There was a phone screening and then an invitation to interview onsite. The onsite interview is called Fantastic Friday and there are three sessions, so it is pretty competitive. It is very important that you are willing to travel and will commit to working for the company for 5-7 years. The first two years are training in Des Plains, IL and the remaining 5 years are spent traveling to sites. Two 30 minute interviews with two engineers each or one HR person. Asked behavioral questions.