React Native Mobile App

I have a very large react native mobile app that utilizes game mechanics and is a task based system. It is for android and iOS. I also have a web app that uses react as the admin panel. We have several optimization issues that I have had different freelancers working on. We are running a mongo DB database. The app is on MS Azure app services. I need about 10 new pages on the mobile app and about 30 new pages on the admin panel. I need the UX designed for these new pages and new out features. I also need the connection to snap kit. I have the access to camera kit closed beta from Snapchat. Need the integration into the app as well.