Build CHERCHE Marketplace App

I am looking for an experienced and reliable developer or small development team to build CHERCHE, a complete second-hand marketplace mobile application for iOS and Android, from scratch. The application must include: - Modern, premium UI/UX design following my existing brand identity, colors, logo and visual references. - User registration, authentication and profile management. - Product listings with photos, categories, advanced search and filters. - Product publishing, editing and seller dashboards. - Favorites, integrated messaging and notifications. - Secure payments using MangoPay, including marketplace seller payouts. - Shipping integration with La Poste/Colissimo, including tracking and shipping labels. - Order management, buyer protection, refunds and dispute handling. - Firebase or another suitable secure backend, database, storage and server-side functionality. - Administration dashboard for managing users, listings, transactions and disputes. - Complete testing, bug fixes and publication on the Apple App Store and Google Play Store. The application will initially target Martinique, Guadeloupe, French Guiana and mainland France. I will provide the detailed specifications, branding and design references.

Requirements

- Proven experience building complete marketplace applications. - Strong Flutter and backend development skills. - Experience with payment and shipping integrations. - All source code must be developed and delivered through my private GitHub repository. - Full ownership and intellectual property rights must be transferred to me. - Fixed-price contract with milestone-based payments. - Final delivery must include a fully functional, tested and published application. Please provide examples of similar applications you have developed, your total fixed price, estimated delivery schedule, and post-launch maintenance options. I am looking for a serious, affordable and long-term development partner.