[Xamarin] VPN connection application for Android and iPhone.

We are a paid VPN service in Poland. We need a simple app produced in Xamarin that connects users (iOS and Android users) to one of our OpenVPN servers. I believe it can be easily finished within 1-2 days by a specialist, an experienced Xamarin developer. How the app needs to work (rough details): 1. user downloads app from Google Play or Apple store and launches it, 2. user is asked for a login and password (HTTPS API for verification on our side), 3. after logging in, several elements should be available: - current IP address visible to Internet, - remaining time (this is a paid monthly service), - a link to our website - "Extend membership", - a dropdown list of available servers to connect to (HTTPS API on our side), - a button "Connect to VPN". 4. After clicking the connect button, an .ovpn configuration file is downloaded in the background and used to connect to one of our OpenVPN servers, 5. after establishing a connection: - button should turn into "Connected. Click to disconnect." and IP address should update to a new given address, - all internet connection on the mobile phone should be forced to use the connected VPN, - active connection details should be placed and stay in notification panel (similar how OpenVPN android app works) - with information about current IP address and "You are connected/You are anonymous" text. Skills required: - 2+ years experience in mobile app development in Xamarin, - fluent written english, - available on Skype to chat and coordinate with us while working on the project. Only serious bidders please. This may be ongoing work opportunity for the right person - we have other projects that require mobile apps.