Interview itself wasn’t long, just a typical interview questions nothing weird. the waiting period was much longer after the interview and if you accept the job the amount of paperwork was massive.
Interview questions [1]
Question 1
Describe your past experience and why do you want to change job
I applied in-person. The process took 1 day. I interviewed at NIH (Bethesda, MD) in Jan 2015
Interview
I did not have a formal interview as I knew the PI before. But overall process for normal interviews depends on the PI. Some PI's may be pain, but the person I had (sort of) interview was very kind.