[nostrademons]

It was at the time I was there (2009-2014). There's another Googler above who says it's not like that anymore, which is possible, but these were things you needed to know across Search, GMail, YouTube, Plus, Docs, and Infrastructure while I was there.

[joshuamorton]

It entirely depends on what project you work on. When I interned, I had to deal with a lot of custom datastructures, but since I started full time, I haven't (although my next project might?)