Generally, enterprises with more important positions or standardized management will conduct background checks on candidates. It's actually quite simple. You will call the human resources department of your last company directly or try to find out your boss's contact information, your work situation and salary.

Of course, you may be asked to leave the contact information of your last company on the application form, or you may play tricks in this place. However, integrity is very important in every industry, and the circle of hr is actually very small. It's really not difficult to ask a person.