An Inside View From a Google Employee

http://blog.outer-court.com/archive/2006-06-15-n22.html

ZorbaTHut says that Google is mostly C++, Java, and Python (or so he’s been told).
“We’ve got extensive automated unit tests, all of which (obviously) must pass.”
Zorba writes that he has only about one meeting per month.
“The company’s structure, at least for engineers, is amazingly flat.”
Zorba says the Google hierarchy is just five levels: Programmer - Tech lead - Manager - 
Department lead - Larry/Sergey/Eric. Google just assumes their workers are competent, 
Zorba adds.
“[M]ost people are Linux-only”
Zorba says that in his opinion, C++ is the best single programming language out 
there. He says however that it also doesn’t protect you from shooting yourself in the foot.
On how Google goes about staffing a Test Engineer position, Zorba replies: “I don’t know 
what other teams are like, but on my team everyone owns their own tests and handles 
their own quality.”