• 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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  • Senior Linux Systems Administrator

    The Boeing Company (Fairfax, VA)
    …based on candidate eligibility. **Security Clearance** This position requires an active US Top Secret / SCI Security Clearance (US Citizenship Required). (A US ... growth. Find your future with us. The Boeing Company's Information Digital Technology and Security (IDT&S) organization Specialized United...Fairfax, VA;** or **Chantilly, VA** . As a Senior Linux Administrator , you will play a crucial… more
    The Boeing Company (11/19/25)
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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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  • 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

    Nightwing (Sterling, VA)
    …minimize downtime and disruptions. **Required Skills:** + US Citizenship + Must have an active Secret clearance and obtain a TS / SCI clearance + 3+ years of ... community, defense, civil, and commercial markets. Nightwing is seeking a qualified Linux Systems Administrator to work with a close-nit team to assist in the… more
    Nightwing (11/18/25)
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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

    Parsons Corporation (Centreville, VA)
    …server and networking equipment rack installations **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required ... what's possible. **Job Description:** Parsons is seeking a mid-level Linux Systems Administrator . The candidate will support...a US Citizen + Candidate must have a current TS / SCI clearance with Poly + Bachelor's degree… more
    Parsons Corporation (10/18/25)
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  • Linux Systems Administrator

    CACI International (Fort Meade, MD)
    …being assembled by CACI, Inc! We have an opening for a ** Linux Systems Administrator ** with an active TS / SCI w/Polygraph clearance. If you thrive in a ... Linux Systems Administrator Job Category: Information Technology Time...CWIP IAT Level 2 or Level 3. **Requirements:** * TS / SCI with polygraph * Heavy Linux more
    CACI International (10/29/25)
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  • Senior Linux Systems Administrator

    Leidos (Columbia, MD)
    LINUX , Windows, AWS and Virtualization + **Security Clearance** : Must have an active Top Secret / SCI with Polygraph cssrc conmd If you're looking for ... **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber &… more
    Leidos (09/26/25)
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  • Linux System Administrator

    Nightwing (Arlington, VA)
    …and vulnerabilities. **Required Skills:** - US Citizenship - Must have an active DoD Secret clearance, TS / SCI clearance is preferred. - Must be able ... is seeking a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and deployment of… more
    Nightwing (08/28/25)
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  • Linux Systems Administrator

    CACI International (Reston, VA)
    …Work independently with minimal guidance from more senior technical staff. **Required:** + Active Top Secret or TS / SCI clearance. + **CASP+** ... Linux Systems Administrator Job Category: Information Technology Time...Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of… more
    CACI International (10/18/25)
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  • Senior Linux Systems Administrator

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... program "Delivers Mission Success!" Seeking a motivated and experienced Linux System Administrator for a small, diverseteam...+ **Security Clearance** : Candidates must possess an active TS / SCI with Polygraph to be considered for… more
    Leidos (10/09/25)
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  • Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    …in a Linux environment. **Security Clearance Requirements:** + Current/Active TS / SCI with Polygraph. **Physical Requirements:** + Must be able to ... Mantech seeks a motivated, career and customer-oriented **Senior Linux System Administrator ** to join our...to apply for a position with MANTECH, please email us at ###@mantech.com and provide your name and contact information more
    ManTech (10/25/25)
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  • Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    ManTech seeks a **Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will provide support for implementation, ... installation, configuration, troubleshooting, and maintenance. **Security Clearance Requirements:** + Active TS / SCI with Polygraph is required to be considered… more
    ManTech (10/14/25)
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  • Field Engineer/ Linux Systems…

    Huntington Ingalls Industries (Columbia, MD)
    …the interview process. Job Description Enlighten is looking for a Field Engineer/ Linux Systems Administrator to support operational systems at multiple military ... Enlighten, honored as a Top Workplace from USA Today, is a leader...desired, but not required. Can consider up to a TS / SCI with a Polygraph. We have many… more
    Huntington Ingalls Industries (11/06/25)
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  • Linux System Administrator

    ManTech (Fort Meade, MD)
    **ManTech** seeks an experienced and passionate, career and customer-oriented ** Linux System Administrator ** to join our team located in the Fort Meade, MD area. ... and software in support of developing and testing of information technology systems + Experience with Linux ...operating systems **Clearance Requirement:** + Must have a current/active TS / SCI with Poly **Physical Requirements:** + Must… more
    ManTech (10/16/25)
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  • 337 - Senior Linux Systems…

    ARSIEM (Annapolis Junction, MD)
    …every client you work with. ARSIEM is looking for a motivated and experienced Linux System Administrator for a small, diverse team that provides end-to-end ... Original Posting Date: 2025-10-29 Clearance Requirement: This position requires an active TS / SCI with a polygraph. You must be a US Citizen for consideration.… more
    ARSIEM (10/30/25)
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