I applied while I was still a senior BSEE student and I was a semester away from my graduation. I pre-interviewed via phone call inside my car at a parking lot. It was funny that an alarm went off from a car near where I parked. It interrupted my interview but the interviewer did not mind about it and just laughed and said he understands the struggle of finding a peaceful place for interview on campus. LOL! The pre-interview went well and I received an invitation for the final round of interview in Warrendale, PA. During the final interview, I had to do a presentation in front of 3-4 managers. I used the opportunity to present what i have accomplished so far from my senior design project even though it is not complete yet. They seemed to like the idea that i found alternative ways to come up with new solutions when my previous solutions failed after I shared my struggles from my senior design project. After the presentation, I had the typically one-on-one interviews with the managers. The interviews were straightforward and not as technical as i would expect. I was still a student at the time so i understood that they wouldn't expect me to answer technical questions related to their respective departments. I was really prepared for the behavioral and situational questions. I gained advantage by using technical/project references when i answered their questions. FYI: This is from Dec 2015 so I cannot guarantee if the process is still the same.

Applied on their website after a career fair. Had a brief phone screening shortly thereafter. Then, had an interview at the university that lasted an hour. Finally, brought to their headquarters with other college graduates for a full day of 2 hour-long interviews, a tour, lunch, and a 10 minute presentation.