I applied online. I interviewed at Lockheed Martin (Huntsville, AL)
Interview
They really only went through STAR and went through my resume. Nothing too insane or complicated. Just look over what you wrong and be able to explain in reasonable detail on how you accomplished those tasks.
I applied online. The process took 2 weeks. I interviewed at Lockheed Martin (King of Prussia, PA) in Jan 2019
Interview
Went into the meetup with currently employees and other applicants and discussed work and life at LM. Next day you're given a 1-on-1 interview with managers that show interest in hiring you.
It was pretty hard. The interviewer looked thru my resume hard. We had some technical interviews and some algorithm questions. Overall, it was a very fun experience. The interview process could have been much more smoother, but it was okay.