WordPress plugin developer

I'm seeking someone that is very familiar with WordPress and has experience creating and maintaining plugins and themes.

I have a collection of plugins that I've created that I need help adding new features. I also have other plugins that I plan to create and would like to have someone competent that can extend my framework.

Please include examples of your plugins and information about your level of expertise with WordPress.

Please but WORDPRESS DEVELOPER in the subject line of your email.