There are three rounds in interview process one HR and two technical round. Both are not too difficult. Very organized interview process and took approximately about 3 hours to complete.

First met OSI representatives at our universities career fair. Had a 1:1 interview on campus the next day which led to scheduling a date where I could travel out to interview at the headquarters. I ended up driving down with two other students and we spent the night after the long drive (8hrs) in a hotel courtesy of OSI. The next day the interview began at 8 in the morning and consisted of meeting with about 5 different people, having interviews with each of them, lunch on site, a tour of the headquarters and finally a skills / IQ / personality test. All in all the on-site portion took about 6 hours. About 3 weeks after my visit I got a call notifying me of the job offer.