When you apply for a job, they want you to fill out an application, at least, and the amount of information they want depends on the position you are applying for. In this application your potential employer will want to know some basic information about you and your past work experience. This will let them know if you are a suitable candidate for the job and if you posses the skills and background necessary. Some positions will require an actual background check that determines your criminal past, citizenship and other legal personal information.
It shows past work history and names and numbers of previous emplyers
as much as they want to see