Flutter Developer for OTT App and Android TV

I need a skilled Flutter developer to help with our OTT platform. We'll provide the existing code.

Key Requirements:
- Implement functionalities like user authentication, video streaming, and payment integration
- Ensure app compatibility on both iOS and Android
- Modify backend as necessary

Ideal Skills and Experience:
- Expertise in Flutter
- Experience in OTT platforms
- Strong knowledge in backend and frontend integration
- Familiarity with mobile app deployment on iOS, Android App and Android TV

Please share your relevant experience and approach to this project.