• Linux System Administrator

    ManTech (Fort Meade, MD)
    …IP, UDP, HTTP, DHCP, and DNS. **Clearance Requirement:** + Must have a current/active TS / SCI with Poly **Physical Requirements:** + Must be able to remain in ... area. **Responsibilities include, but are not limited to:** + Design, engineer , and implement automated hardening scripts for internal servers adding scalability… more
    ManTech (11/19/25)
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  • Linux System Administrator

    ManTech (Fort Meade, MD)
    …Competence in computer operating systems **Clearance Requirement:** + Must have a current/active TS / SCI with Poly **Physical Requirements:** + Must be able to ... MD area. **Responsibilities include, but are not limited to:** + Design, engineer , and implement automated hardening scripts for internal servers adding scalability… more
    ManTech (10/16/25)
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  • Threat Research Analyst - Black Lotus Labs

    Lumen (Annapolis, MD)
    …customer site as needed in Annapolis Junction, Maryland. This position requires an active TS / SCI security clearance w/ CI Poly. **Location** This is a remote ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...Labs has an opening for a Senior Lead Security Engineer that will leverage Lumen's unique visibility to hunt… more
    Lumen (11/25/25)
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  • Information System Security Engineers

    Artera Technologies (Annapolis Junction, MD)
    …Location: Maryland (Annapolis Junction / Fort Meade area) Security Clearance: TS / SCI with Appropriate Agency Polygraph Artera Technologies, LLC's engineering ... INFORMATION SYSTEMS SECURITY ENGINEERS Job Type: Full Time...environments with platform IT interconnectivity. + Performs system or network designs that encompass multiple enclaves, to include those… more
    Artera Technologies (10/23/25)
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  • ISSE (Hybrid)

    Huntington Ingalls Industries (Columbia, MD)
    …Job Description Enlighten is looking for an Information Systems Security Engineer (ISSE). Candidate will perform system or network designs that encompass ... Enlighten, honored as a Top Workplace from USA Today, is a leader...assigned. Minimum Qualifications + Security Clearance - A current TS / SCI level US Government clearance is required;… more
    Huntington Ingalls Industries (11/06/25)
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  • Product Owner (Hybrid)

    Huntington Ingalls Industries (Fort Meade, MD)
    …Additional duties as assigned. Minimum Qualifications + + Security Clearance: A current TS / SCI with CI Polygraph level US Government security clearance is ... Enlighten, honored as a Top Workplace from USA Today, is a leader...+ Responsible for understanding all Tiers of the Army Network to support implementing new data pipeline solutions from… more
    Huntington Ingalls Industries (10/22/25)
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  • Senior Information Systems Security Officer…

    Leidos (Fort Meade, MD)
    …position is eligible for a 15k Sign on Bonus** **Position Summary:** The Information System Security Officer (ISSO)/System Engineer is responsible for ensuring ... has a new and exciting opportunity for a Senior Information Systems Security Officer (ISSO) in our **National Security...is required. + **Security Clearance requirement:** Must possess active ** TS / SCI with polygraph** clearance conmd NSSPF At… more
    Leidos (10/16/25)
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  • ISSE

    SAIC (Fort Meade, MD)
    …and implement secure networking, computing, and enclave environments. **Qualifications** + Active TS / SCI with polygraph clearance. + Fourteen years of IA System ... mission excellence on programs of national importance. SAIC is hiring a Senior Information Systems Security Engineers (ISSE) in **Fort Meade, MD** to support a… more
    SAIC (09/04/25)
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  • Staff Solution Consultant

    Trellix (Annapolis, MD)
    …and information technology. + You have experience with enterprise network technology planning, deployment, user migration and operations. + You have excellent ... comprised of Trellix and third-party technologies. The Endpoint Security Engineer (ESE) will report to the Senior Manager of...mitigation, and response strategies. + You hold an active TS / SCI clearance with Full Scope polygraph +… more
    Trellix (11/14/25)
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  • System Administrator 1

    M. C. Dean (Annapolis Junction, MD)
    …and must meet eligibility requirements, including US Citizenship, for access to classified information ; **ACTIVE** **DoD TS / SCI w/ polygraph clearance is ... at MC Dean, you will join forces with more than 5,800 professionals who engineer and deploy automated, secure and resilient power and technology systems; and deliver… more
    M. C. Dean (11/05/25)
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