Android E-Commerce App Development

I need a skilled Android developer to build a dedicated e-commerce application from the ground up. The core goal is to give users a smooth shopping experience on Android phones and tablets, so performance and intuitive UI patterns matter as much as clean code... (Budget: $30 - $250 USD, Jobs: Android App Development, Android SDK, API Integration, Database Management, Kotlin, Mobile App Development, Mobile App Testing, Payment Gateway Integration, PHP, User Interface / IA)