• 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 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 (09/03/25)
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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 (06/26/25)
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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 (08/11/25)
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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. (07/09/25)
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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 (09/13/25)
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  • IT Linux Systems Administrator

    SpaceX (Hawthorne, CA)
    IT Linux Systems Administrator - Top Secret ...both formal and informal situations. ADDITIONAL REQUIREMENTS: + Active Top Secret or TS / SCI ... human life on Mars. IT LINUX SYSTEMS ADMINISTRATOR - TOP SECRET CLEARANCE...Docker, etc). + Comfortable working with mission critical and sensitive systems, with a sense of urgency appropriate to… more
    SpaceX (08/08/25)
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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 (08/02/25)
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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 (07/05/25)
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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 ... IAT LevelII certification. + Active US Government Clearance: [Specify TS / SCI , TS , or Secret...years of experience with a degree) as a system administrator . + Strong command of Linux RHEL… more
    BAE Systems (09/09/25)
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  • Lead 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: $100,000.00 - $200,000.00 Security Clearance: TS / SCI Level of Experience: Senior Meet HII's Mission… more
    Huntington Ingalls Industries (08/16/25)
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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 (09/09/25)
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  • Linux Systems Administrator 3/4…

    Northrop Grumman (Melbourne, FL)
    …**Preferred Qualifications** : + Bachelor's degree in Information Technology + Active Secret , Top Secret , SCI , SAP/SAR access, or Polygraph ... Northrop Grumman Classified Solutions team is seeking an experienced ** Linux Systems Administrator ** to join its dynamic...have the ability to obtain, and maintain, a DOD ** Top Secret ** level security clearance as a… more
    Northrop Grumman (08/01/25)
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  • Principal Linux System Administrator

    General Dynamics Information Technology (Livermore, CA)
    …ID:** RQ192592 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None ... Required:** Yes **Job Description:** $10K Sign-on bonus A Senior Linux System Administrator Maintains an organization's computer...and follow through **Security Requirements** + Must have a Top Secret - SCI security clearance **Education… more
    General Dynamics Information Technology (08/09/25)
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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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  • Linux System Administrator

    ManTech (San Antonio, TX)
    …and implement file version controls. **Clearance Requirements:** + Must have a current/active Top Secret / SCI with Polygraph **Physical Requirements:** + The ... MANTECH seeks a motivated, career and customer-oriented ** Linux ** **Systems Administrator ** to join our...with ManTech through its online applicant system, please email us at ###@mantech.com and provide your name and contact information more
    ManTech (08/16/25)
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  • Principal Linux Systems…

    Leidos (Aurora, CO)
    …with LINUX , Windows and Virtualization + **Security Clearance** : Must have an active Top Secret / SCI with Polygraph cssrc conmd Come break things (in a ... **Description** **Leidos** has a new and exciting opportunity for a **Principal Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber &… more
    Leidos (08/11/25)
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  • Senior Linux Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA** This opportunity allows you to become part of ... drive impactful solutions in support of critical government missions. As a **Senior Linux Systems Administrator ,** you will help maintain and enhance the… more
    ManTech (08/30/25)
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  • Linux Systems Administrator 3

    Huntington Ingalls Industries (Nellis AFB, NV)
    … clearance within the last 24 months Preferred Requirements + Active DoD TS / SCI Clearance + Certifications: Linux + and COMPTIA+/Security+. + Experience ... Time/Salaried/Exempt Anticipated Salary Range: $95,000.00 - $135,000.00 Security Clearance: Top Secret Level of Experience: Mid Meet...Mission Technologies, a Division of HII is seeking a Linux Systems Administrator 3 to support Modeling,… more
    Huntington Ingalls Industries (09/06/25)
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  • Sr Principal HPC Linux Systems…

    Northrop Grumman (Redondo Beach, CA)
    … systems. **Preferred Qualifications:** + Bachelor's degree in Information Technology + Active Top Secret , TS / SCI , Polygraph, or SAP/SAR access would ... Northrop Grumman Classified Solutions team is seeking a senior ** Linux Systems Administrator ** to join its dynamic...have the ability to obtain, and maintain, a DOD ** Top Secret ** level security clearance as a… more
    Northrop Grumman (09/11/25)
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  • Mid-Level Linux System Administrator

    Belay Technologies (Laurel, MD)
    …2019, runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a Linux System Administrator to join our intel team. + We are seeking a Mid-Level ... Linux System Administrator to work on a...Tool Suite Candidates should have the following qualifications: + TS / SCI Clearance with polygraph + A bachelor's… more
    Belay Technologies (07/21/25)
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