CMS & Web Services For Mobile Application

Dear Freelancer, We are looking for someone who can help us in developing CMS & Web Services for Mobile Application. Here is what we are looking for: 1. Basically it will be a quiz application with real time 1to1 and practice matches . 2. We will requiring an interface to add,delete,edit categories and questions in three languages initially but can be extended later on. 3. We need to keep track of the users games he has played with scores and results. 4. We need to keep track of how many questions particular user has answered in a particular category. 5. We need to store list of categories each user has followed. We will be having different categories or topics. 6. There will be two levels in CMS. One for Data Entry While Second one with full right including approving of the Data. 7. We need Leaderboard Management (User Rankings i.e. Monthly, Yearly or All Time) in Friends, Country and Globally. 8. We need to keep track of users following each other or following any/all topics. 9. Login / User Registration, Profile Updation, Preference Setting. Further detail will be provided to the selective freelancers. Best of Luck :) Thanks & Regards, Talha