I need a skilled developer to create a functional Android e-commerce app from the ground up. The goal is to deliver a smooth, modern shopping experience that lets users browse, add items to a cart, and complete secure payments—everything optimized for today’s Android devices. Core scope • Design mock-ups that follow Material Design principles and reflect a clean retail look. • Build the native Android app in Kotlin (or Java if strongly preferred) with a modular, well-documented codebase. • Implement product listing, search and filtering, detailed product pages with images, and a persistent shopping cart. • Integrate a reliable payment gateway for credit/debit cards and popular wallets. • Provide basic order tracking and push notifications so customers know when items ship and deliver. • Connect to a straightforward admin API (existing or lightweight custom) for product management and order updates. • Package an APK plus clear setup instructions so I can test on physical devices and the Play Console. Nice-to-have (not mandatory but welcome if feasible within scope) • Coupon or discount code handling. • Customer sign-up via Google or email. • Basic analytics hooks (Firebase) for events like add-to-cart and purchase. Acceptance criteria 1. App installs and launches without crashes on Android 8+. 2. Users can browse, add to cart, and place a test order end-to-end. 3. Payment flow runs in sandbox mode and returns confirmation. 4. UI matches the approved mock-ups and remains responsive on phones and tablets. 5. Code is clean, commented, and handed over via Git. If you have prior e-commerce app experience, please share a short demo or screenshots. I’ll be available for quick feedback cycles, and I’m ready to start as soon as we align on the tech stack and timelines.