Improve an existing Classified website

Note : — ONLY BID AFTER YOU READ THE FULL DESCRIPTION — WE WILL NOT RUSH IN HIRING, SO NO NEED TO RUSH IN BIDDING — YOU MUST HAVE KNOWLEDGE IN Titanium, Appcelerator, Phonegap... — WE EXPECT REASONABLE BIDS Hello, We have an existing working classified website to which we would like to add some improvements : - Fix few design and coding issues. - Add Ad Expiration time. (A plugin is already available for this, however you may have to tweak it a bit) - Creating user groups, with different privileges accorded to each group. note that we must be able to edit these privileges. (A plugin is already available for this, however you may have to tweak it a bit) - Adding some new features which we'll tell you more about in private. Our classified site is already responsive, however we want a : - Mobile version of the site exists already, (with take picture function) however we want to customize it to be similar to a reference one, we'll show you in private. - An android and iPhone App, built with Titanium, (or any other platform you're familiar with). the app should be similar to a reference one, we'll show you in private. User might be able to take picture with the Apps, and as the site is already responsive, so we expect a reasonable bid for the apps. best,