There was a short video call with a hiring manager. They were very friendly, mostly walked through your resume, asked you some behavioral based questions, and asked about you (hobbies, school, etc).
Not difficult. Interviewers that have already selected you just want to see your dedication in extracurriculars and your general confidence/demeanor during and interview. I definitely felt nervous since it was my first interview but it wasn't terrible. I just talked about my resume.
Amazing process, smooth and recruiter scheduled them very well. Definitely have your resume known inside and out. The technicals were medium difficulty, Be as well spoken as you can, iterate your points clearly.
I interviewed at Northrop Grumman (Salt Lake City, UT)
Interview
Very quick and easy. Applied online their website. was forwarded there from linked in. Very nice. Delt directly with my manager during the hiring prosses then got transferred to a recruiter for my offer