Delivery Shopping App Development

We are looking for an experienced Full-Stack App Developer or Agency to build the MVP (Minimum Viable Product) for Ghar Bazaar – a hyperlocal marketplace app connecting local home-makers, women entrepreneurs, farmers, and local craft creators with nearby consumers.
​The platform consists of three main modules:
​Customer App (iOS & Android)
​Seller/Vendor Portal (Mobile-friendly web/app interface)
​Admin Dashboard (Web-based management tool)
​Key Features & Functional Requirements:
​1. Customer App (Android & iOS):
​Auth & Profiles: Mobile OTP login/signup, address management.
​Discovery: Search by pincode/locality, category browsing (Handmade, Organic/Farm Goods, Homemade Items).
​Product Details: High-res photos, ingredients/materials, seller info, stock status, and estimated delivery times.
​Cart & Checkout: Serviceability check via Pincode, delivery fee calculation, and payment gateway integration.
​Order Tracking: Real-time order status updates, delivery tracking, and order history.
​Reviews & Ratings: Verified-buyer review system and reporting options.
​2. Seller / Vendor Panel:
​Simple Onboarding: Easy registration with KYC/FSSAI document upload section.
​Inventory Management: Add/edit listings (photos, stock, pricing, pack sizes, preparation time).
​Order Management: Accept/reject orders, packing checklists, dispatch/handover status updates.
​Earnings & Payouts: Clear summary of completed orders, commission deductions, and payout history.
​3. Admin Dashboard (Web Panel):
​Moderation: Seller verification, document checks, and product listing approval/rejection.
​Order Oversight: Dispute management, cancellation handling, and refund processing.
​Platform Control: Commission configuration by category, pincode serviceability settings, and support ticket management.
​Analytics: Basic seller performance, order metrics, and revenue tracking.
​Technical Stack & Architecture:
​Frontend: React Native or Flutter (Cross-platform for iOS and Android).
​Backend: Node.js / Python (Django/FastAPI) / Laravel with clean RESTful APIs.
​Database: PostgreSQL / MySQL (Relational DB for strict inventory and order handling).
​Integrations:
​Payment Gateways (Razorpay / Cashfree)
​SMS/OTP Gateway (Twilio / Msg91)
​Push Notifications (Firebase Cloud Messaging)
​Maps & Pincode Lookup API
​Scope of Work & Deliverables:
​Clean UI/UX implementation based on wireframes/prototypes.
​Production-ready, clean source code with structured documentation.
​Fully functional APIs and secure backend services.
​Deployment to Google Play Store & Apple App Store.
​Admin Web Dashboard deployment on AWS/DigitalOcean.
​Post-launch bug support (at least 30 days).