I work for Microsoft: I don't even use the same build tools, version control system, or issue tracking database as the people in the office next to mine. As of

I work for Microsoft: I don't even use the same build tools, version control system, or issue tracking database as the people in the office next to mine. As of a recent re-org, my next door neighbors and I report to the same manager. Even before the re-org, we developed complementary products which work towards the same set of goals. I have also worked for Google: Believe me, the pervasiveness of Google's infrastructure sharing is unique.