• Pr./System Admin - Shift Work (Top Secret)

    Northrop Grumman (Chantilly, VA)
    …empathy, and respect + **Current Security+ or IAT Level 2 certification** _Principal Systems Administrator_ + ** Tier 3 :** Bachelor's degree with 5 ... they're making history. We have an opening for a ** Tier 2/ 3 System Administrator ** to...Level 2 certification** **Preferred Qualifications:** + Red Hat Certified Systems Administrator (RHCSA) certification + Experience with… more
    Northrop Grumman (11/25/25)
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  • Systems Administrator ( Tier

    William C Brown Inc (Springfield, VA)
    Systems Administrator ( Tier 2...and other ISP Contractor Stakeholders when IT issues require Tier 3 escalation or have dependencies external ... protected by law. Description WCBinc is looking for a Systems Administrator ( Tier 2 Desktop...equivalent combination of years of experience and education and 3 + years of prior relevant experience. Location: On Customer… more
    William C Brown Inc (11/13/25)
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  • Tier 3 Network Administrator

    CACI International (Washington, DC)
    Tier 3 Network Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee ... networks (WAN), Unified Communication (UC), Video telecommunication and Streaming services. As a Tier 3 Network Administrator , you'll be challenged with hard… more
    CACI International (12/11/25)
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  • Senior Cloud Systems Administrator

    BAE Systems (Sterling, VA)
    **Job Description** We are looking for a highly skilled Senior Cloud Systems Administrator to join our visible technical program driving the Model Based ... environment + Maintain complex modern cloud architectures + Support Tier 3 and Tier 4...based on position level and/or job specifics. **Senior Cloud Systems Administrator ** **115946BR** EEO Career Site Equal… more
    BAE Systems (12/09/25)
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  • Systems Administrator

    BAE Systems (Sterling, VA)
    …and protect our freedom. BAE Systems is looking for a Senior Systems Administrator to provide comprehensive support to all aspects of system maintenance, ... by troubleshooting escalated issues, restoring service, and escalating to Tier 3 as needed. + Directly assist...be available based on position level and/or job specifics. ** Systems Administrator ** **117073BR** EEO Career Site Equal… more
    BAE Systems (12/09/25)
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  • Citrix Systems Administrator

    Leidos (Bethesda, MD)
    …with customers to handle service inquiries and problems. + Experience working as a Tier 3 system administrator : familiar with using desktop software ... can thrive, keep reading!** Leidos is seeking a Citrix Systems Administrator to support the National Media...of servers located in offsite data centers. + Provide Tier 3 operations support and be able… more
    Leidos (12/03/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …with integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server - active TS/SCI ... ability to obtain and maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II shall support the Information Technology (IT) Operations… more
    V2X (11/15/25)
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  • Sccm/Mecm Systems Administrator

    Leidos (Alexandria, VA)
    …following skills:_** + Experience with Tier 2 system administration and/or Tier 3 engineering of Microsoft Endpoint Configuration Manager (MECM) servers and ... operations across multiple enclaves, classifications, and time zones. The System Administrator provides systems and software Operations and Maintenance (O&M)… more
    Leidos (12/08/25)
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  • Systems Administrator

    William C Brown Inc (Springfield, VA)
    Systems Administrator EOE Statement We are...all of the client/server/storage/network devices, mobile devices, etc.* Provide Tier 2 and Tier 3 ... protected by law. Description WCBinc is looking for a Systems Administrator to join our team to...and remote resolution support for trouble calls, and provide TIER 2/ 3 support of Unix/Windows workstations and… more
    William C Brown Inc (10/14/25)
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  • Systems Administrator (Day Shift)

    General Dynamics Information Technology (Fort Belvoir, VA)
    …**US Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a Systems Administrator with GDIT. A career in enterprise IT means ... operate. At GDIT, people are our differentiator. As a Systems Administrator you will help ensure today...and remote resolution support for trouble calls, and provide TIER 2/ 3 support of Unix/Windows workstations and… more
    General Dynamics Information Technology (12/18/25)
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  • Systems Administrator (2nd shift)

    General Dynamics Information Technology (Mclean, VA)
    …for a Systems Administrator . The candidate is a systems administrator with a strong aptitude to troubleshoot Tier 1 technical problems in real-time ... System (MAAS). This position requires 2nd Shift work - 2:00pm - 10:00pm. **HOW A SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT:** + Work with collaborative teams to… more
    General Dynamics Information Technology (12/26/25)
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  • Systems Network Administrator

    Leidos (Laurel, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Systems /Network Administrator ** in our **National Security Sector's (NSS) Cyber & Analytics ... us and make a difference in National Security!** **Job Summary:** Systems /Network administrator will provide support for implementation, troubleshooting and… more
    Leidos (12/20/25)
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  • Senior Systems Administrator

    Aston Carter (Dulles, VA)
    …teams to resolve desktop application, workstation, and related equipment issues at the Tier 3 level. + Manage capacity, storage planning, and database ... performance. Essential Skills + 5 to 10 years of experience systems administrator + Proficiency in Microsoft Office. + Meraki Networking and M365 knowledge. +… more
    Aston Carter (12/17/25)
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  • Senior Windows Systems Administrator

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    Senior Windows Systems Administrator Clearance Required: Top Secret or Secret Clearance Locations: Adelphi, MD Position Overview: The Senior Windows Systems ... and oversee MECM implementation and operations. + Resolve complex technical issues and provide Tier 3 support as necessary. + Implement and enforce ARL security,… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Lead Senior Systems Administrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, mission-oriented **Senior Systems Administrator ** to join our team in **Chantilly, VA.** As the Lead Senior Systems ... will be responsible for providing a full range of Tier 2/ 3 IT support services and expertise...or high school diploma/GED and 13 years of relevant systems administration experience with 3 + years… more
    ManTech (12/19/25)
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  • Mid System/Network Administrator

    Belay Technologies (Laurel, MD)
    …and a finalist in 2021! Belay Technologies is seeking a Senior System/Network Administrator . The Systems Administrator (SA) provides support for ... operating systems enhancements to improve reliability and performance. The Systems /Network Administrator shall possess the following qualifications: + Ten… more
    Belay Technologies (12/08/25)
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  • Sr Mac Systems Administrator

    SAIC (Washington, DC)
    …role is based in DC and is 100% onsite. **Duties will include:** + Provides Tier 3 - level support. + Develop, deploy, and maintain custom scripts, policies, and ... **Description** SAIC is hiring for a Sr System Administrator who specializes in Mac Systems ...Citizen. + Bachelors and 5+ years or Masters and 3 + years experience is required. 12+ years of relevant… more
    SAIC (10/21/25)
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  • Tier 2 Help Desk Specialist

    Systems Engineering Solutions Corporation (Alexandria, VA)
    …Science, or related discipline Program Description: The program provides comprehensive Tier 1, Tier 2, and Tier 3 IT Infrastructure Support services to ... 1 staff to improve first-call resolution, collaborates with Tier 3 engineers on root cause and...recurring issues to identify potential areas for improvement within systems or processes. + Provide mentoring and technical guidance… more
    Systems Engineering Solutions Corporation (11/22/25)
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  • System Administrator

    Chenega Corporation (Oakton, VA)
    …security and economic interests of our nation. SecuriGence is seeking an experienced Systems Administrator to help contribute to our success. If you enjoy ... System Administrator Oakton, VA . Information Technology Join our...headquartered in Leesburg, VA, provides mission-critical services in Cybersecurity, Systems Engineering and Integration, IT Operations Support, Software Development,… more
    Chenega Corporation (11/12/25)
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  • Senior System Administrator - Network…

    St. George Tanaq Corporation (Suitland, MD)
    …Leadership and Process Optimization - Experienced in leading 24x7 NOC operations, managing Tier 1- Tier 3 escalation workflows, and establishing Standard ... Senior System Administrator - Network Operation Center WFH Flexible*Suitland, MD...to sustain 99.99% uptime across multiple geographically distributed sites. 3 . Enterprise Systems Administration - Expert in… more
    St. George Tanaq Corporation (11/14/25)
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