It was a good experience: 2 rounds of interview - first was with the hiring manager, and the second was with a panel. The first was pretty straightforward. This was an Electro-Optical/Infrared Systems role, so C++ knowledge was required (types, data structures, memory - stack vs. heap, object-oriented programming - pure vs. virtual functions).Also, some networking questions, like when to use TCP vs. UDP. The second round was pretty cool as well.I was interviewed by 5 managers/team leads.It was mainly behavioral, with one instance where I was asked to explain a snippet of C++ code and identify a runtime error.My experience with the interviewer was great. The only negative was how long the whole process took.It took about 4 months. The interview was 2 months after I applied, and the actual interview process took about 2 or 3 weeks.I was told I would hear back in a week, but I didn't hear anything.I had to reach back to the recruiter on two separate occasions. The first time,,, she said I should hear back in a month; I didn't hear back, so I emailed again, and they went with someone more suited for the role - I didn't have a defense background.