Mobile App Development (iOS & Android) – CS-Cart Multi-Vendor Integration We are building a vertical marketplace powered by CS-Cart Multi-Vendor and are looking for an experienced mobile developer or small team to develop a buyer-focused mobile application for both iOS and Android. The app will function as a direct extension of our existing web marketplace. The backend (CS-Cart) will remain the single source of truth — we are not rebuilding backend logic. The mobile app must consume existing REST APIs and extend them only where strictly necessary to support mobile flows. We are prioritizing a clean, stable MVP with scalable architecture. The goal is to launch a solid first version and iterate in future phases. Core Requirements Full integration with CS-Cart Multi-Vendor Consumption of existing REST APIs Creation of additional endpoints only if required for mobile support Real-time synchronization of products, users, and orders Secure authentication aligned with the web platform Scalable, modular mobile architecture designed for future expansion MVP Scope (Phase 1 – Buyer App Only) User registration and login Product browsing (categories, search, filters) Product detail view Shopping cart Checkout process (integrated with existing backend logic) Order history and order status tracking User profile management Push notifications for key events (e.g., order updates) This phase focuses exclusively on buyer functionality. Vendor/admin features, advanced personalization, and complex add-ons are out of scope for the initial release and may be considered in later phases. Ideal Candidate We are looking for a developer or team with: Proven experience building mobile apps integrated with e-commerce backends Strong REST API integration expertise Experience working with marketplace or multi-vendor systems Published apps in the App Store and/or Google Play Please include: Your proposed technology stack (e.g., Flutter, React Native, or native) Estimated timeline for MVP completion A detailed and realistic budget proposal based strictly on the defined MVP scope We value clean architecture, strong communication, and practical execution focused on delivering a stable first release. If the collaboration is successful, there will be opportunities for continued development in Phase 2 and beyond.