I applied through the site and was contacted by HR to schedule a technical Interview. After giving some dates that worked, she got back to me a week and a half later and the date no longer worked. I promptly responded saying something had come up ( I had a FB interview an hour after) and gave some more available dates. I guess she never told the engineer because I got a phone call an hour before my other interview and was completely caught off guard. I decided to take the hit and completed the interview. It was not hard, but it would have been easier if I had some time to prep for it. All in all, it was very unorganized and I did not seem like a place I wanted to work.