Web Based Application

We need a web based application, data base intensive, no static pages. Functionality includes scrolling screens, pop up boxes and user testing on delivered content with test results delivered into data base .Built on enterprise level open-source technology for supported deployment on Windows, Linux, Unix or even Mac OSX. To be designed for optimal usability on tablet devices, such as iPad, it should fully supports any HTML 5 compliant desktop browser. Security: Needs a Username and password login required for access to site. Timed server side session validation active on all pages We will require a non disclosure agreement to be signed due to the proprietary nature of our software (Patent Pending). Once bid is assigned and NDA signed, we will furnish demonstration of a similar application that we already developed.. We will supply the layout, navigation and functionality required via pdf. Need this delivered in 4 weeks, total pages estimated to be approximately 25 total without testing admin screens for test results. We have the corporate branding & Web address for site.