Business Directory with Facebook, Twitter Integration

I have a website I started and would like to add addtional functionality. I would like to build a custom business directory, but I need it to integrate with Facebook as login, and some of the plugins provided by facebook. I need every user of the website to have their own profile page and be able to edit, then I need front end page where searchers can search by category, and display the business profiles that match. Although, I will provide a layout of how I would like the profile page to look and how the results should appear. Your input to create this is welcomed. The code PHP and MySQl, the hosting is godaddy. I am looking for custom code to keep it simple and clean, not wordpress or plugins. Please have a ranking of 9 or higher when bidding. Also, please have samples of code where you have done facebook login integration. Thanks. I will own all code and rights. I will send the link to the website to the developers being considered. Thanks. Ever