It was an all day thing. There were 8-10 different interviews. The questions were difficult, technical. Very intensive on use of problem solving techniques. Some not too friendly, others were friendly. The hardest interviews of my career. Did end up getting the job but offer was not timely. They did pay for the move.

Contacted by HR first, then spoke to the hiring manager for a phone interview. After about one month, I was brought in for an on-site panel interview that took about 6 hours. Each panel interview was with two people for one hour. They mostly asked technical and behavioral questions. Interviews seemed pretty long and in-depth for an early career position. HR was extremely unprofessional and completely ghosted me after the on-site interview. All of my phone calls were completely ignored. I can take the hint, but it makes your organization look pretty disorganized.