Marketing System text & page corrections

Existing online marketing system *complete & functioning. Experienced programmer required to update content within site - no new pages required, changes to existing pages. This is more of a long term tech support & site maintenance position for ongoing work, you will not answer to system members, myself as the owner of the site only. This project should be based on no more than 15hrs of your time, I can provide ongoing 20-30hrs work per week IF you also understand and an expert of WordPress.