Cross-Platform Social Networking App Development

I am in need of a professional app developer to create a social networking mobile application that should be compatible with both Android and iOS platforms.

Ideal Skills/Experience:
- Proficient in cross-platform development (React Native, Flutter or Xamarin)
- Strong background in social app development
- Experience in integrating APIs
- Familiarity with iOS and Android UI design principles
- Proven record of successfully deployed apps on App Store and Google Play

Please ensure your bid includes:
- Estimated time for completion
- Preferred platform and reason for choosing it
- Previous similar work samples.

Looking forward to working with dedicated and skilled freelancers. Thank you.