Admin Console for Website

We would like to create a way to have an Administrative/Manager Console for our website. We want it so we can create, edit, and update? our own webpages. Complete with style/font/color changing ability, update/addition of metatags and descriptions, and the ability to change title or header of webpage. Please contact us if you have done this type of project in the past or have the expertise to get this project done in a efficient and timely manner. Thank you!