Bug Fixing On a Bespoke CMS (Content Management System)

We are seeking an expert PHP and MYSQL programmer to fix problems in our Content Management System. Our website [login to view URL] uses an advanced bespoke backend CMS. However, our programmer has now moved away and we need someone to fix some bugs that have been discovered. The ideal candidate will have an expert rating in both PHP and MYSQL as well as having a very good command of the English language. We estimate it to be 10-20 hours of work for a new programmer. If the project works out, we will seek the programmer to add some functionality to our CMS. 1) Coder must be willing to sign a basic NDA to protect our Content Management System 2) An interested coder will be able to view the quality of code they have to work with and the nature of the work