Mobile App Setup & Fixes

I need an experienced mobile app developer to help set up and fix my social media app.

Key Requirements:
- Set up and fix user authentication
- Set up and fix in-app messaging
- Set up and fix push notifications
- Ensure the app works seamlessly on both iOS and Android platforms

Ideal Skills:
- Proficiency in mobile app development for both iOS and Android
- Experience with user authentication, in-app messaging, and push notifications
- Strong problem-solving skills and attention to detail
- Previous experience with social media apps is a plus