level requirements instead of tutorials
- Implemented database migrations and schema versioning
Technologies Used
Backend
- Java
- Spring Boot
- Spring Data JPA
- Spring Security
- Spring Web (REST APIs)
- PostgreSQL (relational database)
Frontend
- React
- JavaScript (ES6+)
- HTML5 / CSS3
- Modern React patterns (Hooks, Context)
Database & ORM
- PostgreSQL
- JPA / Hibernate
- Database migrations
- Entity relationships
Security
- Spring Security
- JWT or Session-based authentication
- Role-based access control
- Password encryption
API Architecture
- RESTful API design
- JSON data format
- HTTP methods (GET, POST, PUT, DELETE)
- API versioning
Tools
- Git (version control)
- Docker (local development and containerization)
- Maven (dependency management)
- IDE (IntelliJ IDEA / Eclipse)
- Postman (API testing)