Maintain advanced Android app and Cordova app

We have two apps that we need to maintain, we are searching for a full time employee, but until the right skilled person is hired, we need assistance in maintaining our current apps. This is not a full time position, but freelance for a dynamic number of hours until we have hired the right person that will work onsite here. Information about the apps: App 1 - Android App for controlling an embedded system - Released in App store, working 100% - UDP communication (encrypted) with controller over wifi - Automatick discovery over multiple wifi networks - Advanced dashboard that presents graphics and values - Lots of menu for tuning 300 setup parameters - Advanced time series charts with a lot of datapoints - Bar charts for other key values - Self developed automatic update over the air both from own server (rooted) or google play (non rooted) - Runtime update of language files from server for 10 different languages - Various hardware platforms, support multiple types of embedded devices App 2 - Cordova App for controlling a simpler embedded device - Not released in app store - working 98% - Jquery Mobile - UDP communication with controller over wifi (self developed cordova plugin) - Advanced encryption (self developed cordova plugin) - Change of network and search of embedded devices over multiple WIFI networks - Rest is written in html/javascript so code is shared between platforms What we need from you: - Expert in Android development for various platforms from 4 to 6 and soon 7 - Expert in Jquery Mobile (we are considering Ionic in the future) - Flexible and you are a fast learner in existing code and infrastructure - Good at adding new features without breaking exisiting logic - Good at testing and making it work properly before delivery to us - Master degree in computer science or similar education - Documented experience from apps we can try in google play If you are interested in onsite full time job in Denmark, in the northern Jutland, you might be our next full time employee. Please send relevant information CV , Eductation papers, work experience, released apps on app store and your price / hour. Regards Jens