Cross-Platform Social Networking App Development

I'm seeking an experienced app developer to create a cross-platform social networking app. The app should include the following features:

- Messaging: Real-time communication between users
- User Profiles: Personalized profiles for each user
- Photo Sharing: Upload and share photos

Ideal skills and experience:
- Proven experience in developing cross-platform apps
- Strong background in social networking app development
- Proficiency in real-time messaging integration
- Expertise in user profile and photo sharing functionalities

Looking forward to your proposals!