Complete App Development in Rect Native with EXPO

Project already started, with 95% complete layout. Where it has 3 roles: Administrator, Commerce and Client. Developed with React Native and Goggle Firebase. We need a developer who completes the functionalities of our spanish ecommerce App. And perform the corresponding iterations between the different Roles. Features to finish: - Integrate Notifications: Application for Approval Registration / Purchase Confirmation / Delivery Confirmation. - Add product to the shopping cart. - Tracking of the purchase. - Integrate payment gateway (Peru). - Show the results in the history.