Hospital Management System CodeIgniter Enhancements

I need a seasoned CodeIgniter developer to enhance my Hospital Management System by developing new modules and fixing existing bugs.

Key Requirements:
- Create a robust User Management Module that includes:
- Role-based access control to ensure security and proper access levels
- User authentication and registration for new staff and patients
- Profile management to maintain and update user information

- Develop a comprehensive Payment Processing Module that handles:
- Billing for patients
- Insurance processing
- Payment tracking

- Build a Reporting and Analytics Module that can:
- Generate reports on various hospital metrics
- Analyze data for trends and insights

- Implement a User Management Module with features like:
- Role-based access control to maintain security
- User authentication and registration for new staff and patients
- Profile management for user information updates

- Address areas of hospital management such as:
- Patient records management to keep track of all patient information and history
- Appointment scheduling for managing patient visits
- Inventory management to track hospital supplies

The ideal freelancer for this project should have:
- Proven experience with CodeIgniter
- Prior work with hospital management systems would be a significant advantage
- Strong problem-solving skills to identify and fix bugs in the existing system
- Excellent programming skills to develop new, efficient modules.