• Senior IT Systems

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities ... but are not limited to:** + Providing end-user support to personnel utilizing ITD IT systems . + Triaging help desk tickets for a broad range of service requests… more
    ManTech (08/20/25)
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  • Senior IT Systems

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Administrator ** to join our team in **Chantilly, VA.** **Responsibilities ... but are not limited to:** + Providing end-user support to personnel utilizing ITD IT systems . + Triaging help desk tickets for a broad range of service requests… more
    ManTech (08/20/25)
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  • Senior Systems Administrator

    Indigo IT, LLC (Washington, DC)
    Senior Systems Administrator Washington, DC SUMMARY: Founded in 2001, Indigo IT is an award winning information technology consulting and services ... of five (5) years of experience or equivalent work experience as a systems engineer/ administrator + Preference of Bachelor's degree in Computer Science or… more
    Indigo IT, LLC (08/13/25)
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  • Senior High Performance Computing (HPC)…

    BAE Systems (Annapolis Junction, MD)
    …level and/or job specifics. ** Senior High Performance Computing (HPC) Systems Administrator ** **115702BR** EEO Career Site Equal Opportunity Employer. ... **Job Description** At BAE Systems , we promote a strong, collaborative culture and... Administrators to: + Support a large client-server based IT enterprise in installation, configuration, and networking of Linux… more
    BAE Systems (09/09/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Washington, DC)
    …5 + years of related experience **US Citizenship Required:** Yes **Job Description:** Senior Systems Administrator Own your opportunity to join our ... becomes better. GDIT has an immediate opening for a Systems Administrator to fill a Core Services...with applicable system security controls. + Provide support to IT systems including day-to-day operations, monitoring and… more
    General Dynamics Information Technology (09/16/25)
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  • Senior Systems Administrator

    V2X (Springfield, VA)
    …maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II supports the information technology ( IT ) Operations and Maintenance ... complex challenges with integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - active TS/SCI… more
    V2X (08/07/25)
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  • Senior Systems Administrator

    CACI International (Annapolis Junction, MD)
    Senior Systems Administrator Job...Provide the daily activities of configuration and operation of IT systems + Provide assistance to users ... any processes related to these systems . The Senior Systems Administrator will Configure...in accessing and using IT systems + Provide Tier 1 (Help… more
    CACI International (09/25/25)
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  • Senior Specialist Systems

    L3Harris (Springfield, VA)
    …Job Title: Senior Specialist, Systems Engineering - Information Technology Senior Systems Administrator (Active TS/SCI w/ CI Poly Required) Job ... (100% Onsite) Job Description: L3Harris Technologies is seeking an experienced Information Technology Senior Systems Administrator or Mid-to- Senior Level… more
    L3Harris (09/04/25)
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  • Senior Systems Administrator

    General Dynamics Information Technology (Reston, VA)
    …** Transform technology into opportunity as a Senior Systems Administrator with GDIT. A career in enterprise IT means connecting and enhancing ... part in improving how agencies operate. **The job duties of the Sr. Systems Administrator are as follows:** + Plans, designs, and implements infrastructure… more
    General Dynamics Information Technology (10/01/25)
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  • Senior Linux Systems

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Senior Linux Systems Administrator ** in our **National Security Sector's (NSS) Cyber & ... in National** **Security!** Join our team as a **Linux Systems Administrator ** , where you'll provide crucial...+ **User Assistance:** Assist users in accessing and using IT systems , providing support for escalated tickets… more
    Leidos (09/26/25)
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  • Senior IT Administrator

    CACI International (Alexandria, VA)
    Senior IT Administrator and...problem-solving skills in a dynamic environment. * Proficiency in IT systems and willingness to learn new ... (CIO) is searching for a Policy Analyst with experience dealing with Senior Government Officials within DoD CIO, Joint Staff, Military Services, Combatant Commands,… more
    CACI International (09/25/25)
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  • Senior ServiceNow Systems

    SAIC (Annapolis Junction, MD)
    …and any processes related to these systems + Provide support to IT systems including day-to-day operations, monitoring and problem resolution for all ... support for implementation, troubleshooting and maintenance of Information Technology ( IT ) systems + Manage IT ...+ Minimum of 14 years of experience as a Systems Administrator in programs and contracts of… more
    SAIC (08/07/25)
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  • Senior Windows Systems

    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 ... Required Qualifications: + Experience: Minimum of 10 years in systems administration and IT infrastructure leadership +...of 10 years in systems administration and IT infrastructure leadership + Education: Master's degree OR Bachelor's… more
    Black Bear Technology Solutions, LLC (08/23/25)
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  • Senior Linux Systems

    ManTech (Chantilly, VA)
    **MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA** This opportunity allows you to become ... drive impactful solutions in support of critical government missions. As a ** Senior Linux Systems Administrator ,** you will help maintain and enhance the… more
    ManTech (08/30/25)
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  • Senior Network/ Systems

    GovCIO (Washington, DC)
    **Overview** GovCIO is currently hiring for a Senior Network/ Systems Administrator with an active Secret clearance. This position will be located in ... USD $112,500.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/4892/ senior -network- systems - administrator /job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-Remote_ **ID** _2024-4892_… more
    GovCIO (10/08/25)
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  • Senior Systems Administrator

    Competitive Range Solutions, LLC (Fort Meade, MD)
    …high-risk critical issues. + Maintain extensive knowledge of diverse IT systems and network architectures, including high-volume/high-availability ... partners with the government to plan and deploy complex, IT -enabled, and mission-essential capabilities. Our goal is to help...in a collaborative, congenial environment. We are seeking a Senior System Administrator to lead the management,… more
    Competitive Range Solutions, LLC (08/07/25)
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  • Senior Systems Administrator

    SAIC (Arlington, VA)
    **Description** SAIC is seeking a motivated, career and customer-oriented ** Senior Systems Administrator ** to join our team in Arlington, VA, supporting the ... as Networks, Servers, Storage Area Networks, systems management, directory systems , Public Key Infrastructure, IT customer support and training, computer… more
    SAIC (09/26/25)
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  • Senior Systems Administrator

    SAIC (Fort Meade, MD)
    …can** **grow your career in a dynamic and supportive environment!** The Systems Administrator (SA) will provide support for implementation, troubleshooting, and ... identification, diagnosis, and resolution of problems + Provide support to IT systems include day-to-day operations, monitoring and problem resolution for all of… more
    SAIC (08/19/25)
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  • Senior Systems Administrator

    Leidos (Vienna, VA)
    **Description** The National Security Sector at Leidos is seeking a ** Senior System Administrator ** to join a dynamic team based in **Tysons Corner, VA** . This ... while supporting a small team responsible for managing a wide range of mission-critical systems . **Key Details** : + Work hours fall within the core shift range of… more
    Leidos (07/29/25)
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  • Senior Systems Administrator

    Huntington Ingalls Industries (Hanover, MD)
    Systems (WS), a business group within HII's Mission Technologies division. Warfare Systems comprises cyber and mission IT ; electronic warfare; and C5ISR ... HII, is seeking a highly motivated and experienced System Administrator to join our Minotaur team in Hanover, MD....systems and applications + Work closely with corporate IT teams to ensure seamless integration and operation of… more
    Huntington Ingalls Industries (08/27/25)
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