iOS App - Maintenance and Publish

We have an iOS app created with HTML/CSS/JavaScript and Knockout.js, then compiled using Apache Cordova (phonegap). The development work has been done in Visual Studio 2103 and the source code is on Visual Studio Online, and we want to maintain this environment, so please don't respond if you want to use other tools. We need some minor maintenance and testing work done and then we need the app published to the store. The app is currently in beta test using TestFlight. Satisfactory performance on this project will lead to an ongoing relationship and more work. You must be available to take calls during most of the business hours of Melbourne, Australia, please don't respond if you are not available on the phone during these hours. I want to be able to communicate directly with the actual developer who will do the work, I will require Skype calls and screen sharing (or face to face meetings if you are in Melbourne). Other upcoming work involves an android and ios app with notifications coming from Microsoft Azure, so experience with this would be looked upon favourably.