Cross-Platform Social App Development

I'm looking for an experienced app developer to create a cross-platform social media application for both iOS and Android.

Key features include:
- User Authentication
- Push Notifications
- Job Posting
- Home Feed (similar to Instagram)
- Messaging Option
- Profile Page
- Video Call

Ideal skills and experience:
- Proven experience in developing social media apps
- Proficiency in both iOS and Android platforms
- Strong knowledge in implementing secure user authentication and push notifications
- Experience with video call integration

Please provide examples of similar work done.