Flutter App Deployment and Configuration

I need an expert in deploying, configuring and setting up a Flutter app on both the Play Console for iOS and Android, as well as server deployment, domain setup and Firebase integration.

Key Requirements:
- App setup on Play Console for both iOS and Android
- Server deployment and domain setup
- Comprehensive Firebase integration and configuration
- Payment gateway setup

Skills and Experience:
- Proficient in Flutter
- Extensive experience with Play Console
- Proven track record in server deployment and domain setup
- In-depth knowledge of Firebase
- Familiarity with payment gateway integration