Build an IOS app. (Swift/Objective C).

Looking for an expert IOS developer who has more than 3 years of development experience and has 5/5 rating. Furthermore, developer must have deep understandings and knowledge of XMPP server and its core protocol to implement video and audio calling feature. Please only bid if you have advanced level skills in both of the above mentioned domains. No outsourcer please! Only bid if you have built something in IOS using XMPP server as a Backend. The knowledge of the backend is the key to understand and help my backend team to implement the server side and API of this project, So your job will be more or less implementing the UI and then hooking it with the server via an API exposed which will be built and provided to you one by one in parallel with your developmental phases on this project. Having said all this, it is still must to know working and how to implement XMPP so you can assist us whenever we need some help over our backend development. Happy bidding. Please type XMPP in your proposal if you have read and are fulfilling my above description. More details will be provided to you over the Chat.