Yeah, these are called technical interviews, and they usually take an entire day. I spend at least a two weeks studying for these before every job search.

If I have 4 jobs in my pipeline that assign me 4 hours of homework each, that's 16 hours of bullshit I have to slog through in addition to my study time, prep work, and a solid week or two of whiteboarding. This doesn't include the recruiter's technical trivia screen and the codeshare screen. No thanks.

If no thanks then why complain about 4 hours each? You are going to pick and choose the interviews you are going to do so what exactly is the problem if you say no any or all of them?

> Ask HN: Having trouble getting senior applicants, wondering what to do about it