• Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated and skilled ** Senior Systems Administrator ** to join our sustainment team in **Chantilly, VA.** In this role, you will support a ... environment by ensuring the continued health, performance, and compliance of complex network and system infrastructures. You will help drive key Operations and… more
    ManTech (12/13/25)
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  • Senior Linux Administrator Team Lead

    General Dynamics Information Technology (Falls Church, VA)
    …**US Citizenship Required:** Yes **Job Description:** **HOW A LINUX SYSTEM ADMINISTRATOR WILL MAKE AN IMPACT:** + Provide system administration support for ... and usage charts, including CPU usage, disk usage and network uptime for the Linux Servers. + Provide general...as this position will require candidate to engage with senior military and government leadership. + Must be able… more
    General Dynamics Information Technology (10/25/25)
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  • Senior Linux System Administrator

    GovCIO (Richmond, VA)
    …/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2025-6348_ **Category** _IT Infrastructure & Network Engineering & ... **Overview** GovCIO is currently hiring for an experienced Linux System Administrator with an active Secret clearance to join an Operations team. This position will… more
    GovCIO (11/07/25)
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  • Senior Windows Administrator

    TekSynap (Radford, VA)
    …**REQUIRED QUALIFICATIONS** **Experience** + Five (5) years as a Windows Systems Administrator or Engineer, including 3 years of task automation using PowerShell. + ... applications/websites (eg, IIS, Apache). + Five (5) years working in complex network environments with strong knowledge of TCP/IP, DNS, DHCP, SMTP, SNMP. +… more
    TekSynap (10/25/25)
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  • Network Administrator

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    ** Network Administrator ** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia, Arlington **Position ID:** J0925-2111 **Employment ... Full Time **Position Description:** CGI Federal has an exciting opportunity for a Network Administrator within our Intel sector advancing the national security… more
    CGI Technologies and Solutions, Inc. (12/31/25)
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  • Network Administrator II

    William C Brown Inc (Springfield, VA)
    Network Administrator II EOE Statement We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment ... other characteristic protected by law. Description WCBinc is looking for a Network Administrator to provide support for implementation, troubleshooting and… more
    William C Brown Inc (12/01/25)
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  • Senior Storage Administrator

    TekSynap (Radford, VA)
    …high availability of enterprise data storage systems. + Maintain storage and network policies and standards aligned with organizational requirements. + Refresh data ... environments integrated with VMware 7.x or higher. + Configure and support network communication and backup software across multiple platforms. + Write and maintain… more
    TekSynap (10/25/25)
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  • Senior Cybersecurity Internal Controls…

    TekSynap (Radford, VA)
    …field, or equivalent years of relevant experience. **Overview** We are seeking a Senior Cybersecurity Network Defense Administratorto join our team supporting an ... **Experience** + Ten (10) years of experience in Cybersecurity and Network Defense roles. + Hands-on experience with ACAS administration, including infrastructure… more
    TekSynap (10/25/25)
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  • Senior Systems Administrator (S)

    SimIS Inc. (Dahlgren, VA)
    …position and is contingent upon award. Job Description: SimIS, Inc. seeks a Senior Systems Engineer to lead systems engineering activities for a US Navy Training ... Experience managing Windows and Linux server environments + Knowledge of network security, firewalls, and intrusion detection systems + Experience with… more
    SimIS Inc. (12/22/25)
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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 Polygraph ... * * **The Opportunity:** CACI is looking for a Network Infrastructure/System Administrator to join the Luke...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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