How Uber's Hard-Charging Corporate Culture Left Employees Drained
&gt; In May 2015, an on-call engineer failed ... At the time, Uber had recently reached a valuation of $50 billion.<p>I find that astonishing.  Outside Silicon Valley, I think that it would be quite unusual to leave $50 billion of plant running overnight, but pinch pennies by not paying anyone to stay up and check the oil levels during the dog watches.