The funny thing is an artificial examination style setup totally freezes me up. I'm a valued contributor and write original technically non-trivial code day in and day out.
The last time I did an interview a few years ago my brain completely locked up. The interviewer was very polite, and it could have not have been any less stressful situation. Yet, somehow my brain knew I was in an interview, and it was time to lock up all that valuable technical information ... somewhere where my conscious mind could not access it.
Which is really weird. Usually at work the occasional unexpected stress put's my brain on turbo-charge, and ... it's so beautiful to experience it, everything has perfect clarity, I know what needs to be done and I just do it so much faster than regularly.
My "on-interview" brain is complete opposite of my "million-euros-are-at-a-risk" brain at work. I have no idea why.
Not if the fixed time period is 45 minutes with an interviewer looking over your shoulder.
Yes, and they're troubleshooted by people who are already intimately familiar with the systems they're troubleshooting. Nobody in the real world writes an app for a requirement they've never seen before from scratch in 45 minutes.
So you're asserting interviewees shouldn't already be familiar with simple problems like reversing a list? Come on, give me a break.
> Nobody in the real world writes an app for a requirement they've never seen before from scratch in 45 minutes.
Being asked to reverse a list in 15 minutes isn't even close to "writing an app from scratch". It's not even theoretical - just look at all the people who make it past these interviews. I doubt they would call it "writing an app from scratch". Could you try any harder to misrepresent things here?
Though it is clearly a simple problem, I've not had to reverse a list in any of the code I've written in the past 20 years. So I am not 'familiar' with the problem. I think I'd be able to solve it pretty quickly under normal work circumstances (even crises), but as many have said here already, working on something you've never done before with three strangers looking over your shoulder is a whole other dimension.
Many here and elsewhere have related the 'brain lockup' effect. Take me as another data point. It's real and it totally wrecks the interview for the interviewee and the interviewers, who lose out on a potentially good employee.
What's your point? You just want to repeat what everyone else has already said? And how low do you think the bar should be? What would be reasonable questions that actually still separate people who can code from people who can't, since reversing a list is too hard according to you?
> It's real and it totally wrecks the interview for the interviewee and the interviewers, who lose out on a potentially good employee.
Or they hire someone else who might actually be just as good or better. It's not like companies have an unlimited number of open positions.
I'm not saying anybody should lower any bars. Just don't immediately fail somebody who struggles with a simple problem. Don't just automatically declare them incompetent. Help the candidate be the best version of themselves. It's in your best interest as an employer. Try to figure out ways to make your interview atmosphere as realistic as possible. Some of these people who choke on trivial problems may have aced the same test on a better day.
It also isn't even close to "solving a real-world problem". Wow, look, I reversed this list and the conversion rate on our sign-up page went up 200%!
> Could you try any harder to misrepresent things here?
It looks to me like you are the one misrepresenting things.
It's not supposed to be the same thing. It's supposed to test your coding and problem solving abilities, in the limited time you have. What better alternative can you come up with? It's easy to just complain...
> It looks to me like you are the one misrepresenting things.
Hah, yeah right. If it makes you feel better, sure.
The second group universally cannot perform under production pressure.
Of course, you have a limited amount of time to interview people. Please let me know when you figure out how to give someone an infinite amount of time to answer questions during a 1 hour interview.
> The danger with this is that this is not a real world scenerio of how two people would approach a task or problem.
That doesn't mean it's not a reasonable way to test basic skills. It's even too easy to test that by itself. What good alternative do you have?
> All of us could be better at trying to understand people around us and accepting them for who they are instead of scrutinizing them for what they are not.
How exactly would you structure a 1 hour interview so that it's not, "scrutinizing them for what they are not"? Or are you just having fun being preachy here?
Here’s the thing though, you are “leaving money on the table” when your interview process deselects great programmers because of a mistaken belief that Test A is a good proxy for developer talent. When HN developers are telling that Test A is a bad proxy for developer competence, perhaps, just perhaps, you might consider trying to improve it with the advice given.
The upside of being able to accomodate developers who “lock up” in stressful interviews, is that you now have access to great developer that are (according to your competitors) “impossible to find”.
> you are “leaving money on the table” when your interview process deselects great programmers because of a mistaken belief that Test A is a good proxy for developer talent.
That's true for any non-perfect interview process at any job. The problem isn't that people don't know this, it's that it's hard to accurately measure who's good.
> you might consider trying to improve it with the advice given
Hah, as if the advice is something amazing! Which of these pieces of advice could we use that wouldn't make things worse in some way and also have a chance of being accepted by existing coworkers and managers? There's some great pie in the sky ideas, but nothing without serious issues.
> Pete Holiday, an Engineering Manager at CallRail in Atlanta, used to use homework as part of job interviews before realizing that he was ruling out good candidates. Some told him they didn’t have time for homework. Others may have never gotten to that point. “It’s way more inclusive to just have someone come to the office and talk to them,” Holiday said. “You’re not counting on them having time, or a computer at home. We have candidates with sick family member, single parents. Without the homework we can cast a wider net.”
So is homework worse than whiteboarding onsite? Who do we believe, some article or the crackpots here?
Think of ways you can de-stress the candidate while extracting useful information. Ideas:
1. Have them bring something they wrote with them and describe it in the interview. A lot of developers will “come out of their shell” when they start explaining something that they worked on.
2. Show them some code and have them explain it to you. I had a manager open a C book once and had me explain some code.
3. Pair program on a problem that the interviewer doesn’t know the answer to. This situation is a lot more like a true work situation.
That's what people do, or should be doing, along with the whiteboarding. I don't think anyone just has them do fizzbuzz and that's it, like you seem to be implying. That won't even fill an entire interview slot.
> it seems like it is much more enlightening to hear about how they organize a schedule...
Sure, and that's also something you ask about, but that doesn't weed out the people who can talk the talk but can't really program, who do exist.
> But even as I type this, I'm wondering if the ability to read people is why this so hard for software interviewers...or maybe it's for lack of that simple skill that our industry has resorted to silly proxies like fizz buzz, etc.
I think it's because people want real evidence of skill, which is pretty easy to detect via whiteboard in most cases, not just the interviewer's gut feeling.
It sounds to me that an assumption is being made because they didnt meet the expectations within a fixed time period. The danger with this is that this is not a real world scenerio of how two people would approach a task or problem. It’s also important to recognize that everyone is different with regards to how they process information. Stress has a real biological effect on how the brain processes information, and who doesnt feel stressed during an interview.
I’m somewhat autistic and struggle to process verbal information. But I try not to share that with people because I choose not to be labeled by it. It’s unfortunate that in our society that we have to conceal things like that.
All of us could be better at trying to understand people around us and accepting them for who they are instead of scrutinizing them for what they are not.