Flutter Firebase Mobile Game

I'm developing a mobile game with flutter and need some support, since I don't have enough time to work on it.
Therefore I'm looking for a Flutter senior developer with experience on the following topics:

- Firebase Auth (Google, Facebook and Apple SignOn)
- Firebase Firestore
- Firebase Messaging
- Firebase Analytics
- Admob
- In App Payments
- Flutter Provider
- Facebook integration (Friends)

Please provide the following with your application:
- years of experience with flutter
- references (links, videos or photos)
- education
- availability

Thanks
Cornelia