• Tier 3 Network

    CACI International (Reston, VA)
    Tier 3 Network Administrator Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph ... (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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  • Systems Administrator - Tier

    GovCIO (Fairfax, VA)
    **Overview** GovCIO is currently hiring for a System Administrator - Tier 3 Support with an active Secret clearance in support of our DEA Bluestone program. ... USD $130,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/4592/systems- administrator tier - 3 -support/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-VA-Fairfax_ **ID**… more
    GovCIO (12/02/25)
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  • Systems Administrator ( Tier 2…

    William C Brown Inc (Springfield, VA)
    …close with engineering teams and other ISP Contractor Stakeholders when IT issues require Tier 3 escalation or have dependencies external to the UDS contract ... Systems Administrator ( Tier 2 Desktop Support) EOE...management of UDS deployed software and end user devices Network and locally attached printers Assist users in accessing… more
    William C Brown Inc (11/13/25)
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  • Network Administrator II

    William C Brown Inc (Springfield, VA)
    Network Administrator II EOE Statement We are an...architecture and devices. What You'll Get to Do: + Provide Tier 2 and Tier 3 problem ... 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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  • Network Administrator

    Idea Entity (Rustburg, VA)
    Title: Network Administrator Department: IT Reports To:...desk), Tier 2 (subject matter support), and Tier 3 (vendor) support + Liaise with ... lasting impact for our customers and their businesses. Role Summary The Network Administrator will be responsible for the day-to-day operations of delivering and… more
    Idea Entity (12/06/25)
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  • Network Administrator

    Leidos (Chantilly, VA)
    **Description** Leidos is seeking a Mid-level Forward Deployed Network Administrator to join our Network Engineering Team within the Engineering Operations ... network operations. **Primary Responsibilities** + Monitor and troubleshoot network issues in support of Tier 2...this job requisition will remain open for at least 3 days with an anticipated close date of no… more
    Leidos (11/15/25)
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  • Systems Administrator II Generalist Sr…

    V2X (Springfield, VA)
    …Senior Systems Administrator II shall support the mid-level internal escalation tier (s) for the Server O&M team providing troubleshooting support and guidance to ... and enhance readiness. Aligned around a shared purpose, our $ 3 .9B company and 16,000 people work alongside our clients,...II shall work closely with the activity's Senior Systems Administrator , Network Engineer as well as the… more
    V2X (11/15/25)
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  • F-22 iMIS System Administrator (Level…

    Lockheed Martin (Langley Air Force Base, VA)
    …partnering with our customer, you will wear many hats; system admin, data management, network admin, and tier 1 and 2 support duties\. IMIS Administrators are ... Join the Lockheed Martin Aeronautics Field Sustainment Team as an IT Systems Administrator for our Langley Air Force Base, Virginia office\. As critical members of… more
    Lockheed Martin (09/19/25)
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  • Senior Systems Administrator

    TekSynap (VA)
    …stable operation of the in-house computer software systems and network connections. This includes planning, developing, installing, configuring, maintaining, ... supporting, and optimizing all network software and communication links. + Organizes and directs...system configuration change and upgrade recommendations. + Increases system administrator efficiency and accuracy via the use of automated… more
    TekSynap (11/15/25)
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  • Senior Network Administrator

    TekSynap (Radford, VA)
    …join date. **Clearance** + Secret - IT-II Non-Critical Sensitive Clearance or Tier 3 (T3) investigation. **DESIRED QUALIFICATIONS** **Education** + Bachelor's ... configuring, maintaining, and migrating Palo Alto Firewalls. + Three ( 3 ) years of experience using network monitoring...+ Three ( 3 ) years of experience using network monitoring tools (eg, SolarWinds, Cisco Prime, Palo Alto… more
    TekSynap (10/25/25)
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  • Systems Administrator

    William C Brown Inc (Springfield, VA)
    …resolution for all of the client/server/storage/ network devices, mobile devices, etc.* Provide Tier 2 and Tier 3 problem identification, diagnosis and ... Systems Administrator EOE Statement We are an equal employment...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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  • System Administrator

    Chenega Corporation (Oakton, VA)
    System Administrator Oakton, VA . Information Technology Join our Talent Network Are you ready to enhance your skills and build your career in a rapidly evolving ... Operations Support, Software Development, and Program Management. Job Title:System Administrator Location:Oakton, Virginia Clearance Level:Top Secret Clearance Summary We… more
    Chenega Corporation (11/12/25)
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  • G2 Senior Systems Administrator | Active…

    General Dynamics Information Technology (Fairfax, VA)
    …recommendations to ensure optimum performance and continuity of critical systems. + Provides Tier 3 support as needed. + Manage Development server environment + ... **Job Description:** Transform technology into opportunity as a **Senior Systems Administrator ** at GDIT. Shape what's next for mission-critical government projects… more
    General Dynamics Information Technology (12/08/25)
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  • SharePoint Administrator

    Trace Systems Inc (Portsmouth, VA)
    …Investigate and resolve SharePoint errors, performance bottlenecks, and service disruptions. + Provide tier 2/ 3 support to end users and site owners for ... Job Overview Job Title: SharePoint Administrator Location: Portsmouth, VA Job Responsibilities Trace Systems is seeking a SharePoint Administrator to support the… more
    Trace Systems Inc (09/16/25)
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  • Systems Administrator - NETTN Support

    Huntington Ingalls Industries (Virginia Beach, VA)
    …Collaborate with internal teams to support service continuity and improvement + Provide Tier 2/ 3 -level support and contribute to team knowledge sharing Minimum ... Ability to perform root cause analysis, escalate technical issues appropriately, and deliver Tier 2/ 3 support + Strong written and verbal communication skills,… more
    Huntington Ingalls Industries (10/11/25)
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  • Systems Administrator

    BAE Systems (Sterling, VA)
    … 2 incident response by troubleshooting escalated issues, restoring service, and escalating to Tier 3 as needed. + Directly assist end users and mission partners ... and protect our freedom. BAE Systems is looking for a Senior Systems Administrator to provide comprehensive support to all aspects of system maintenance, from daily… more
    BAE Systems (12/09/25)
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  • Virtual Platform Administrator - REMOTE

    TekSynap (VA)
    …(5) years of overall professional experience in systems engineering. + Three ( 3 ) years hands-on experience supporting Department of Defense (DoD) IT hosting ... solutions (desired). **Clearance** + Top Secret - IT-I ( Tier 5/SSBI) Critical Sensitive Clearance **Certifications** **DoD 8570 IAT Level II Baseline… more
    TekSynap (11/08/25)
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  • Junior Systems Administrator

    SOS International LLC (Reston, VA)
    …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,...in-depth technical support, and maintaining systems across a secure network environment. The ideal candidate is detail-oriented, proactive, and… more
    SOS International LLC (11/21/25)
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  • Systems Administrator

    Arena Technical Resources, LLC (Springfield, VA)
    …Own incidents from creation to resolution, open and maintain tickets, drive updates, coordinate with Tier 2 and Tier 3 technicians, and ensure clean hand ... Systems Administrator Location: Springfield, VA, US Job ID: ATR...3 years of relevant IT experience in operations, network operations center, systems administration, or similar support role.… more
    Arena Technical Resources, LLC (12/08/25)
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  • AIX Administrator

    ASM Research, An Accenture Federal Services Company (Richmond, VA)
    …+ Plan, install, test, and implement upgrades and patches to AIX OS. + Provides tier 2 and 3 supports for escalations from Help Desk. + Knowledge and ... support, database administration, software quality assurance/quality control, software engineering, network telecommunications, and infrastructure operations of administration, analysis, engineering… more
    ASM Research, An Accenture Federal Services Company (11/21/25)
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