I came into Google through an acquire, and one where the usual interview process was waived. They needed us to continue working on the thing we worked on, and they went through our job histories and talked to our mgmt and slotted us where we would fit and for people that didn't "fit" they were mostly given 1-2 year contracts instead.
And while I lasted there 10 years after that, it really didn't do me any favours. Going through the process and succeeding would have been far better for me. A lot of people around me at Google had imposter syndrome, but I was an actual imposter; didn't do the interview, and didn't have a CS degree. Made worse by the fact that I was a site (Waterloo) where the vast majority of people -- including all the mgmt and site leads -- went through the rather rigorous program at U Waterloo, and were damn proud of it, and so ...
Just sayin', this is not a path I'd recommend. Google in particular is kind of run like a big university. Complete with their own equivalents of thesis committees (promo/calibration etc. etc.), an obsession with publish-or-perish, and campus cafeterias (and even equivalent of dorms). And their interview process is highly highly biased towards recent college grads who studied hard and recently in their algorithms and datastructures classes and are ready to whiteboard that up with confidence... It's a shared culture, with a high degree of conformity (that most of the people there wouldn't see/admit-to because of their conformance.)
I'm glad to hear Apple doesn't fit that mould entirely? Myself, at Google... if the money hadn't been so far beyond what I could get elsewhere, I would have walked after 6 months to a year.