Shopify Kids Store Mobile App Development

I need an experienced mobile app developer to create an iOS and Android app for my Shopify kids store. The primary function of the app will be e-commerce, allowing users to browse and purchase products.

Key Requirements:
- User Authentication: Email and password
- Additional E-commerce Features: Wishlist, product reviews, order tracking

Ideal Skills and Experience:
- Proficiency in developing mobile apps for both iOS and Android platforms
- Experience integrating Shopify with mobile applications
- Strong knowledge of implementing secure email/password authentication
- Familiarity with adding wishlist, product reviews, and order tracking features

Please provide samples of your previous work and estimated timelines.