Here's what he had to say about Google's engineering culture:
Google -- Diagnosis: Conservative. They began life as slightly liberal and have grown more conservative ever since. Google was only software-liberal in the very very early days, back when the search engine itself was written in Python. As they grew, they quickly acquired a software conservatism driven entirely by the engineers themselves. Manifestos were written about the dangers of using multiple languages, and strict style guides were put in place to severely limit "risky" or "hard to read" language features of the few languages they did allow. ... In internal surveys, Google engineers commonly cite bureaucracy, churn and complexity as core obstacles to feature advancement and rapid launches. Google has made serious attempts on several occasions to reduce this bureaucracy, but they always get pushback from -- surprise -- the engineers themselves, who have grown so staunchly conservative that they actively (and even more often, passively) resist the introduction of more flexible stacks and technologies. ...Having seen Google from the inside, I can say Steve nailed it. I had expected Google to be sort of an over-grown startup, a really intense place where you had to work extremely hard, but where you had a lot of freedom to do things however you wanted, as long as it worked. What I found was something quite different: a culture that was incredibly strict[1], top-down[2], and bureaucratic[3].
If Steve is right, what I expected to find at Google is actually found at Amazon and Facebook.
[1]: Check out the C++ style guide (click "Toggle all summaries" to see the document in its full form). Then consider that the code review culture routinely enforces all of it. I remember having check-ins rejected for spaces at the ends of lines, for example.
[2]: I still think I should have quit or transferred the day my lead rejected the fifth rewrite of a design document.
[3]: The most prominent manifestation of Google's bureaucratic nature is the "promo packet", an elaborate document used to apply for promotion. It is typically at least a dozen pages long, with a long series of testimonials by the applicant's bosses and peers singing his praises for the promotion committee. It's like going up for tenure or a partnership, but it's done for every step up, not just once in your career.
