If you pass the interview, the company will generally notify you that it will conduct a background investigation process. You can also pay attention to the application form filled out before the interview to see if there is a note that the content you filled in will be verified.
There are generally two ways for companies to do back-up interviews:
First, the company HR does the back-up interviews themselves, usually to verify your basic information and academic qualifications, and to find the human resources department of your former company. Colleagues ask you about your date of employment and resignation, the position you held, the reason for your resignation, your salary situation, and whether you had any labor disputes, etc.;
The second is to ask a third-party back-up service provider to conduct a back-up job, such as For a more serious background check, in addition to the above basic data verification and work resume verification, we will also conduct a more in-depth investigation, interview your direct superiors or colleagues to understand your work performance, and ask questions about your abilities, qualities and performance.