I haven't but this line of thought recently had me thinking good questions to ask an employer are: - How long have you been trying to hire someone for this rol

I haven't but this line of thought recently had me thinking good questions to ask an employer are: - How long have you been trying to hire someone for this role? - What's the turnover rate on your team? - Why did the last employee leave? - Why did the last candidate reject your offer (if applicable)? - What's the average pay rate for people on the team? You could probably ask some of these questions without raising eyebrows, at least with rewording them to be more tactful. Reference checking past employees is brilliant and we do it anyway with review sites. Asking them for a reference at least gives the employer a chance to select someone they prefer. I do try to ask questions of each interviewer about how they like the company, as a sort of reference check, and I think that's basically understood as being appropriate.