Cross-Platform Social Networking App Development

I'm seeking an experienced developer to create a social networking app available on both iOS and Android. The app should include:

- User Profiles: Personalized user profiles with photos, bios, and interests.
- Messaging System: Real-time messaging capabilities between users.
- Feed with Posts: Dynamic content feed where users can share and engage with posts.

Ideal Skills and Experience:
- Proven experience in developing social networking apps.
- Expertise in cross-platform mobile app development.
- Strong UI/UX design skills.
- Knowledge of real-time messaging protocols.
- Familiarity with user authentication and data privacy regulations.

Please provide your portfolio and relevant experience. Looking forward to your bids!