• Linux Administrator

    CACI International (Chantilly, VA)
    Linux Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee ... * We are seeking a highly skilled and motivated Linux Administrator to join our Federal IT...with RMF (Risk Management Framework). Required Qualifications * Active Top Secret clearance ( SCI eligibility… more
    CACI International (11/13/25)
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  • Quality Assurance Linux

    Assertive Professionals (Hanover, MD)
    Quality Assurance Linux Administrator About the Organization Established in 2015,AssertiveProfessionals(AP), is anEconomically Disadvantaged Woman Owned Small ... Timeline Open Description Assertive Professionalsis in search of aQuality Assurance Linux Administrator to support orNational Security CustomernearHanover, MD.… more
    Assertive Professionals (09/25/25)
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  • Linux Administrator - ACAS

    CACI International (Springfield, VA)
    Linux Administrator - ACAS Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI Employee Type: ... the NGA mission. In this role, we're seeking a ** Linux Administrator - ACAS** who could potentially...vendor updates are received **You'll Bring These Qualifications** + Top Secret / SCI clearance (current), with… more
    CACI International (11/10/25)
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  • Sr. Linux /Unix Administrator

    S4 Inc. (Omaha, NE)
    …technical teams from a service support perspective. Required Qualifications: + Top Secret security clearance and eligible for SCI access + Cloud+ or GICSP ... Time | Comprehensive and competitive benefits Job Title: Sr. Linux /Unix Administrator Work Location: USSTRATCOM Offutt AFB Clearance: TS / SCI Education:… more
    S4 Inc. (10/08/25)
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  • Linux Systems Administrator

    CACI International (Hampton, VA)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI Employee Type: ... members on Linux and job-related tasks. **Qualifications:** _Required:_ + Active TS / SCI security clearance. + Bachelor's degree in computer science, … more
    CACI International (11/15/25)
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  • Principal Linux System Administrator

    BAE Systems (Manchester, NH)
    …in ensuring the integrity, security, and availability of systems operating within Sensitive Compartmented Information Facilities (SCIFs) or other closed ... equipment (up to 40lbs) and work within controlled environments. **In this Principal Linux Administrator position you will make impacts in the following ways;**… more
    BAE Systems (10/07/25)
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  • LINUX Systems Administrator - Active…

    General Dynamics Information Technology (Washington, DC)
    …related experience **US Citizenship Required:** Yes **Job Description:** ** Linux Systems Administrator ** **- Active Top Secret Required** Seize your ... RQ204512 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret / SCI **Public Trust/Other Required:** None **Job Family:** IT… more
    General Dynamics Information Technology (11/01/25)
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  • Senior Linux Systems Administrator

    General Dynamics Information Technology (Macdill AFB, FL)
    …RQ207810 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret / SCI **Public Trust/Other Required:** None **Job Family:** IT ... you advance your career. Join GDIT as a **Senior Linux Systems Administrator ** and build an impactful...systems, networks, and mission requirements. + **Security clearance level: TS / SCI clearance required** + Role requirements: +… more
    General Dynamics Information Technology (09/26/25)
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  • Linux Systems Administrator

    CACI International (Linthicum, MD)
    Linux Systems Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph ... * * **Exciting Opportunity: Join Our Team as a Linux System Administrator !** Are you passionate about...solutions. **Qualifications:** _Required:_ + **Security Clearance:** An active NSA TS / SCI with Polygraph. + **Proven Experience:** 3… more
    CACI International (10/18/25)
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  • Linux Systems Administrator

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    ** Linux Systems Administrator ** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia, Arlington **Position ID:** J0925-2110 **Employment ... Description:** CGI Federal has an exciting opportunity for a Linux Systems Administrator within our Intel sector...2 to 5 years of experience * Security Clearance: TS / SCI required with the ability to obtain… more
    CGI Technologies and Solutions, Inc. (10/01/25)
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  • Linux Systems Administrator 2/3…

    Northrop Grumman (Melbourne, FL)
    …systems **Preferred Qualifications** : + Bachelor's degree in Information Technology + Active Top Secret , TS / SCI , SAP/SAR access, or Polygraph is ... Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** to join its dynamic team of technical… more
    Northrop Grumman (10/07/25)
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  • Linux System Administrator

    CACI International (Sarasota, FL)
    …has an immediate opening for a Linux Systems Administrator , with a Top Secret Clearance ( TS / SCI ) with polygraph for our corporate ... Linux System Administrator Job Category: Information Technology Time...Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage… more
    CACI International (10/04/25)
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  • Linux Systems Administrator

    Huntington Ingalls Industries (Nellis AFB, NV)
    SCI and relevant SAP/SAR Clearance. + Candidates must have had an active Top Secret clearance within the last 24 months. Preferred Requirements + ... Full Time/Salaried/Exempt Anticipated Salary Range: $106,000.00 - $197,000.00 Security Clearance: TS / SCI Level of Experience: Senior Meet HII's Mission… more
    Huntington Ingalls Industries (10/03/25)
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  • Senior Linux System Administrator

    BAE Systems (San Diego, CA)
    …**Required Education, Experience, & Skills** US Citizenship is required by contract. Active US Top Secret Security Clearance / SCI is required with the ... career with BAE Systems. BAE Systems is seeking a Senior Closed Area Linux Systems Administrator to provide comprehensive technical and operational support for… more
    BAE Systems (09/18/25)
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  • Senior Linux Systems Administrator

    General Dynamics Information Technology (Livermore, CA)
    …ID:** RQ209638 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None ... **Job Summary:** We are seeking a highly skilled Senior Linux Systems Administrator . The role involves performing...tact, and follow-through. **Security Requirements:** + Must have a TS / SCI security clearance and be eligible for… more
    General Dynamics Information Technology (11/04/25)
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  • Linux Systems Administrator

    BCMC (Arlington, VA)
    …and vulnerabilities. Required Skills: - US Citizenship - Must have an active DoD Secret clearance, TS / SCI clearance is preferred. - Requires on-site work ... and business continuity of the customer mission. Responsibilities: - Serve as a lead Linux Systems Administrator overseeing Red Hat Enterprise Linux (RHEL)… more
    BCMC (10/16/25)
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  • Linux /UNIX Systems Administrator

    General Dynamics Information Technology (Springfield, VA)
    …ensure today is safe and tomorrow is smarter. Our work depends on a TS / SCI cleared Linux /UNIX Systems Administrator joining our team to support our ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph...is ready to operate as a TIER 3 level Linux Administrator , experienced in managing large amounts… more
    General Dynamics Information Technology (10/11/25)
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  • Linux Systems Administrator

    Huntington Ingalls Industries (Nellis AFB, NV)
    Linux (RHEL) systems, highly desired. + Candidates with an active TS / SCI clearance, highly desired. + Certifications: Linux + and Security+, desired. + ... Type: Full Time/Salaried/Exempt Anticipated Salary Range: $100,000.00 - $140,000.00 Security Clearance: Top Secret Level of Experience: Mid Meet HII's Mission… more
    Huntington Ingalls Industries (10/08/25)
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  • MSIC - HPC Linux Systems…

    COLSA Corporation (Huntsville, AL)
    Join our team as a Linux Systems Administrator , where you will...to 12 years of related experience + Active DoD Top Secret Clearance with SCI ... for a skilled professional with a solid foundation in Linux administration and a collaborative approach to problem-solving. +...+ Virtualization experience with VMWare or Nutanix. + Active TS // SCI clearance with a current CI Scope… more
    COLSA Corporation (10/02/25)
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  • Principal Linux Systems…

    Northrop Grumman (Linthicum Heights, MD)
    … system environments + Candidates must have a current DOD ** Top ** ** Secret ** levelsecurity clearance, to include ** SCI access** and a recent **Polygraph** ... career. Northrop Grumman Classified Solutions is seeking a well-qualified ** Linux Systems Administrator ** to join its dynamic...not a virtual position._** **Candidates MUST possess a current TS / SCI to include a current and recently… more
    Northrop Grumman (08/20/25)
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