I applied through an employee referral. The process took 1 day. I interviewed at Catalyst (Dallas, TX) in May 2014
Interview
Very simple. I met with the founder of the company and his right hand man. We talked briefly about the role and my skill-set. It was very laid back and comfortable, somewhat unconventional. I received and offer right on the spot, which was nice. After the interview, I was invited for some beers at a bar which was fun.