Retail Locator & Seller Marketplace App

I'm looking to create a dual-purpose mobile application for both iOS and Android. The primary function of this app will be to assist buyers in locating products in nearby retail shops, using either a specific pincode or their current location. Simultaneously, the app will provide a platform for sellers to list and sell their products.

Key Features:
- Product discovery based on geographical proximity
- Seller interface for product listing and sales
- Dual search options: by pincode and current location
- Cross-platform compatibility: Both iOS and Android

Ideal Skills and Experience:
- Proficiency in mobile app development for both iOS and Android
- Experience in creating e-commerce or marketplace apps
- Knowledge in integrating location-based services in mobile apps
- Understanding of UX/UI design principles for retail apps
- Capability to implement secure and user-friendly seller interfaces

I am looking for a freelancer who can deliver a high-quality, efficient, and user-friendly application that meets these requirements.