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Dark Motives and Elective Use of Brainteaser Interview Questions

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Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#81

So, there's a hidden value to these sorts of questions, but it is useful to the interviewee, not the interviewer. If they use lots of these questions, you probably don't want to work there, or at least not for the person who's asking those questions.

I disagree, as long as getting the right answer isn't important. I flat out tell people I don't care if they get the right answer, that I just want to hear their thought process. Such questions used in this way are extremely valuable.

I think a good compromise is to modify the questions so it's actually applicable to the context of the job.

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#82
post #75

Earlier quoted context omitted.

People that don't get the offer tend to complain about such things. They are asking questions to measure how you think, to measure your potential, to see how you handle stress. If you are stressing over an interview, what will you do when you lose $1 million in 10 seconds?

I think it's more about measuring enthusiasm for problem solving. If you sulk and roll your eyes at a difficult math problem, what will your demeanor be like every day in the office when your job involves quant analysis?

I'm suspicious of any practice whose proponents offer multiple, incompatible rationales.

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#83
post #42

My issue is more with tricky algorithmic questions. I faced these tricky interview questions, where you either have to know the trick beforehand or there is NO way you can come up with a solution in an interview. I never understand the point of these questions. Because these esoteric hypothetical questions will almost never come up in real-life. They don't test someone's skills, because these problems don't follow an…

Most algorithms questions only prove one thing: whether a candidate has brushed up on algorithms beforehand. That has some usefulness, being a proxy measure for conscientiousness, but offers little beyond that. Maybe that they’re able to follow the reasoning, but it could just as easily be learned by rote and parroted back. The fact is that no one comes up with a from-scratch efficient algorithm for doing anything in…

I've been a cpp and java programmer for 12 years and not once needed to use algorithmic complexity on the job. The fact that so many places focus on this baffles me. Big-O questions should be reserved for system architect positions only. Out of all the arbitrary topics, I think they should focus on pedantic syntax questions for whatever language they use. Show snippets of code and ask "what's wrong with this picture?". That would at least select for people with better language mastery and, in theory, faster development times.

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#84
post #27

So, there's a hidden value to these sorts of questions, but it is useful to the interviewee, not the interviewer. If they use lots of these questions, you probably don't want to work there, or at least not for the person who's asking those questions.

I’ve been toying with the idea of stopping these sorts of interviews in the middle, but I’m not sure how to phrase it constructively. I want to suggest that while they may learn more about me if we continue, if I don’t learn more about them then I don’t want to work here. And they will learn more about me by letting me ask my questions. Long ago nobody knew how to interview. If you derailed it in the middle to talk a…

I sympathize with the temptation, but I try to keep a good attitude towards the interviewer(s) until it's over, and draw conclusions afterwards. My comment above might suggest otherwise, but in reality I mostly analyze later, after I've left.

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#85

Earlier quoted context omitted.

Would you say the questions that fund asked you are relevant to the work you do (or would be doing) there? I think that's the core criticism most people levy against the "high tech" interview questions.

People that don't get the offer tend to complain about such things. They are asking questions to measure how you think, to measure your potential, to see how you handle stress. If you are stressing over an interview, what will you do when you lose $1 million in 10 seconds?

If you are stressing over an interview, what will you do when you lose $1 million in 10 seconds?

Beats me - but the "skills" demonstrated in the interview process you're defending -- "suck up; just keep going online until you memorize enough canned answers to most of these dang questions; suck up, suck up, suck up" -- certainly aren't going to help.

If anything, they're basically orthogonal to the set of competencies needed to deal with that kind of a situation.

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#86

I took an interview today and was asked a simple problem which I immediately answered with linear time complexity. The interviewer then went on to say "no I'm looking for a specific answer which involves a trick". Literally said those words. Eventually figured it out but I came away with a bad impression of the company. Not the kind of stuff I judge people on.

"Well, you're not hiring a trickster."

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#87

So, there's a hidden value to these sorts of questions, but it is useful to the interviewee, not the interviewer. If they use lots of these questions, you probably don't want to work there, or at least not for the person who's asking those questions.

I don't think your second sentence is a good conclusion to draw. If nothing else, it's very difficult to find companies which will offer the highest compensation packages (or better) without also asking these questions. You're going to come across these questions no matter which of FAANG you apply to; the same applies to hedge funds. We're not talking about tens of thousands here, either. The top companies have packa…

But your experience, combined with the article in question, would suggest that "narcissism", "sadism", and "callousness" would be rampant at FAANG and hedge funds; surely that can't be right. Or...?

I would not actually use this one criterion to disqualify a prospective employer, but for the record I would gladly give up a good chunk of my salary to work for one without those traits. It's not like you would have to work for pennies. In Austin, anyway, I have held contracts at a dozen different employers and not one used these kinds of questions in the interview.

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#88
post #40

Earlier quoted context omitted.

Get population estimate for all countries with adword revenue, get adword revenue for each of these countries, fit to a linear model, predict italy. Or calculate adword revenue per capita and apply.

No, you had to give out a number.

How about $5B with a 99% confidence interval between $0 and $1 trillion. That's a number.

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#89
post #5

The single most effective interview question I ask: "What do you want to do?". I drill down on that to a granulator level as I try to make sure the tasks, duties and overall position matches what the candidate really wants for themselves. Its followed-up with a "How would you do it?", again persisting in the discussion (not interrogation) until we both are comfortable with the sensibility and symmetry of the answers.

Wow, I'm sorry but I think that's terrible for the candidate. You have a job description and you shared that with them. You're basically hiring the most talented bullshitter. Very few people will know exactly what they want to do in the next few years. There is only what you as the employer need to get done and what they as an employee are willing and able to do.

Its only bulshitting if people don't want to work there. Presumably they read the description and said "that looks cool, I want to do that".

You should be able to look your employer in the eye and honestly say what you want from the job and discuss it like adults. Not dance around with a corporate-speak ritual telling them what you think they want to hear.

Re: Dark Motives and Elective Use of Brainteaser Interview Questions

#90
post #3

interesting that “teasers” are viewed as callous and abusive and yet analytical problem solving is viewed as predictive. fine line.

A brain teaser usually has nothing to do with the work... What would asking about the shape of manhole covers have to do with OOP?

The estimation question has real-world uses from figuring out market size to even large project effort estimation. Interviewer is looking to see if the candidate can break part a hard problem into smaller solvable sizes. A famous example is when Fermi estimated the size of atomic explosion by dropping pieces of paper during the blast.

https://www.quora.com/How-did-Fermi-estimate-the-power-of-th...

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