BUILD a website for school as social network

The project is about a social network for a school which should include the following items: - Page for log in + register with the option to register using Facebook. Member profile page which should include a panel to adjust the member basic data an settings - messages - following who? - member Wall where views his or other posts. Such as Facebook pages, should be there a page for the school as whole + page for each row + page for each class) which will be available to members on any page of them to add new post and comment which his post appears publicly after approval from the page admin ... Page administration to set the admins roles of each page and selecting the authorities or the approval of the posts or cancel the admin permissions , suspension and the like as a control panel for the site. Site users are either ordinary members or admins for a page who have been assigned their roles through the control panel page at the previous item. The project is preferred to be bulit using Node.js but can initially be developed using php or in accordance with your professional advice according to experiences in previous scope. **** Please limiting the offer to those who have previous experience in development of concurrent high-traffic sites who are familiar with load balancing , security vulnerabilities and have solid web security experience****