Flutterflow App Development with QR Code and Expense Management

Good morning, I have a Flutterflow app project almost ready, it needs the following: 1. Proper API implementation, API is from Rapid API. 2. Connection between a few pages 3. Backend connections.
I can pay $ 20-25 per hour to an experienced Flutterflow expert, to guide me about these.
Please let me know if this interests you.
Thanks.