Cross-Platform Social Networking App Development

I'm seeking an experienced mobile app developer to create a social networking app for both iOS and Android platforms. The app will focus on messaging, photo sharing, and user profiles.

Key Features:
- Messaging: Real-time chat functionality
- Photo Sharing: Upload, share, and comment on photos
- User Profiles: Customizable profiles with personal information and activity logs

Ideal Skills and Experience:
- Proven experience in developing cross-platform mobile apps
- Strong knowledge of messaging and photo-sharing functionalities
- Expertise in UI/UX design for social networking apps
- Familiarity with both iOS and Android development environments

Please share your portfolio and relevant experience. Looking forward to your proposals!