Mobile app for Geo tagging

I am looking for a skilled mobile app developer to create a mobile app for tracking and sharing locations. The app should have the capability to connect to existing APIs, although I am not entirely sure if this will be necessary. User authentication will be required for the app.

Ideal skills and experience for this project include:
- Mobile app development
- Experience with location tracking and sharing
- Knowledge of API integration
- Proficiency in user authentication protocols