I committed the all-time faux pas this morning in an interview.
In my defense, the interviewer called one-half hour ahead of scheduled. And I was just sitting down to get my head into it. But, it was set up long enough ago that I was having a hard time remembering the entire context of the interview (and have had numerous dealings with the same recruiter), so I was befuddled at first. So many jobs, so many companies, so many refusals (hehehe). Yesterday afternoon alone, I was better than two hours getting grilled in interviews at a local company.
It's a capital offense not to have researched the product whose development team you are interviewing for. Duh. [Many expletives deleted.] How stupid is that?
So, yeah, I actually knew a lot more than just nothing about it. Checking out what I should have done prior to the interview, I realized that I knew quite a bit at the 64,000-foot level, but I was surprised and inarticulate—a state that I find myself in frequently during interviews. (I guess I'm not getting the hang of this job-seeking thing after all.)
In fact, I could have held my own, but I'm so $*#!! honest that I rush to admit incompetence.
Moral of this sad story: Admit nothing because stupidity might not become apparent in the ensuing interview. And if it does, how is that worse than not having admitted to it in the first place?
Better lesson of this story: As the weeks wear on and the interviews and rejections begin to blur into one giant disappointment, apply due diligence for each since one or two of them in there will be the offer you accept.
On the positive side, the interviewer suggested that I speak with additional engineers on his team. So maybe he correctly perceived that deeper in the awkward cluelessness, there is something useful.