> none of those organizations ever trained me at anything at all

They trained us repeatedly not to bribe foreign government officials, even though I had zero access to anybody like that. There was also some mandatory training against harassing coworkers. I.e. "protect the company from lawsuits" training, not "here are some ideas for how to do your job more effectively" training. They were megacorps, too.

In my case? Two days I think (it was long ago). Two very eye-opening days.

> While I agree, how much training does anyone get as an interviewer?

TL;DR: not enough training.

As a hiring manager, whenever we start a hiring period I have a conversation with my interviewer team about what qualities we're looking for and review the questions they plan to ask in order to normalize the process. Stuff like "what does a good answer look like, and why? what does a bad answer look like? is this something easy for a candidate to engage with or will you spend half the interview just explaining the background? is this coding question unreasonably hard?" and so on.

I also look at the evaluations that interviewers give relative to other interviewers. Almost every hiring cycle I've done I've had to deal with some interviewer (all over the seniority spectrum) asking unreasonably hard questions.

Yeah, I had no training on being an interviewer before I started doing interviews. My manager gave me some tips, and I came up with two security bug-hunt exercises (was hiring AppSec engineers), but that was it.

Now, I wonder if I had rejected earlier candidates that I would have passed if I was a better interviewer.

Quite a bit based on the number of interviews performed at software companies. Being on either side of the fence gives you experience.

That's unusual. Maybe that's a US thing? In Europe anywhere I've had to interview people I've received at least a couple of hours of training and then usually sat in as the shadow on at least one interview.

Quality varies, but I think it's only the super small outfits where I've been expected to just wing it.

Same here. I receive a training budget at some places but it goes unspent. Everything is self directed learning in my own time.

Seriously? I worked at startups and research institutions. We trained people on interviews. I know Google used to invest quite a bit on interview training.

Sounds common to have training in big tech but I never received any training either. Sometimes we’d discuss changes we wanted to make to the interview process, which suppose could be considered adjacent to training.