Northrop Grumman Sr. principal software engineer interview questions
Updated Feb 5, 2026Difficulty
Easy
Experience
Mixed
How others got an interview
- 50%Applied onlineApplied online
Interview search
6 interviews
Northrop Grumman interviews FAQs
- Sr. principal software engineer applicants have rated the interview process at Northrop Grumman with 2.2 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 50% positive. To compare, the company-average is 74.2% positive. This is according to Glassdoor user ratings.
- Candidates applying for Sr. principal software engineer roles take an average of 26 days to get hired, when considering 6 user submitted interviews for this role. To compare, the hiring process at Northrop Grumman overall takes an average of 32 days.
- Common stages of the interview process at Northrop Grumman as a Sr. principal software engineer according to 6 Glassdoor interviews include:
Group panel interview: 24%
Skills test: 24%
Phone interview: 18%
One on one interview: 12%
Presentation: 6%
Drug test: 6%
Background check: 6%
Personality test: 6%
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