• Credence (Mclean, VA)
    …code reviews, ensuring code quality, security, and maintainability. Requirements Must possess IT-II / Tier 3 / NACLC / ANACI / Moderate Risk eligibility or have ... Develop and maintain integrations between ServiceNow and other enterprise systems using various integration methods (eg, REST, SOAP). Design,...a current Tier 3 or equivalent investigation. Bachelor's degree… more
    Talent (11/22/25)
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  • Systems Administrator - Tier

    GovCIO (Fairfax, VA)
    …/Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/4592/ systems - administrator tier - 3 ... **Overview** GovCIO is currently hiring for a System Administrator - Tier 3 Support with an active Secret clearance in support of our DEA Bluestone program.… more
    GovCIO (09/02/25)
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  • Pr./System Admin - Shift Work (Top Secret) - Space…

    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 (11/15/25)
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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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  • Network Administrator Tier 2…

    Koniag Government Services (Chantilly, VA)
    …paid holidays, three weeks paid time off, and more. The Tier 2 Network Administrator supports the Tier 3 Network team by assisting in the maintenance, ... a Koniag Government Services company, is seeking a Network Administrator Tier 2 (Network Operations Center) to...network reliability and performance while escalating complex issues to Tier 3 or Tier 4… more
    Koniag Government Services (10/24/25)
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  • Tier 3 Unified Communications…

    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 ... great team and make a difference. **Responsibilities:** As a Tier 3 UC Admin, you will bring:...bring: + Technical knowledge of VoIP / PBX telephony systems , software, hardware, Telecommunications standards, and Cisco Unified Communications… more
    CACI International (10/25/25)
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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 (09/09/25)
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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 (10/08/25)
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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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  • 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

    Leidos (Chantilly, VA)
    **Description** Leidos has an exciting opening for you as our next Tier 2 Service Desk/ Systems Administrator . Your job will be supporting as a Linux ... administrator to provide system maintenance, systems performance...team environment while demonstrating strong cross functional collaboration across Tier 3 and ISP teams. Individuals in… more
    Leidos (11/15/25)
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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 (11/13/25)
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  • Mid-Level Systems Administrator

    The Boeing Company (Herndon, VA)
    …(IDT&S) organization Specialized Infrastructure Operations group is currently seeking a **Mid-Level Systems Administrator ** to join the team in **Herndon, VA; ... Chantilly, VA;** or **Fairfax, VA** . As a Systems Administrator , you will play a crucial...with system administration of complex infrastructure and software development systems + 3 + years of experience with… more
    The Boeing Company (11/19/25)
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  • Junior Systems Administrator

    SOS International LLC (Reston, VA)
    …**Job Description** Overview SOSi is seeking a dedicated and technically skilled **Junior Systems Administrator ** to join our dynamic IT team supporting our ... government customer. This role primarily focuses on handling Tier 2 service desk tickets, providing in-depth technical support, and maintaining systems across a… more
    SOS International LLC (11/21/25)
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  • Senior Linux Systems Administrator

    The Boeing Company (Fairfax, VA)
    …United States Infrastructure Operations (SUSIO) group is currently seeking a **Senior Linux Systems Administrator ** to join the team in **Herndon, VA; Fairfax, ... VA;** or **Chantilly, VA** . As a Senior Linux Administrator , you will play a crucial role in maintaining...infrastructure, ensuring the stability, security and efficiency of our systems . This is an excellent opportunity for a talented… more
    The Boeing Company (11/19/25)
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  • Windows Linux Systems Administrator

    General Dynamics Information Technology (Fort Belvoir, VA)
    …General Dynamics Information Technology (GDIT) is looking for a skilled **IT Systems Administrator ** with experience in Microsoft enterprise environments to ... in a dynamic and mission-focused environment. In this role, you'll **provide Tier II support and systems administration** across multiple large-scale… more
    General Dynamics Information Technology (10/14/25)
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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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  • 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 3 Help Desk Support Engineer

    Koniag Government Services (Washington, DC)
    …a highly qualified, experienced and self-motivated individual to perform the duties of a Tier 3 System Administrator to support a potential future business ... Koniag IT Systems LLC, a Koniag Government Services company, is...opportunity located in Washington, DC. **The ideal Tier 3 System Administrator will:**… more
    Koniag Government Services (10/16/25)
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  • Lead Security Systems Administrator

    Lumen (Herndon, VA)
    …system administration supporting all levels from tier 1 user desktop support to tier 3 backend server and network support + Hands on experience managing ... committed to teamwork, trust and transparency. People power progress. We're looking for top- tier talent and offer the flexibility you need to thrive and deliver… more
    Lumen (11/20/25)
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