Cross-Platform Social Networking App Development

I'm looking for an experienced mobile application programmer to develop a social networking app that runs on both iOS and Android.

The ideal candidate should have:
- Proficiency in cross-platform development frameworks (e.g., React Native, Flutter)
- Strong background in UI/UX design for mobile applications
- Experience with backend integration and database management
- Knowledge of social networking features and algorithms
- Ability to implement robust security measures
- Excellent problem-solving skills and attention to detail

Please include examples of previous work and any relevant certifications.