Kotlin Multiplatform Expert Needed: Android to iOS Conversion

I have an Android app that I've developed and I need someone who can use Kotlin Multiplatform to convert it to iOS. The app currently has the following functionalities:
- User authentication and profiles
- Firebase and Firestore integrations
- Multiple screens

The user interfaces are designed using Material Design.

Ideal candidates for this project should have:
- Extensive experience with Kotlin Multiplatform
- Proven track record of converting Android apps to iOS
- Proficiency in implementing Material Design
- Knowledge of integrating with Firebase services, specifically Cloud Firestore and Authentication