a job of work
What one has to do to achieve a particular goal or complete a particular task. Primarily heard in UK. The MP said there was still a job of work to be done to convince voters to pass the referendum. We've made good progress, but there's still a job of work before we can call it a day.
a job of ˈwork
(British English, old-fashioned or formal) work that you are paid to do or that must be done: There was a job of work waiting for him that he was not looking forward to.