There is absolutely no mentorship here--which is a shame. Managers are not there to help you learn/grow. The on-boarding process was very basic, essentially they just throw you into the fire and expect that you'll know what is going on. Due to the nature of start-ups, job security is always on the line--so don't leave a good, stable job for this place. Additionally, little diversity (especially in senior management) and people are a bit cliquey.