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UI designer for front end of web tools

We are a small company in the healthcare space and I am looking for user interface design services that combine emotional motivation with usability. Please, let me know if you are interested in the project I am describing below.
Our web product is directed at patients and their families facing complex treatments (so the UI has to be fool-proof and connect at the appropriate mood and with a message we identified from our patient interviews). There are about 40 pages in our web system. Our product is different from regular/ common websites: while regular common websites are mostly static and text-heavy our product
• Is dynamic: It dynamically populates pages with both qualitative and quantitative content depending on user actions and user information. Therefore, the UI needs to communicate with a content management system and an analytical engine.
• It relies on diagrams and less text to communicate the message of each page (while keeping a balance with SEO)
We are looking for someone who has experience combinining usability with the artistic aspect of UI design and imbedding all pages within the marketing framework and site organization (information architecture) we will be providing.
The output for the project will be a UI that we will launch. It should be populated with our qualitative content and should allow us flexibility to continuously edit per our user feedback.. Therefore, html programming is required. More programming skills to link the UI to the back-end database and populate with quantitative content would be nice to have but are not absolutely necessary (we have a php programmer who can do that when given a high quality navigable front end UI)