Freelance designer for Web app

Budget: $2,500 to $5,000

We're developing several Web applications that gather specific information from the user and then display relevant information to them. 

We're looking for a talented designer to work with our content team to design the GUI for the Web app, basing it off our existing website design and color scheme (to be provided). We would also like to find a provider who can, upon design approval, create valid HTML/CSS markup for the design, though this is not required. Please note, however, that you will NOT need to code the functionality of the application; you would only need to provide the GUI markup.

Applicants should have experience building Web application GUIs and experience in user experience design and concepts. You also MUST be based on the United States and agree to not outsource any aspect of the project.

To apply, please provide links to samples of Web application GUIs you've developed as well as what hourly rate you charge. Please also indicate whether you can provide HTML/CSS markup services.

Designer must be willing to sign a non-disclosure, confidentiality and transfer of ownership agreement. Applications without work samples or hourly rate will not be considered. Non-U.S.-based applicants will not be considered.