He clearly states they don't care about profit: "At this point in the company’s evolution, I don’t see a huge need for the company to be throwing off a huge amount of profit. What’s the point? [...] If you prematurely optimize, you might get a bigger piece of a smaller thing."
On the other hand, they already have 400 million users, which is about 20% of the entire internet population in the whole world[1]. Part of me is thinking what exactly are they waiting for? Something tells me even if they were at 100% internet population, they would still be making meager profits and have an underwhelming IPO. But then again I'm a glass half empty kind of guy when it comes to Facebook.
No matter. It is still a good number to play with on their P&L statement. All they need to do is soundly (or incrementally) adjust their outgoing numbers then the profit will definitely increase.
Given the 23.6 bn is probably low for 2010, and 10,000 engineers is probably a bit high, the resulting value of 2.36 million is a lowball estimate. The real number is probably closer to, oh, say, $2,750,000 / engineer :D
All employees are not developers, however. There are apparently 1400+ employees (http://www.facebook.com/press/info.php?factsheet), so that would make 1.1B / 1400 = $786k per employee of revenue.
