Video Call Social Media App

I'm looking to develop a social media application that enables users to connect via video calls. The app should be available on both iOS and Android platforms, and will include user profiles.

Key Requirements:
- User Profiles: Users should be able to create and customize their profiles.
- Video Calling: High-quality video calling feature.
- Additional features: Group video calls, screen sharing, and virtual backgrounds would be a plus.

Ideal Skills and Experience:
- Experience in developing mobile apps for iOS and Android.
- Strong background in video streaming technology.
- Familiarity with social media app design and user experience.
- Ability to implement customizable user profiles.

Please provide examples of your previous work related to mobile applications and any relevant technologies you plan to use.