React Native App Enhancement & Deployment on iOS and Android -- 3

I'm in need of an experienced React Native developer to help me enhance my partially developed app. About 80% of the work has been done for Android and I need to integrate various new features, fix some UI/UX and functional bugs, and ensure the app is ready for both iOS and Android Playstore.

Key Tasks:
- Integrate new features into the app, based on a provided list
- Troubleshoot and fix UI/UX issues and functional bugs
- Ensure the app is compatible and fully functional on iOS
- Prepare and launch the app on both iOS and Android Playstore

Ideal Skills:
- Extensive experience in React Native development
- Proven track record of iOS and Android app deployment
- Strong troubleshooting skills for UI/UX and functional bugs
- Ability to add new features seamlessly into an existing app
- Familiarity with integrating APIs into mobile apps

Please note, the new features to be added will be based on a provided list of defects and enhancements.