Wordpress Plugin Expert - Remote WP management - Design

We are looking for an experience wordpress plugin developer to lead development of the remote WP management service (you must be familiar with services like managewp, mainwp, etc) for the first phase we need a design document outlining approach to implement wp plugin to act as a worker for remote control panel functionality to include - plugins - install / uninstall / update - theme - install / uninstall / update - wp backup (db, db+web) - creating/updating posts - creating/updating pages Once design is finalized successful candidate will continue working with us on the long term project implementing the project