They do an extensive background check… social media Facebook, instagram etc . If they see you party too much unqualified. First call phone interview and then 2nd round of interview tour of the building. Then wait 2 or 3 weeks. And if you didn’t get in. Don’t expect another chance if the job is always a new job opening ( some one quit every 3 or 6 months even wait for 1 year). They will put you in blacklist.

Simple, you interview with two department managers and a higher up manager. Ask you simple questions about previous employers/related science classes. Go through your resume. Very simple takes about 30 minutes. Submit resume thru craigslist.