• Windows System Administrator 1

    M. C. Dean (Falls Church, VA)
    …lives, and changing the world for the better. We are seeking a **System Administrator 1** to join our **Security and Electronic Systems (SES)** business Unit. As ... level of support. + Monitor Enterprise system status for problems such as network outages and or degraded services; provide initial troubleshoot notify proper Sr.… more
    M. C. Dean (12/23/25)
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  • Systems Administrator

    Arena Technical Resources, LLC (Springfield, VA)
    Systems Administrator Location: Springfield, VA, US Job ID: ATR 17769 Job Description Job Title: Systems Administrator Location: Springfield, VA Eligibility: ... Candidate must possess an active TS/SCI clearance and be willing to obtain a CI Polygraph...least 3 years of relevant IT experience in operations, network operations center, systems administration, or similar support role.… more
    Arena Technical Resources, LLC (01/01/26)
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  • Senior Linux Administrator Team Lead

    General Dynamics Information Technology (Falls Church, VA)
    **Req ID:** RQ209314 **Type of Requisition:** Regular ** Clearance Level Must Be Able to Obtain:** Secret **Public Trust/Other Required:** None **Job Family:** IT ... **US Citizenship Required:** Yes **Job Description:** **HOW A LINUX SYSTEM ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide system administration support for… more
    General Dynamics Information Technology (10/25/25)
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  • System Administrator

    Chenega Corporation (Fort Belvoir, VA)
    System Administrator Ft. Belvoir, VA Join our Talent Network Systems Administrator Ft. Belvoir, VA C-CHR-24-036 TheSystem Administratorwill resolve issues ... + Secret clearance Tier 5 investigation required. Join our Talent Network Chenega Corporation and family of companies is an EOE. Equal Opportunity… more
    Chenega Corporation (12/01/25)
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  • Systems Administrator 2

    Nightwing (Annapolis Junction, MD)
    …a bachelor's degree. DoD 8570 compliance with Information Assurance Technical (IAT), Level II . Security Clearance : **_** Qualified applicants MUST HAVE AN ACTIVE ... talent to an array of missions that includes computer network operations, vulnerabilities, characterization, information assurance, and emerging technologies to… more
    Nightwing (10/13/25)
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  • SIPRNet Administrator

    CACI International (Reston, VA)
    …CAT I/ CAT II / CAT III findings associated with scans of network devices. + Coordinate with ISSO/ISSM to update POA&M and reflect open vulnerabilities associated ... SIPRNet Administrator Job Category: Information Technology Time Type: Full...with a focus on classified networks. + Active Secret clearance . + Strong understanding of network devices… more
    CACI International (11/07/25)
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  • Tier 3 Unified Communications Administrator

    CACI International (Washington, DC)
    Tier 3 Unified Communications Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph ... Communications and Collaboration (UC&C) Operations Technician with an active TS/SCI clearance to provide maintenance and advanced support for customers globally. The… more
    CACI International (12/29/25)
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  • SQL Server Database Administrator

    Chenega Corporation (Fort Belvoir, VA)
    SQL Server Database Administrator Ft. Belvoir, VA Join our Talent Network SQL Server Database Administrator Ft. Belvoir, VA C-CHR-24-040 TheSenior SQL Server ... of education. + Possess Baseline and Full Computing Environment Certifications for IAT- II IAW DoD 8570.01-M and BBP 05-PR-M-0002. MCSA: SQL 2016 Database… more
    Chenega Corporation (12/01/25)
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  • 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 delivering ... Installs/loads operating system software, troubleshoots maintains integrity and configures network components along with implementing operating systems enhancements to… more
    ManTech (12/04/25)
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  • Senior Systems Administrator 10k sign…

    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 ... talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence… more
    Leidos (11/15/25)
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