Full Stack Secure React App Development

I'm seeking a skilled full stack developer with expertise in React to develop a secure, subscription-based application for me.

Key features:
- Inbuilt authentication using OAuth (e.g., Google, Facebook)
- Also authentication using email and password, both this and above using firebase.
- User roles: Admin and User
- Payment integration through PayPal
- Secure routes for paid users only

Ideal candidates should have:
- Extensive experience in full stack application development particularly with React
- Proficiency in implementing OAuth authentication using Firebase
- Experience with PayPal integration
- Strong skills in creating secure, user-role based access routes