2. Where do you see the $(team you're interviewing for) in 2 years? - do they respect the team or are they looked at as an annoying expense? - do they talk about training opportunities, growth, etc?
3. What is your favorite aspect of working here? - If it's a stock bullshit answer, I dig more. - If they duck it, that's a smell. - If they answer honestly, then that's a really valuable datapoint.
4. Every company is carrying some amount of technical debt -- what's the tech debt situation here? - how much they think there is - what they're doing about it
5. How would you describe the culture and if/how it is maintained?
5a. Is there an active mentoring strategy? What does that look like?
I made a video about this a while back with a few more questions, and some people left useful comments on it with their own experiences/additions: https://www.youtube.com/watch?v=s9XPTay-x8g
1) If you could change one thing about this place by waving a magic wand, what would it be? (ties in with above but more open ended)
2) Who do you see as your competition?
3) What do you hope to gain by hiring somebody?
4) Why isn't this role being filled from within the company?
If they don't answer the question, or answers that they prefer employee A, or claims that the scenario is unrealistic because one developer can't be four times as productive as another, then I will probably not be a good company fit.