I applied through college or university. The process took 3 weeks. I interviewed at MITRE (Burlington, MA) in Feb 2009
Interview
Started with a phone screen and then a brief 1 on 1 at my school's career office. Two weeks or so later I had an on site interview that consisted of 3 1 on 1 interviews with my potential supervisor and some others in the department. The interviews had the feel of being free form and didn't have many penetrating questions, mostly asking for details about previous job experiences and school, and also talking about the job. I then went to interview with the HR person and we discussed mostly company infrastructure type topics. It seemed like a nice company to work for, for the right person, but I didn't feel like the fit was right for me.
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.
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.