The interview process took about 3 weeks total. It begins with a written interview, then a phone screen, followed by an in person interview (mine was a group interview, but I'm not sure how often they do those now). The written portion was pretty simple. Mine was explaining how to make scrambled eggs to someone over email and answering what my customer service philosophy. The phone portion was also pretty basic. I again was asked my customer service philosophy and then role played a phone call. That role play was easy, we went over the details before hand so even if you have no idea what Square does, the answers are given to you. It's less about answering correctly than how you sound on the phone. Lastly I had a group interview, which I don't think they do as often anymore. Mine was in January 2016 so things have changed since then. My group was about 30 people who were broken up into groups of 5-6. From there 5 different leads rotated in asking pretty basic interview questions (Tell us about a time you faced challenges with a coworker, tell us about a time you solved a difficult problem, ect.). After the group interview, I think it was about 5-7 days before I heard back that I got the job.