I applied through an employee referral. The process took 3 weeks. I interviewed at Gusto (San Francisco, CA) in Nov 2015
Interview
I really respect the interview process at Gusto. It's challenging but also super fun! It starts with a phone interview, then an assignment that you must complete within a few days, and if all goes well, an in person interview with members from the team. Everyone is very down to earth and makes you feel right at home during the interview. Such a great company!