• Senior System Administrator

    St. George Tanaq Corporation (Suitland, MD)
    Senior System Administrator - Network Operation Center WFH Flexible*Suitland, MD (http://maps.google.com/maps?q=Suitland+MD+USA) Job Type Full-time ... the Role** We are seeking a ** Senior System Administrator - Network Operation...+ Minimum 8 years of advanced expertise in enterprise-level network and systems administration, ensuring mission-critical … more
    St. George Tanaq Corporation (11/14/25)
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  • Senior System Administrator

    St. George Tanaq Corporation (Suitland, MD)
    Senior System Administrator - Network Security WFH Flexible*Suitland, MD (http://maps.google.com/maps?q=Suitland+MD+USA) Job Type Full-time Description ... the Role** We are seeking a ** Senior System Administrator - Network Security**...procedures within the IT security field. + Experience managing systems for a federal government agency. + Experience with… more
    St. George Tanaq Corporation (11/18/25)
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  • Network Administrator Senior

    GovCIO (Alexandria, VA)
    **Overview** GovCIO is currently hiring a ** Senior Network Administrator ** to manage secure network operations in support of the US Coast Guard. This ... USD $126,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/7300/ network - administrator - senior /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-VA-Alexandria_ **ID** _2025-7300_… more
    GovCIO (12/24/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    Senior Systems Administrator II shall work closely with the activity's Senior Systems Administrator , Network Engineer as well as the IT team ... complex challenges with integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server… more
    V2X (11/15/25)
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  • Mid System / Network

    Belay Technologies (Laurel, MD)
    …in 2020 and a finalist in 2021! Belay Technologies is seeking a Senior System / Network Administrator . The Systems Administrator (SA) provides ... systems enhancements to improve reliability and performance. The Systems / Network Administrator shall possess the...bachelor's degree + TS/SCI with poly The Level 2 System / Network Administrator shall possess the… more
    Belay Technologies (12/08/25)
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  • Senior Systems Administrator

    Chenega Corporation (Fort Belvoir, VA)
    …VA Join our Talent Network Senior Systems Administrator Ft. Belvoir, VA C-CHR-24-041 TheSenior System Administratorwill provide primary and backup ... Senior Systems Administrator Ft....and information assurance support. Duties and Responsibilities: + Provide systems administration support for the Windows operating system more
    Chenega Corporation (12/01/25)
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  • Senior Linux System

    Belay Technologies (Annapolis Junction, MD)
    …runner up in 2020 and a finalist in 2021! Belay Technologies is seeking a Senior Linux System Administrator (SA). The SA provides support for implementation, ... manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components… more
    Belay Technologies (01/04/26)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to join our ... 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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  • 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 ... * * * **The Opportunity:** CACI is seeking a Senior Systems Administrator to provide...some UNIX operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network more
    CACI International (12/02/25)
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  • Windows System Administrator

    Link Solutions Inc (Adelphi, MD)
    …appraised for CMMI ML3 for Services and Development. Link Solutions is seeking a Windows System Administrator ( Senior -Level) to join our team at Adelphi, MD. ... active DoD Top Secret Clearance + Non-remote (relocation incentive available) The Windows System Administrator ( Senior -Level) will be responsible for the… more
    Link Solutions Inc (01/06/26)
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  • Mid/ Senior System

    Belay Technologies (Annapolis Junction, MD)
    …manages UNIX and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components ... a finalist in 2021! Belay Technologies is seeking a System Administrator (SA) to join our intel...for implementation, troubleshooting and maintenance of Information Technology (IT) systems . The SA manages IT systems including… more
    Belay Technologies (11/19/25)
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  • Senior Linux System

    ManTech (Laurel, MD)
    …and manage Linux (Rocky) operating systems . Installs/loads operating system software, troubleshoots maintains integrity and configures network components ... MANTECH seeks a motivated, career and customer-oriented **Linux** ** System Administrator ** to join our team...for implementation, troubleshooting and maintenance of Information Technology (IT) systems . + Manage IT system infrastructure and… more
    ManTech (12/25/25)
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  • Senior System Administrator

    Amentum (Springfield, VA)
    …Cyber, Security, & Intel space? If so, look no further. Amentum is seeking a ** Senior System Administrator ** to join our team of passionate individuals in ... combination of these * Troubleshoot, maintain integrity and configure network components along with implementing operating systems ...systems including the transition and migration of corporate systems * Monitor and report on system more
    Amentum (11/20/25)
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  • Senior Linux System

    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, ... troubleshooting, and maintenance of IT systems , as well as manage IT system ...maintenance of IT systems . + Manage IT system infrastructure and processes related to client/server/storage/ network more
    ManTech (12/24/25)
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  • Senior Windows Systems

    Leidos (Arlington, VA)
    Systems Security Certified Practitioner (SSCP) ) Training (DISA-US1390 DCWF Windows Systems Administrator ). + Expert knowledge of Windows Active Directory ... & Windows DFS Shares. + Implement and maintain robust system hardening techniques using security compliance tools such as...+ Knowledge of security tools and technologies to protect systems from vulnerabilities. + Familiarity with network more
    Leidos (01/07/26)
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  • Senior Linux Systems

    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 & ... "Delivers Mission Success!" Seeking a motivated and experienced Linux System Administrator for a small, diverseteam that... for a small, diverseteam that provides end-to-end software, systems , and network engineering services to support… more
    Leidos (01/08/26)
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  • Senior System Administrator

    SAIC (Fort Belvoir, VA)
    **Description** The Senior System Administrator will provide support for operational intelligence integration and data-centric operations for customers ... implements new standards, policies and procedures. Incumbent in this job works closely with Network and Systems Analysts to help determine and develop the … more
    SAIC (11/19/25)
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  • Senior Systems Administrator

    Leidos (Annapolis Junction, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **Intelligence Sector's (NSS) Cyber & Analytics ... and make a difference in National** **Security!** As a Senior Systems Administrator you will...and Windows environments. + Implement, troubleshoot, and maintain IT systems . + Manage daily IT system configuration… more
    Leidos (11/15/25)
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  • Senior Linux System

    GovCIO (Washington, DC)
    …referral to this job (https://careers-govcio.icims.com/jobs/6348/ senior -linux- system - administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This position… more
    GovCIO (11/07/25)
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  • Senior ServiceNow Systems

    SAIC (Annapolis Junction, MD)
    …UNIX, Linux and Windows operating systems and installs/loads operating system software, troubleshoots, maintains integrity and configures network components ... + Minimum of 14 years of experience as a Systems Administrator in programs and contracts of...ServiceNow with other applications is required Desired: + ServiceNow System Administrator certification + DoD 8570 compliance… more
    SAIC (11/06/25)
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