You can now see the list of job titles by going to Admin > Settings > Lookup tables > User > Jobs or click:

https://ewassist.co.uk/CC/Admin_Lookup_LUJT.aspx

The by clicking detail against the job title will open the edit page for that job.  The lists below show who has this job title linked to them.  There are two ways to link an employee to a job title.  The first is the main, default jpob title for that employee (changed on the people > persons > work page) and the second way is to link it via a Group.  Both ways are listed below.  You can move these people to other jobs.

If necessary you can make the job title un-live if it is not needed any more.