E-Commerce Android App Development

I'm looking to develop an e-commerce Android application for selling physical goods. The app needs to be user-friendly and secure, with the following key features:

- Product search and filtering
- Shopping cart and checkout
- User reviews and ratings

User registration and login will be via email and password.

Ideal Skills and Experience:
- Proficiency in Android app development
- Experience with e-commerce app features
- Strong UI/UX design skills
- Knowledge of secure authentication methods
- Familiarity with integrating user reviews and ratings systems

Please share your portfolio and relevant experience.