• Senior Security Administrator

    Nightwing (Annapolis Junction, MD)
    …in the intelligence community, defense, civil, and commercial markets. Nightwing is seeking a ** Senior Security Administrator ** who will play a critical role ... and sensitive information. This position is designed for an experienced security professional who thrives in high-visibility environments, operates with minimal… more
    Nightwing (12/29/25)
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  • Senior Systems Administrator 10k…

    Leidos (Annapolis Junction, MD)
    …**Leidos** has a new and exciting opportunity for a Senior Systems Administrator in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... Leave, and much more. **Join us and make a difference in National** ** Security !** As a Senior Systems Administrator you will play a vital role in maintaining… more
    Leidos (11/15/25)
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  • Principal Contract Administrator

    Northrop Grumman (Baltimore, MD)
    …Systems is looking for you to join our team as a **Principal Contract Administrator / Senior Principal Contract Administrator ** based out of Linthicum, MD. ... is a trusted provider of mission-enabling solutions for global security . We have a wide portfolio of secure, affordable,...**This requisition may be filled as a** **Principal Contract Administrator or Senior Principal Contract Administrator more
    Northrop Grumman (11/04/25)
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  • Senior Tier III Administrator

    General Dynamics Information Technology (Fort Meade, MD)
    …experience **US Citizenship Required:** Yes **Job Description:** **GDIT is seeking a Senior Tier III Administrator to provide support to Defense Information ... diagnose and resolve complex issues, maintaining high availability and security of video services.** **Your role will also encompass...along with a drive for innovation to GDIT. The Senior Tier III Administrator must have:** **Education:**… more
    General Dynamics Information Technology (12/11/25)
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  • Senior System Administrator

    DCCA (Columbia, MD)
    Senior System Administrator Location Columbia, MD Job Code 2215 # of Openings 1 Apply Now ... and a competitive compensation and benefits package. Visit our website at: www.dcca.com Senior System Administrator Candidate must have an active TS/SCI w/Poly… more
    DCCA (11/15/25)
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  • Linux Administrator , Senior

    Amentum (Hanover, MD)
    …, & Intel space? If so, look no further. Amentum is seeking a **Linux Administrator , Senior ** to join our team of passionate individuals in **Hanover, MD** . ... projects that make a direct impact on the Nation's security and intelligence mission. Our contract supports more than...to stay ahead of the next challenge. **Responsibilities:** This Senior Linux administrator position will provide candidates… more
    Amentum (11/21/25)
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  • Senior Database Administrator

    GliaCell Technologies (Annapolis Junction, MD)
    Are you a Senior Database Administrator / Engineer who is ready for a new challenge that will launch your career to the next level? + Tired of being treated like ... on Software & System Engineering in Enterprise and Cyber Security solution spaces. We excel at delivering stable and...amazingly talented people Job Description: GliaCell is seeking a Senior Database Administrator / Engineer on one… more
    GliaCell Technologies (11/06/25)
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  • Senior Systems Administrator - Ariba…

    CareFirst (Baltimore, MD)
    **Resp & Qualifications** **PURPOSE:** The Senior Systems Administrator is responsible for assisting with the development and maintenance of unique software ... in leveraging the system's platform. Additionally, the Sr. Systems Administrator is responsible for data reporting, configuration, analytics, and dashboarding,… more
    CareFirst (11/19/25)
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  • Senior Linux Systems Administrator

    Leidos (Annapolis Junction, MD)
    …has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... (CABA)** . Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling,… more
    Leidos (10/09/25)
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  • Senior Cloud System Administrator

    ManTech (Hanover, MD)
    ManTech seeks a motivated, career- and customer-oriented **Sr** **Cloud System Administrator ** to join our team in **Hanover, MD.** Our team delivers enterprise ... IAM, and other core services + Monitor system performance, availability, and security , responding to incidents and performing root cause analysis + Administer and… more
    ManTech (12/10/25)
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  • (Mid. or Senior ) Networking Systems…

    Belay Technologies (Annapolis Junction, MD)
    …and a finalist in 2021! Belay Technologies is seeking a Network Systems Administrator (Windows) to join our team. The selected individual will be responsible for ... and will respond to hardware and software incidents and work with senior system administrators, at times remotely from other locations. Primary Responsibilities: The… more
    Belay Technologies (12/31/25)
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  • Contracts Administrator - Level 3…

    Northrop Grumman (Linthicum Heights, MD)
    …Possible from the day you start. Northrop Grumman is currently seeking a **Contracts Administrator - Level 3 (Principal) or 4 ( Senior Principal)** , to join ... experience and exposure, all while supporting a mission that seeks to ensure the security of our nation and its allies? If so, then Northrop Grumman Space Sector… more
    Northrop Grumman (12/11/25)
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  • Senior Linux System Administrator

    ManTech (Laurel, MD)
    MANTECH seeks a motivated, career and customer-oriented **Linux** **System Administrator ** to join our team in **Laurel, MD.** You will be part of a dedicated team ... substituted for a Bachelor's degree. + 15+ years of experience as a System Administrator or related experience in programs and contracts of similar scope, type, and… more
    ManTech (12/25/25)
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  • Senior Systems Administrator

    BigBear.ai (Annapolis Junction, MD)
    Overview BigBear.ai is seeking a Senior Systems Administrator with an active TS/SCI with Poly clearance to join and assist and meet mission needs for our ... Framework and related systems to ensure optimized performance and security + Support patching, upgrading, and migrating of Linux...+ Experience in building and maintaining VMware environments. + Security + cert What we'd like you to have… more
    BigBear.ai (12/30/25)
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  • Senior System Administrator

    Synergy ECP (Columbia, MD)
    Senior System Administrator Columbia, MD (http://maps.google.com/maps?q=Columbia+MD+USA+21046) Description Company Description: Synergy ECP is a Service Disabled ... Virtual Machines (VMs), loading Operating systems and software, performing security hardening, patching, and monitoring status. Position also will support… more
    Synergy ECP (10/15/25)
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  • Senior Database Administrator (IBM…

    COMSO, Inc (Baltimore, MD)
    Senior Database Administrator (IBM Db2) - ON-SITE Baltimore, MD (http://maps.google.com/maps?q=Baltimore+MD+USA+21201) Description COMSO, Inc. is a powerhouse ... Remediation & Event Monitoring: - Proactivelytrack and review OS logs, and security eventsto identify and remediate issues before becoming critical. - Receive and… more
    COMSO, Inc (12/18/25)
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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, ... Experience with Linux, including installation, configuration, troubleshooting, and maintenance. ** Security Clearance Requirements:** + Active TS/SCI with Polygraph is… more
    ManTech (12/24/25)
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  • Senior Linux System Administrator

    ManTech (Fort Meade, MD)
    Mantech seeks a motivated, career and customer-oriented ** Senior Linux System Administrator ** to join our team in **Ft. Meade, MD** . In this role, you will ... Must be proficient with troubleshooting in a Linux environment. ** Security Clearance Requirements:** + Current/Active TS/SCI with Polygraph. **Physical… more
    ManTech (10/25/25)
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  • Senior Systems Administrator

    Huntington Ingalls Industries (Hanover, MD)
    …Employment Type: Full Time/Salaried/Exempt Anticipated Salary Range: $82,276.00 - $125,000.00 Security Clearance: Ability to Obtain Level of Experience: Mid This ... data evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities...HII, is seeking a highly motivated and experienced System Administrator to join our Minotaur team in Hanover, MD.… more
    Huntington Ingalls Industries (11/25/25)
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  • 337 - Senior Linux Systems…

    ARSIEM (Annapolis Junction, MD)
    …work with. ARSIEM is looking for a motivated and experienced Linux System Administrator for a small, diverse team that provides end-to-end software, systems, and ... and reliability, reduce latency, and optimize performance, while maintaining the security posture. This position will support one of our government clients… more
    ARSIEM (10/30/25)
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