Northrop Grumman interview questions

Contacted for an interview about 4 weeks after applying online. Interview was over the phone with 3 NG employees: a manager and two engineers. The interview was very conversational and comfortable - just asking questions about my resume, previous projects/internship, etc. No technical questions really, just asking what technical skills I had and how I used them to solve various projects.

I applied for the job and got a call from the hiring manager directly. I was surprised that HR didnt call. A 30 minute phone interview happened in a few days time. The interviewer focussed on core java/j2ee based questions. There were some spring/hibernate questions as well which could be found online. I was called for an onsite interview in a few days and had similar technical round. The met the Program manager, who gave overview of the project and expectation. They also wanted other team members opinion and so I was asked to attend one more phone interview. This time the technical questions were more detailed and was at the level of syntax. Again, you can find these questions frequently asked in interviews and could be found online.