On many Northrop roles, two things are screened before your resume clears for controlled work: US citizenship, which Northrop says is required in most cases, and the ability to obtain and maintain a security clearance, plus ITAR eligibility. Northrop sponsors the clearance; the federal government grants it, adjudicated based on federal law, not state law, which is why a state-legal substance can still be disqualifying.
A clearance is typically transferable for a two-year period from the date of debrief, so if you hold one, tell your talent acquisition representative and put it in your resume header. Northrop also notes your digital footprint may be considered during the background investigation.
Confidential
The lowest DoD clearance level. It is the least common requirement on Northrop engineering roles, which more often start at Secret.
Secret
The most common baseline on Northrop defense roles, a Tier 3 investigation. A new investigation commonly runs about 1 to 6 months, and an interim Secret can be granted in roughly 5 to 10 days on a clean SF-86.
Top Secret
A deeper Tier 5 single-scope background investigation for more sensitive national-security programs. Expect a longer timeline than a Secret.
TS/SCI (with SCI or SAP access)
Top Secret plus Sensitive Compartmented Information or Special Access Program access, granted by an agency and commonly taking about 6 to 18 months. Some roles add a counterintelligence or full-scope polygraph, mainly on Space and special-programs work.
Clearance-processing times are typical published ranges and vary by case; an interim determination is faster than final adjudication, and an existing in-scope DoD clearance may transfer. Northrop does not publish which tier maps to which role, so these describe the tiers, not a role-to-tier mapping.