What were your starting salary and final salary at [company]?
This is a top interview question for checking credentials. The pay should match their seniority level. You should also see that it has risen at least by what you'd expect during their time at the company. Red flags: Salary hasn't risen at the normal rate for a long time. Salary does not match position — for example, they had a senior-level job title but were paid an entry-level salary.