Urgent required Professional Android App Development

I'm in need of a skilled Android developer to build a professional, corporate-styled e-commerce mobile app. The app must come with an admin panel for managing different roles (manager, supervisor, vendor) and should allow supervisors to create vendors and customers. Basically, we want to create this app for the local community. We aim to connect merchants and consumers, allowing merchants to sell any type of product. Key features include: - User-friendly Interface: The app should have a polished, professional, and corporate design. - Product Catalog: A simple category and subcategory system for product organization. - Product Search and Filtering - Shopping Cart - Secure Payment Gateway Integration - Order Tracking The ideal candidate for this medium-sized project (1 month duration) should be proficient in the following skills: - Android App Development - Java or Kotlin - UI/UX Design - Firebase or other backend integration - Payment Gateway Integration - API Integration User authentication for the app should follow a simple system where users are generated and given custom passwords. An experience level of intermediate or higher is preferred.