Flutter WhatsApp Clone with whatsapp meta Business API

I'm looking for an experienced Flutter developer to create a WhatsApp-like application using the official Facebook Meta WhatsApp Business API. The app should support messaging only.

Key Requirements:
- Authentication via email and password
- Chat interface with:
- Text messaging
- Multimedia sharing (images, videos)
- Read receipts and typing indicators

Ideal skills and experience:
- Proficient in Flutter development
- Experience integrating with WhatsApp Business API
- Strong background in building secure authentication systems
- Ability to design intuitive chat interfaces