Cross-Platform Social Media App Development

I'm looking to develop a social media app for both iOS and Android platforms. The app should include:

- Interactive Map: Users can explore and find events.
- Event Lists & Submissions: Users can see upcoming events and submit their own.
- User Profiles: Personalized profiles for all users.

Ideal Skills and Experience:
- Proven experience in developing cross-platform mobile apps.
- Strong background in social media app functionalities.
- Proficiency in integrating maps and event management features.
- Familiarity with user profile customization and database management.

Please provide examples of similar work done and your approach to ensure a smooth user experience.