• 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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  • Senior Principal Network

    BAE Systems (Rockville, MD)
    …with data and computing modernization experience, to join our team as a Senior Principal Network Administrator providing support to the United ... performing hardware deployments, and implementing software according to engineering plans. The Senior Principal Network Administrator will be involved with… more
    BAE Systems (01/10/26)
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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 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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  • Linux System Administrator

    Nightwing (Sterling, VA)
    …availability of IT systems + Coordinate and manage IT projects, including system upgrades, and network improvements ensuring projects are delivered on time + ... community, defense, civil, and commercial markets. Nightwing is seeking a highly motivated Systems Administrator to join a mature program in the Sterling VA… more
    Nightwing (12/20/25)
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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 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 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 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 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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  • Property Administrator Senior

    System One (Bethesda, MD)
    …interested please reach out directly to ###@altaits.com or call/text ### Property Administrator Senior Bethesda, Maryland ONSITE -Monitor the ZEN inventory ... a storage area until ready for deployment. -Coordinate vendor returns with the Network Services team and NIH property management team -Transport property from off… more
    System One (12/26/25)
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  • Network Infrastructure/ System

    CACI International (Mclean, VA)
    Network Infrastructure/ System Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with ... * * **The Opportunity:** CACI is looking for a Network Infrastructure/ System Administrator to join...or Juniper JCNIP certifications or skill level at minimum ( Senior / Expert) + Experience with automating network more
    CACI International (12/17/25)
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  • Database Administrator ( Senior )

    BAE Systems (Sterling, VA)
    …may be available based on position level and/or job specifics. **Database Administrator ( Senior )** **117843BR** EEO Career Site Equal Opportunity Employer. ... **Job Description** BAE Systems , a top-ten prime contractor to the US...government customer. This program will deliver engineering services for network infrastructure as well as sophisticated enterprise computing infrastructure… more
    BAE Systems (10/29/25)
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