I applied via referral and was quickly offered an interview. The interview was 1 hour and focused on resume and STAR questions with no technical questions. The recruiters were very nice and answered all of my questions.

I applied, and then I had a 1 long interview with 2 people, behavioral questions and one technical question. Interview was about 2 hours. First they went over what they do, a presentation of what GM does then they asked me behavorial questions and finally a small technical question. Got the offer the next day.