Cross-Platform E-Commerce Mobile App

I'm looking for an experienced app developer to create an e-commerce mobile app for both iOS and Android. The primary function of the app will be to facilitate online purchases. In particular, it is essential that the app includes a robust product search feature for users.

Ideal candidates would have:
- Proficiency in developing cross-platform apps for iOS and Android
- Experience in creating e-commerce applications
- Understanding of user interface design for optimal product search functionality.