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    Cleared jobs at Castellum Inc.

    22 active postings that name a security clearance or Public Trust requirement, with New Jersey appearing on the most postings. Read daily from Castellum Inc’s own careers site — these are their postings, not a repost.

    Castellum Inc postings in this directory include work in New Jersey, Virginia, and Maryland. Examples include Mechanical Engineer and Electrical Engineering Technician. Check each requisition for its specific qualifications and work location. Read the hiring context.

    Castellum Inc careers site →

    Where the work is

    Metro areas

    • Washington DC metro6

    Clearance mix

    • Secret17
    • Top Secret3
    • Public Trust2

    Open cleared roles at Castellum Inc

    Hiring context for Castellum Inc

    Roles in this hiring snapshot

    Examples from the postings shown here include Mechanical Engineer, Electrical Engineering Technician, and Model Based Systems Engineer, Jr.. These are a sample of the indexed openings. Compare each employer's description for the worksite, required experience, clearance eligibility and any polygraph requirement.

    Sources: Mechanical Engineer; Electrical Engineering Technician; Model Based Systems Engineer, Jr.

    Cleared work at Castellum Inc, answered

    Which security requirements appear in Castellum Inc postings?
    Secret is the most common requirement, on 17 of the 22 active cleared Castellum Inc postings we track. The full mix runs Secret (17), Top Secret (3), Public Trust (2).
    Where does Castellum Inc hire cleared talent?
    New Jersey (14), Virginia (4), Maryland (2), Washington, DC (2). Postings whose location we can't resolve are counted in the total but not broken out here.
    How often is this list of Castellum Inc cleared jobs updated?
    ClearMatch rebuilds this directory daily from Castellum Inc's careers site. It includes postings with security clearance or Public Trust requirements. Public Trust is a background investigation, not a security clearance. The update date below identifies the current snapshot.

    Updated October 8, 2026