• AeroVironment (Arlington, VA)
    …**Job Description** **Job Summary:** The primary role of the Linux System Administrator is to support the full life-cycle management of 24x7 mission-focused ... This role is responsible for the day-to-day operations of deployed systems , including monitoring, auditing, log review, maintenance, troubleshooting, and after-hours… more
    DirectEmployers Association (12/24/25)
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  • AeroVironment (Arlington, VA)
    …Regular **Job Description** **Job Summary** The primary role of the **System Administrator ** is to manage and support mission-critical IT infrastructure. This role ... involves day-to-day operations, troubleshooting, and maintenance across Windows and UNIX systems . You'll work directly with both hardware and software systems in… more
    DirectEmployers Association (12/19/25)
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  • Cyber Systems Administrator

    Serco (Washington, DC)
    …Description & Qualifications** **Position Description & Qualifications** Serco is seeking a ** Cyber Systems Administrator ** to support the 705th CTS ... Albuquerque, New Mexico** . The Cyber System Administrator will operate and maintain systems within...hardware, software, and system components. + Performing as a Systems Administrator for a hybrid classified environment… more
    Serco (01/15/26)
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  • Cyber Systems Administrator

    Northrop Grumman (Elkridge, MD)
    …best work of your career. We are looking for you to join our team as a ** Cyber Systems Administrator ** based out of **Elkridge, MD** . _Please Note: Due to ... our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today,...life and launch your career today. **Introduction for Mission Systems ** At the heart of Defining Possible is our… more
    Northrop Grumman (01/01/26)
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  • Modernization Cyber Systems

    Lockheed Martin (Hanover, MD)
    **Description:** **The Work:** We are seeking professionals interested in Systems Administration\. * Here, you are going to provide life\-cycle services to advance ... providing new features and enhancements to Front End Solutions systems \. This will allow for products to work at\-scale...whim of contract changes\. **What We're Doing:** Lockheed Martin, Cyber & Intelligence invites you to step up to… more
    Lockheed Martin (01/08/26)
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  • Cyber Security Administrator III

    Virtual Service Operations (Arlington, VA)
    Cyber Security Administrator III * Arlington, VA (http://maps.google.com/maps?q=Arlington+VA+USA) Description Are you looking to take the next steps in your ... career as a Cyber Security Administrator III? Let's chat and...TS/SCI clearance to lead implementation and management of operating systems and cyber policies, resolving system outages… more
    Virtual Service Operations (12/11/25)
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  • Cyber Software Engineer - SIGINT…

    Lockheed Martin (Hanover, MD)
    …Test Engineers * Network Engineers * User Experience Designer * Data Science * Systems Administrator \(Linux\) For a complete list that changes weekly, use this ... variety of responsibilities including; * Software development * Software engineering * Systems engineering * Cyber researchers \(Capabilities Analyst, etc\) *… more
    Lockheed Martin (01/08/26)
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  • Systems Administrator 2

    Nightwing (Annapolis Junction, MD)
    …and emerging technologies to expand cybersecurity solutions. Job Description: The Systems Administrator will provide support for implementation, troubleshooting ... Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and intelligence mission support services to meet our… more
    Nightwing (01/12/26)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …+ years of related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to join our team, bringing ... and together our best becomes better. GDIT has an immediate opening for a Systems Administrator to fill a Core Services position supporting the NNSA (National… more
    General Dynamics Information Technology (01/05/26)
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  • Systems Administrator 3

    Nightwing (Annapolis Junction, MD)
    …in the intelligence community, defense, civil, and commercial markets. The Systems Administrator will provide support for implementation, troubleshooting and ... Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and intelligence mission support services to meet our… more
    Nightwing (12/22/25)
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  • Systems Administrator II

    Foxhole Technology, Inc (Fort Meade, MD)
    **Overview** **Job Title: Systems Administrator II** **Job Location: Hybrid FT Meade, MD** **Position Type: Full-time** **Clearance Level: Secret** Foxhole ... around the world **.** Foxhole Technology is seeking a Systems Administrator II who is eager to...is eager to grow their IT career by supporting cyber sensing development and defense activitieswithin a secure Department… more
    Foxhole Technology, Inc (12/30/25)
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  • Systems Administrator Expert…

    General Dynamics Information Technology (Washington, DC)
    …years of related experience **US Citizenship Required:** Yes **Job Description:** ** Systems Administrator Expert - Backup and Configuration** Transform ... technology into opportunity as a ** Systems Administrator Expert - Backup and Configuration**...worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we… more
    General Dynamics Information Technology (01/05/26)
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  • Systems Network Administrator

    Leidos (Laurel, MD)
    …**Leidos** has a new and exciting opportunity for a ** Systems Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics Business ... us and make a difference in National Security!** **Job Summary:** The Systems Network Administrator provides support for implementation, troubleshooting and… more
    Leidos (11/18/25)
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  • PKI Systems Administrator - active…

    General Dynamics Information Technology (Washington, DC)
    …+ years of related experience **US Citizenship Required:** Yes **Job Description:** PKI Systems Administrator Advance how our customers operate while you advance ... your career. Join GDIT as a PKI Systems Administrator and you will build an...worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we… more
    General Dynamics Information Technology (12/17/25)
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  • Senior Systems Administrator

    CACI International (Fort Meade, MD)
    Senior Systems 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 Senior Systems Administrator to provide support for implementation,...CWIP IAT 3 Certification within 6 months of hire ( Cyber Workforce Improvement Program- Information Assurance Technical III) +… more
    CACI International (12/02/25)
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  • Systems Administrator 2 - 23828 (FS…

    Huntington Ingalls Industries (Fort Meade, MD)
    Systems (WS), a business group within HII's Mission Technologies division. Warfare Systems comprises cyber and mission IT; electronic warfare; and C5ISR ... systems . HII works within our nation's intelligence and cyber operations communities to defend our interests in cyberspace and anticipate emerging threats. Our… more
    Huntington Ingalls Industries (01/05/26)
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  • ServiceNow Systems Administrator

    SAIC (Annapolis Junction, MD)
    …be substituted for the degree + Minimum of 9 years of experience as a Systems Administrator in programs and contracts of similar scope, type, and complexity is ... **Description** SAIC has an immediate opening for a ServiceNow Administrator in Annapolis Junction, on a very exciting program! In this role you will do many… more
    SAIC (11/06/25)
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  • Systems Administrator

    BOOZ, ALLEN & HAMILTON, INC. (Annapolis Junction, MD)
    Systems Administrator The Opportunity: In this role, you'll design, operate, and evolve the systems that power national-security missions. From enterprise ... Linux environments such as RHEL or Ubuntu supporting production and mission systems . + Administer and optimize virtualization platforms such as VMware vSphere,… more
    BOOZ, ALLEN & HAMILTON, INC. (12/23/25)
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  • IT Systems Administrator Emergency…

    Lockheed Martin (Hanover, MD)
    …is required * 2\+ years experience within the defense industry as a Systems Administrator * Bachelors or Masters degree from accredited college \(equivalent ... **Description:** **What We're Doing:** Lockheed Martin, Cyber & Intelligence invites you to step up...as but not exclusive to examples like NiFi\) * Systems infrastructure knowledge of routers, firewalls, v\-lans, servers, etc\.… more
    Lockheed Martin (01/08/26)
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  • Systems Network Administrator

    Leidos (Laurel, MD)
    …**Leidos** has a new and exciting opportunity for a ** Systems /Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics Business ... us and make a difference in National Security!** **Job Summary:** Systems /Network administrator will provide support for implementation, troubleshooting and… more
    Leidos (12/20/25)
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