Social Networking App Development

I'm looking to develop a mobile social networking app for both iOS and Android platforms.

Key requirements include:
- User authentication (sign up, login)
- User profiles with customizable settings
- Friend/connection requests and management
- Real-time messaging and notifications
- Content sharing (text, images, videos)
- Search and discovery features
- Privacy settings and reporting mechanisms

Ideal Skills and Experience:
- Proven experience in mobile app development
- Strong knowledge of iOS and Android platforms
- Background in social networking app design
- Expertise in real-time messaging integration
- Familiarity with user authentication and data privacy regulations

Please share your relevant portfolio and estimated timeline.