The advice that I got was to join mid size startup (Think of google 2004, FB 2007, or uber/ airbnb/ dropbox right now). The company has been mostly de-risked, a

The advice that I got was to join mid size startup (Think of google 2004, FB 2007, or uber/ airbnb/ dropbox right now). The company has been mostly de-risked, and there is still newer parts of the organization where you get to do interesting things.