android application for myusavpn.com

Hi all, I need android mobile application for [login to view URL] VPN services. The application should allow clients to use their [login to view URL] account on their mobile device and thus allowing them to use our VPN services and be anonymous and protected while they surf in internet from their mobile device. I already have the required screens and design of the application (PSD). The application must support the following VPN protocols: PPTP, L2TP (pre-shared key) and OpenVPN. It should also communicate with the website through some REST web services from where it will receive data for user information, account info and etc. The application should be very similar to Hotspot Shield vpn application [login to view URL] Other similar application of the main competitors are: [login to view URL] [login to view URL] [login to view URL] The final application package should be able to be published in the playstore so that the users can download and use it right on. The application should be supported on the latest Android versions (4.x) and if possible on the previous versions (3.x). The candidates should be able to provide some portfolio of their previous work. It will be a plus if they already have experience in building VPN clients and apps. More information and mock-up screens are available on request. Thanks and happy bidding.