Uber

Uber attracts a wide range of backgrounds, with people who excel at what they do. The environment is genuinely fast-paced -- just look at how many cities we have launched in 2014. We hit 100 in April, then 200 at the end of this summer. In addition, we are genuinely making a real difference in the places we operate, connecting people with a reliable ride.

Definitely not a 9-5 job. You're expected to be (almost) always-on, so bring your A game!

You do get vacation and many weekends off, but in order to bring about the change we want, we work really hard to continue to make progress.

Also, we get a lot of (unfair) negative press about issues that we don't really have time to adequately address and correct. So, most people love us, but working here you have to be prepared to take criticism and Uber questions in your off time from friends and family, etc., and answer them in a diplomatic way but in a way that doesn't compromise our competitive advantages.

Keep up the pace and growth! We're in a unique position that only comes across several times in a decade to use tech to impact broader society. Let's make sure we don't squander this opportunity.