Wordpress programmer and Designer Wanted

I am looking for someone to help me amend my wordpress sites. I need a good wordpress programmer who has design skills to the changes they make are not only functional but also look really good. The worker needs to have experience and be comfortable in: - amending and customising themes - CSS - adding custom code and plugins - emergency changes These are just a few things and the winning bidder needs to be able to program a variety of change requests.