Multiplatform Simple Video Calling App

I'm looking for an experienced developer to create a simple and minimalist video calling application that supports video calling, voice calling, chat messaging, and screen sharing. The app should be designed to be compatible with both iOS, Android, and web browsers.

Key Features:
- Video Calling
- Voice Calling
- Chat Messaging


Ideal Skills:
- Proficient in mobile app development for iOS and Android
- Experience in web development for browser compatibility
- Knowledge of video calling and chat protocols
- UI/UX design expertise for creating a simple and minimalist interface.