Software Engineer (Swe II) applicants have rated the interview process at Northrop Grumman with 2 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 100% positive. To compare, the company-average is 74.2% positive. This is according to Glassdoor user ratings.
Here are the most commonly searched roles for interview reports -
Very easy mostly behavioral interviews. Explain your experience. Ask one or two technical questions they felt was relevant. Not much else to include but good luck! It’s a great company that takes care of their people.