Built An Android Application From Scratch

Hello there, Well I am in search of an Android application developer who can help me in developing a "radio aggregation app." The functionality planned as of now - Unlimited Radio Stations* - Possibly Multi-Country Platform Phone-Tablet Compatible Social connect About & Contact Page Upload to Google Play Advertising System Secure System or better say a secure app Guide me with the basics * App will be a FREE app. ** Currently proposed with major developed and developing countries while once the app will take a pitch in coming future, then will hire the guy for future enhancement. *** Will hire the same guy as soon as future developments required (directly proportionate to what exactly comes with Android updates) Questions for developer - 1. Please showcase similar app development experience. The apps which you developed in recent times 2. Time you think you will be require to make the app as well as explain the process on how you will aggregate the different radio stations data. Thanks Karan