PHP Web App Enhancement & Feature Integration

I'm looking for a skilled PHP developer to modify my existing web application. The project involves adding and merging several features, as well as redesigning some aspects of the application.

Key Requirements:
- Implement User Authentication: A secure and efficient user authentication system needs to be integrated.
- Payment Gateway Integration: I require a reliable and secure payment gateway to be incorporated into the application.
- Reporting Tools: Add comprehensive reporting tools for data analysis.
- Role-Based Login Access: Implement a system for varying user access levels.
- Feature Merging: Specifically, the borrower and loan features need to be combined.

Ideal Skills:
- Proficient in PHP and web application development.
- Experience with User Authentication systems and Payment Gateway integrations.
- Prior work involving Role-based access systems is a plus.
- Strong skills in creating and integrating Reporting Tools.
- Ability to redesign and enhance existing features.
- Proficient in MySQL

Please bid only if you have the relevant experience and skills.