• Senior System Administrator

    RTX Corporation (Springfield, VA)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with Poly - Current At Raytheon, the foundation of everything ... a safer, more secure world. Raytheon seeks a Systems Administrator to join a high-performing team at the heart...of education. + Active and transferable US government issued TS / SCI CI Poly security clearance is required… more
    RTX Corporation (10/21/25)
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  • System Administrator Level 3

    Jovian Concepts, Inc. (Annapolis Junction, MD)
    …3 for a great opportunity in the Annapolis Junction area. This role requires a TS / SCI Clearance with Polygraph to be considered. No CCA's will be accepted at ... time. Candidate will be responsible for providing Sr. level Linux System Administration support for the program. Required: Very...and software integration. Qualifications: + An active and current TS / SCI Clearance with Polygraph is required to… more
    Jovian Concepts, Inc. (09/24/25)
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  • Classified Area Systems Administrator

    Leidos (Huntsville, AL)
    …for Windows and Linux systems. + **Must have an active DoD Secret clearance and ability to obtain Top - Secret clearance.** **Preferred Qualifications:** ... + Previous experience in a classified Collateral environment / SAP / SCI /. + System Administrator experience in a similarly sized organization. + Understanding… more
    Leidos (10/16/25)
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  • Sr Principal Windows Systems Administrator

    Northrop Grumman (Dulles, VA)
    …Active Directory, GPOs, Policies, and permissions + Candidates must have a current DOD ** Top Secret / SCI ** level security clearance to include a current ... support, and team to do some of the best work of your career. ** Information Technology Professionals, We Want You!** The Northrop Grumman Chief Information and… more
    Northrop Grumman (10/03/25)
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  • Cloud Systems Administrator

    CACI International (Laurel, MD)
    Cloud Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee ... at VM, container, or application levels. **Qualifications:** _Required:_ + An active NSA TS / SCI with Polygraph. + Bachelor's degree in Computer Science or a… more
    CACI International (10/16/25)
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  • Cloud Systems Administrator V

    Criterion Systems (Reston, VA)
    …experience. Additional experience may be considered in lieu of degree. + Must have TS / SCI with active (<= 6 years) polygraph. Will consider candidates with poly ... + Experience supporting security audits and testing events. Security Clearance Level + TS / SCI with Polygraph (current) Work Schedule + Full-time on-site at… more
    Criterion Systems (08/08/25)
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  • Senior Systems Administrator

    Leidos (Tucson, AZ)
    …Aurora, CO + St. Louis, MO + Tucson, AZ **Clearance Level Required:** Top Secret with the ability to obtain SCI , as well as a Polygraph. **Primary ... of the Decision Advantage Solutions Business Area, is currently seeking a Senior Systems Administrator . As a senior member of our IT operations team, you will play a… more
    Leidos (10/10/25)
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  • System Administrator

    CACI International (College Park, MD)
    System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: ... * * **The Opportunity:** CACI is seeking a System Administrator to join our team. **Responsibilities:** As a Mid-Level...specific research projects and needs. **Qualifications:** _Required:_ + Active TS / SCI with Polygraph + Provide support for… more
    CACI International (09/10/25)
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  • Cross Domain Solutions Administrator (ONI)

    FGS, LLC (Suitland, MD)
    …**Employment Term and Type: Regular, Full Time** **Required Security Clearance: TS / SCI ** **Required Education: High School or equivalent experience** **Salary ... Requirements + High School diploma or equivalent Security Clearance Requirements: + TS / SCI Physical Requirements: + Sitting 70% Standing 30%, Climbing 0%,… more
    FGS, LLC (08/23/25)
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  • Systems Administrator

    William C Brown Inc (Springfield, VA)
    …have Security+ certification or DoD 8570 Level II equivalent within 90 days of hire* TS / SCI Clearance required and eligibility to obtain a Poly* UNIX, Windows, ... Systems Administrator EOE Statement We are an equal employment...Springfield Full-Time/Part-Time Full-Time Exempt/Non-Exempt Non-Exempt Security Clearance Requirements Active TS / SCI Clearance and eligibility to… more
    William C Brown Inc (10/14/25)
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