Simply hired / indeed.com

Hi, I am interested in desgining a website similar to simplyhired / indeed.com. Simplyhired pulls the jobs off monster,careerbuilder,hotjobs, etc... and reposts them on the main site. It also keeps track of users and their last search engines. Addition to this I will add little bit like (post your resume / employer login, so that they can post ads). If you have understood what exactly I am looking for, then revert to me with your rate and time frame.