MITRE Operations Research Engineer interview questions

3 interviews total. 1) Phone screening with recruiter. 2) Technical interview with two leads over teams, they each asked a technical question and detailed questions about my background. 3) Third interview on-site where I gave a 20 minute technical presentation in front of a panel, they asked a bunch of questions about the presentation and then behavioral questions, was 90 minutes total. I thought it went well and had no indication that it did not. Asked for feedback when rejected and did not receive any.