I applied through an employee referral. The process took 3 weeks. I interviewed at MITRE (Aberdeen, MD) in Nov 2015
Interview
The process started with several phone interviews a week apart followed by a final four hour Skype interview with various different project leads to determine where I would end up.
I applied through an employee referral. I interviewed at MITRE (McLean, VA) in Sep 2018
Interview
Panel discussion with four interviewers, plus a discussion with Human Resources rep to cover benefits. Interview was hosted on site (pre-Covid). I interviewed with two different groups and the entire process took about four hours. I was required to present a brief on technical work for one group, but not the other. Clearly there are different interview styles across divisions.
Interview questions [1]
Question 1
Most of the questions were techincal, but some beahvioral question like "Given some situation with the sponsor how would you handle it?"
I applied online. The process took 4 weeks. I interviewed at MITRE
Interview
A few phone interviews followed by an in-person interview. The in-person interview consisted of 6 30-minute interviews with different people. If you made it this far, they like you and respect your technical ability, so the interview is low-stress.