Convert new design to new Joomla templates

We have just created a new design for our site. We have 7 areas of our site we need converted into the new design and the new Joomla template. This includes linking to the new header and footer as well as converting the page layout to look like the new design. Example: [login to view URL] needs to be converted to: [login to view URL] As you can see all we have is pasted the wording in. we need it fixed up with updated font and sitting correctly on the width of the page. Example: [login to view URL] needs to be converted to work with our new template: [login to view URL] As you can see we have just copied the wording across but there is no design set up. You will set access to the source code of the current site to be able to convert it. You must be able to use GIT/Bitbucket to pull the spurce code and then commit all the chages you make as we have 4 other coders working on other parts of the site. Must have Joomla experience. Wordpress skills doesn't mean you can work on Joomla. Must be able to meet the target set.