Cross-Platform React Social Networking App

I'm looking for a skilled React developer to help me build a cross-platform (iOS and Android) social networking mobile app. This project is ideal for a freelancer with a strong background in React and mobile app development, particularly in creating interactive, user-centric apps.

Key Features:
- User Profiles: The app will need to allow users to create and manage their own profiles.
- Messaging System: An integrated messaging system for user interaction is essential.
- News Feed: A dynamic news feed to keep users updated and engaged.
- Calendar: A built-in calendar functionality for scheduling and event tracking.

The ideal candidate will have experience with:
- Building cross-platform mobile apps using React.
- Implementing complex features like messaging systems and news feeds.
- Creating user-friendly, interactive interfaces.

Please provide examples of previous similar projects you've completed.