Web Application Using Social Network API's and Others

I am looking to build a web application (on a website) that allows a user to provide the application access to their social network, and the application will search through the user's social network friends profiles (friends on LinkedIn, Facebook- Using the APIs of these social networks) for the information on their profiles including employer names and city. Simultaneously, the application will use the APIs of websites of job search sites (like [login to view URL], [login to view URL], etc) and will search for job opportunities from companies that match the companies listed on the social network profile of the user's friends. When the application processes and finds results, the user will get a list of ideal job opportunities on a page on the web application. Once the user finds the job that they would like to apply for, they should be able to begin the application process on the web application website.