After a phone screen, they called a group of us to the downtown corporate office to an all-day round of interviews, part of which was group activities and part of which was one-on-one interviews with various staff members. We also had to bring a presentation to answer a technical question they sent us by e-mail a couple of days earlier. While others I know had a great experience here, this was the worst interview I have experienced in my life. One of my interviewers was clearly browsing the internet or reading his e-mail while I was answering his questions and he looked like he was trying not to laugh for about half of our time together. Although it's possible I was unqualified, I don't think it was something I said which was so hilarious. Furthermore, another office worker strolled over to us in the middle of our interview (which was in an open space) and started speaking to my interviewer about mundane stuff ("hey, what's up dude?") while I was answering a question. My interviewer actually engaged him for at least a minute before turning back to me, at which point he seemingly forgot I hadn't actually answered his previous question before moving on. Though this wasn't how the entire interview went, this one interviewer's behavior was mind-blowingly unprofessional to me and I can't bring myself to consider them again, despite their interest in trying again next year.