Flutter Mobile Developer for Social App

I'm looking for a seasoned mobile developer with Flutter expertise to help me build a social networking app.

Ideally, you should have experience with:
- Developing and launching social networking apps
- Implementing user-friendly interfaces
- Ensuring smooth performance and bug-free experience
- Integrating with backend services
- Adhering to best practices in mobile app development
Please note, specific core features and user authentication methods have not been decided yet, so your input and suggestions will be highly valued.