Given a 'homework' tasks on a job interview?

Question

Recently I went to some interviews and on many I've had the 'some small projects' to do for homework. Usually in the small companies I see this as a practice.

It is not such a problem, but I've collected several projects and when I ask for a feedback it appears that the task grows with some extra requirements that are really time-consuming. Moreover I see the employers are not willing to help or to evaluate it with care. Should this be a red flag for the interview or the company?

Edit: Thank you for all your responses. You covered almost all the aspects of my question. As a conclusion I think the only task for homework that worth doing it is:

• when the company is decent enough and you want to work there eagerly

• the task is not supposed to take more than one day to complete

In the other cases I would apply somewhere else.

Answer 1

As an interviewer, I face a number of challenges. If I just ask you about coding, I can rule out people who really don't know what they're talking about, but I might accidentally hire someone who "talks a good game" but writes horrible code - hard to read, insecure, bug-ridden, inefficient - or who is very slow, or who is rude to co-workers, or much more. So I ask you questions that aren't just about code, in the hopes I can learn enough about you to avoid a bad hire, but that isn't always enough either.

Some companies set coding problems in the interview, either on a whiteboard or at a computer. These are really expensive for the company because they add 30 or 60 minutes to the interview in many cases. A good programmer might do a bad job at these (so we recommend practicing for them) and a bad interviewer might misinterpret what happens during them.

As a result some companies think they will save money and time by giving you a sort of "take home test". They don't typically ask you to write something they want to sell, it's a way to see what you can do. Often it's a problem that was solved already so they can compare your solution to someone else's. There's still the risk that someone might help you do it, or you might spend far longer on it than you say, but they see it as a cheaper way to screen people. If you want the job, you'll invest the time in being screened, and if it's not worth it to do that, just decline the opportunity. This happens in other industries: cooks are sometimes asked to work unpaid in the kitchen for a day so their speed and technique can be evaluated, artists are asked to bring a portfolio which often includes works they created without being paid to do so, performers must audition - give an unpaid performance - and often spend time learning music, lines, or steps in order to do so, and so on.

I have heard people suggest that somehow they are not so much interviewing as doing free project work. That companies are asking for a day or two of work, then when it's submitted asking for another day or two of work, all while dangling a job offer in front of them. If this is happening to you, one of two situations exist:

• you need a day or two for something that the ideal candidate would need only an hour to do, and they are screening hard to make sure they get that candidate
• you are misunderstanding what they ask of you and doing much more than they wanted, so that either you or they have huge communication shortfalls
• they are exploiting job applicants to get their web site built or some other small task done cheaply

The good news is, it doesn't matter which of these are true - you just don't want to continue applying for this job. You don't want to work for the place whose web site was glued together from samples provided by applicants of varying quality, or who doesn't mind exploiting vulnerable or desperate people, you don't want to work with a company that cannot explain its needs to you, and you won't get to work at the place where you need to be much faster or better than you are now. So thank them and decline to go further into the process.

Answer 2

I've never liked project-based interviews. I've done several and I have several public ones on my GitHub. Very rarely do they ever consider my previous work. Nowadays, it seems everyone wants to give their own test. However, not all employers respond to them. In the field of Android development, these apps take many hours. I've done some apps that took me five hours to do and was rejected without any feedback. Especially troubling are the companies that give them out without even having a phone conversation with them first. Who knows if that company is interested in them? You could work for hours for nothing.

So, no I don't do project-based interviews for people who I haven't talked to yet and ones that are seemingly long.

Answer 3

A homework exam is good news.

If you are given a homework assignment that you actually do correctly, you are almost certain to get the job. Very few employers will interview you, decide you are good enough to do the take-home, see that you did very well on it, and not hire you.

Almost every homework assignment I have been given has lead to a job offer. Moreover, you should enjoy doing them... if you don't, why are you applying for this particular job?

I don't find this exploitative. Most of the time, employers will give you a sample test that has no relevance to their business. And even if they were open to having unwitting applicants do their own work as part of an interview, would you really trust someone you've only just met, whose competence is still in question, with your business?

Answer 4

I've had to deal with this. One measure I've had to use is to make sure that whatever the 'homework' is, it has to be something generic. If it's specific enough for the company to actually benefit from (as in -- take your work and make a buck from it without hiring you), that's a red flag.

There'd be nothing wrong with sharing your proximate approach to dealing with a challenge they present to do. But when it comes down to nuts-and-bolts details, remember that the whole reason that you showed up in the first place is so that you can get paid for your expertise.

The tact some companies take would be like you taking your car into the local mechanic and having them do an exam before you agree to pay for them to fix the car. It's stupid.

Answer 5

Some homework assignments could be seen as a red flag, others not. It all depends on the type of assignment and how it is framed.

I give a homework assignment to all developer candidates who pass through the phone screen (the phone screen is with me, after carefully scrutinizing your resume and anything else I can find about you, and it's 30-40 minutes of 3 - 5 general questions about methodology, preferences, and general development practices), and that homework assignment was written by the entire development team to represent what they want to test in a candidate. Because the homework assignment will take a person a few hours to perform, and takes each member of our team an hour or so to assess, we only give the assignment to candidates who we think have the opportunity to do well on it. We don't want to waste anyone's time, ours included.

If the homework problem you are given is one that you think will take you 10 hours to complete, you can ask the company how long they think it will take to complete. If they say "10 hours" then pat yourself on the back for estimating correctly, but then wonder why they're giving you a 10 hour test -- is it work they want done and are using homework problems to get work for free? Are they just really rigorous, and this homework assignment is much like the 8 hour/all-day interviews higher level candidates in management, architecture, etc perform (I've done these a lot, for many different senior roles)?

In other words, some companies will use the homework assignment poorly, some not. It's a judgement call on whether it raises a red flag for you, but remember that it is quite common to put in some amount of time to prepare for and then execute on an interview process. In companies where I have been a hiring manager, a developer candidate could expect probably 5 hours of total interview time in three stages over a couple weeks, and a homework problem that might take another 2 to 3 hours. That's 8 hours of effort for a $100K/year job, which seems pretty reasonable to me (which is why I continue to do it).

For me and my teams, how you perform on the homework problem leads directly to what the team will talk about in their couple hours of interview -- why did you select the gems or libraries you did, what was your testing approach, what did you or did you not document in your work and why, and so on. You could always ask the company who gives the assignment to you how they plan to use it, so you can better understand the context. If they don't give you a good answer, like "we'll use this as an evaluation of basic skills in xyz, and use it as the foundation of discussion in your second round of interviews," then that could be a red flag.

Answer 6

This is a sign of trouble ahead.

The companies which are doing this are testing you to see how willing you are to use your personal time for their projects. A person who states that they are uncertain about or unwilling to do so will almost certainly be removed from their potential list of candidates.

It's also rather legally tricky for the company, as if they assign you a task and you accidentally develop something which they later attempt to sell, since you are neither a contractor nor an employee, they could owe you compensation for your efforts

Also this could cause practical problems for them if you far exceed their expectations (and they may this apparent), this may change the compensation rates you are seeking to levels beyond what they are willing to pay for the position.

It would advisable to make certain exactly what they are seeking when they ask you to take a project before you accept this and what assistance (if any) that they will provide to perform this task. If they balk at this or they make it clear that you are expected to work for an extended period without compensation, then it's probably best to politely decline to do this.

Frankly, unless the companies are "industry leaders" or what they are doing is cutting edge, it might be advisable to continue to look for a company which respects your work/life balance.

Answer 7

Few times I have received quite serious "mini projects" to do that took me almost all day to complete. These projects produced small applications that are directly useful as utilities or library functions. The produced code worked well, and I used to be deeply surprised when the companies refused the next round without much explaining.

Could it be an easy way to get a free day of attention from the professional? You need a task to be done, you post a job proposal for a job you never think to offer, you put the high salary proposal and send a "small home assignment" for every applicant. Then all you need to do is to pick between even multiple versions of the code that does that you need, maybe some really ugly but others may actually be really good, various people are looking for a job. That a great idea to grow your business productivity!