BAE Systems USA interview questions

I was recruited on college campus. Had my first interview with HR on college campus after which I was given a date to go into the company for second round. On the day of interview there were 9 other candidates. HR brought us into a big conference room and presented a slide show of the company after which they gave us a tour of the building. After lunch, HR sent me on a 1:1 interview with an engineer. He asked questions on my resume, my experience, and why I wanted to work in this role. Then I was sent for a 1:1 interview with a software engineer. He asked more in depth question about my projects while in school and couple C++ question on inheritance, polymorphism, OOAD. I then showed him my portfolio some of the work I've done in college in which he was happy to see and we talked about that for a while. Afterward, I was asked to go meet the HR person. She told me my interview went very well and asked me about a start date. I was very happy at this point and told her I'm willing to start asap. She then told me I have one last interview with an engineer in the team I will be working with. At that point it was already 4pm. He told me about the project he is working on and some of the technologies they used on this project. He asked me about my experience with these technologies and some basic question on my resume. A couple of days later, I got an offer from HR. Overall the interview was fairly easy but it is sure a long one. Not much technical question asked. A little tip would be to create a portfolio of some of the work you've done in college or at work. Interviewers like to see that you've really done what is said on your resume and will direct their attention to ask questions about your work. Good luck!