[yongjik]

Maybe Google hires firmware developers, but I think they don't hire iOS developers. They hire "software engineers", and throw problems at them. (Or rather, these generic software engineers migrate toward problems that interest them in the long run.)

It prevents Google from having, say, more "iOS developers" than they need when they decide to concentrate on other products. We may debate the merit of this strategy, but as long as Google keeps this strategy, it makes sense to hire engineers who are willing to say "Well I haven't touched bits for a decade but let's see what we can do with them."

[cableshaft]

This isn't really disagreeing with you, but I was contacted by them specifically for my iOS development experience. They have several iOS apps, and they do have a demand for that type of work.

However, everything I was tested on was general SWE data and algorithmic questions. I never once got asked about anything iOS related at all. I remember one was a Google Voice question specifically, and another was a really strange converting 3D to 2D graphics conversion algorithm question that I'm still not quite sure how to tackle, and another was like reversing the bits in an image, I think, and I don't really remember the others anymore.

Also, if you go in for iOS, do not whiteboard in Objective-C or you will have a really bad time. I kept running out of space on the whiteboard because of its ridiculously long method names.

Simple example:

Objective-C: NSString *items = [[[NSArray alloc] initWithObjects:@"1",@"2",nil] componentsJoinedByString:@","];

Python: items = ",".join(["1","2"])

98 symbols vs 27 symbols. Over 3x as long.

[rubicon33]

I've never chosen to interview with Google but I have been approached by Google recruiters on multiple occasions for iOS development. To say that they don't have a need for iOS engineers, is clearly erroneous. Google has a number of iOS apps.

Just to name a few: YouTube. Gmail. Hangouts. Calendar.

Regarding your interview experience - This is precisely why I turn down every interview request from Google. If you're contacting me about iOS dev experience, question me about that domain. I find the algorithm / data structures questions to be fitting for an entry level hire, fresh out of college.

[anindha]

There is always going to a problem that you haven't done before or haven't done for a long time.

If I was the interviewer and someone was honest about not knowing about biwise operatoons but was able to ask the right questions to gain some understanding I'd be impressed.