Shopify E-commerce Website and App Development

I'm seeking an experienced developer to create a comprehensive e-commerce solution on Shopify, along with mobile applications for both iOS and Android.

The website and apps must include:
- Product catalog
- Shopping cart
- Customer reviews

Ideal skills and experience:
- Proven expertise in Shopify development
- Strong background in mobile app development for both iOS and Android
- Experience with integrating essential e-commerce features
- Ability to provide a user-friendly and aesthetically pleasing interface

Please include pricing details and a portfolio showcasing similar projects.