An HR/Recruiting representative reached out to me to sign up for a time slot for an initial phone screen. I then advanced to the coding interview portion of the hiring process. In both cases, my interviewers were kind and courteous, and the automated scheduling system that Square uses was very good at reminding me about upcoming interviews.

One of the main things I appreciated about the Square interview was that, during the coding portion, there was another human being on the other end of the shared code pad. I have taken several coding interviews through automated systems that I don't like as much because I can't ask questions or talk through strategy.

I don't remember the exact question at this point, but it was a 2D array manipulation question that dealt with finding an optimal path. There were also questions about previous work experience and general coding knowledge.