Build a hybrid mobile application using a pre-made chat SDK and design files

My company is focused on developing a cross platform (iOS and Android) application that enables users to do the following things: 1. Chat with one another 2. Call and video call one another 3. Search for other users by name or office 4. Send connection requests and remove users 5. Other minor features *A full list will be included in the interview Most of the features above are included in an SDK we have already purchase and currently function perfectly on our website and our desktop applications. We just need a developer to integrate the SDK into our design file (made in sketch) so that the SDK functions in the way we need it to. Currently, the SDK source code enables us to offer chat, a user system, search, call, video, and several other things. The only custom features we need are the abilities below: 1. Search by office 2. Send connection requests (like friend requests) 3. Sign up directly in the app rather than on our website The database can be synced with Firebase on the backend of our SDK's admin panel which we can give access to. More information can be given upon request. One final note: We have already built out the designs in Sketch and would be happy to annotate where necessary. This means that the majority of our application's designs are complete and can be altered if needed.