Web Developer Job in Longview, Texas

Looking for a developer that can implement my six separate websites into one website just like The Gap (www.....com) has done to incorporate Banana Republic and Old Navy. A single sign on allows the User to access each of the different sites without signing off and back on. Check https://....com and see how with subdomains the others eg. Old Navy - https://....com/. My websites are listed at https://....net