Flutter App Integration and Deployment

I'm seeking an experienced Flutter developer to integrate APIs, test our app, and launch it on the Play Store and Apple Store. The design (front end) and backend are complete. The app is similar to Online Doctor Consultation applications available in the market. The app will be available for users internationally.

Key Tasks:
- Integrate APIs (Documentation provided)
- Ensure smooth payment gateway and audio/video calling functionalities
- Test app on iOS and Android for the latest available versions.
- Deploy to Play Store and Apple Store

Ideal Skills:
- Proficiency in Flutter
- Experience with API integration
- Familiarity with payment gateways and audio/video calling APIs
- App testing and deployment expertise
- Data Privacy and security expertise

In total there will be approx 110-120 APIs.

Please provide examples of similar projects completed.