• AeroVironment (Arlington, VA)
    …**Job Description** **Job Summary:** The primary role of the Linux System Administrator is to support the full life-cycle management of 24x7 mission-focused ... This role is responsible for the day-to-day operations of deployed systems , including monitoring, auditing, log review, maintenance, troubleshooting, and after-hours… more
    DirectEmployers Association (12/24/25)
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  • Dentons US LLP (Washington, DC)
    Senior Enterprise Messaging Administrator Chicago, IL, USSt. Louis, MO, USKansas City, MO, USWashington DC, DC, USDenver, CO, USAtlanta, GA, USDallas, TX, US Dec ... 12, 2025 ** Senior Enterprise Messaging Administrator ** Dentons US LLP...the latest applications, technologies, and their integration into existing systems , ensuring optimal performance and reliability. **Responsibilities:** + Lead… more
    DirectEmployers Association (12/13/25)
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  • Infinity Systems Engineering (Alexandria, VA)
    …- now, come be more with us! Job Summary: We are seeking a skilled Systems Administrator /Network Engineer to join our mission-driven team. This position offers a ... expertise, initiative, and experience supporting a mix of network and systems engineering and administration tasks. Key Responsibilities: Network Design &… more
    DirectEmployers Association (11/25/25)
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  • AeroVironment (Herndon, VA)
    …**Job Description** **Summary** The Service Desk Technician III is a member of the IT Service Desk team and serves as the highest technical escalation point for ... role is responsible for resolving highly complex issues across multiple systems , mentoring junior staff, leading process improvement initiatives, and ensuring the… more
    DirectEmployers Association (01/06/26)
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  • Red River (Chantilly, VA)
    …you seek to make those around you successful. We are looking for a ** Systems Support Engineer I** to join our fast-paced, customer-first global service desk team. ... calls and assigned tickets from users experiencing challenges with systems , applications, and infrastructure. Whether working independently or collaboratively, your… more
    DirectEmployers Association (11/26/25)
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  • Tyto Athene (Ashburn, VA)
    …+ Strong experience in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems ... plan, coordinate, and execute logging-related initiatives across interconnected and heterogeneous systems . + Administer and optimize enterprise IT applications… more
    DirectEmployers Association (11/01/25)
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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 (12/03/25)
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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 (01/05/26)
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  • Senior Systems Administrator

    BAE Systems (Washington, DC)
    …Other incentives may be available based on position level and/or job specifics. ** Senior Systems Administrator ** **118971BR** EEO Career Site Equal ... **Job Description** BAE Systems is seeking **System Administrators** to join our...providing a comprehensive set of System/ Software Engineering and IT Services to maintain, sustain, enhance, and improve/modernize. The… more
    BAE Systems (12/04/25)
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  • G2 Directory Services Engineer / Senior

    General Dynamics Information Technology (Fairfax, VA)
    …**Job Description:** Transform technology into opportunity as a **Directory Services Engineer / Senior Systems Administrator ** at GDIT. Shape what's next for ... Our work depends on a **Directory Services Engineer / Senior Systems Administrator ** joining our...centers. + Installs, configures and maintains virtual hosts, operating systems , applications and databases. + Documents IT more
    General Dynamics Information Technology (01/05/26)
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  • Senior Linux Systems

    Leidos (Arlington, VA)
    …Training (DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows Systems Administrator ). + 3+ years deploying Unix in secured environments, ... Leidos Digital Modernization Sector is seeking a **_Senior Linux Systems Administrator_** in support of the Air Force National...our critical Red Hat Enterprise Linux environment. As a Senior System Administrator , you'll be instrumental in… more
    Leidos (12/20/25)
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  • Lead Senior Systems

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

    Leidos (Arlington, VA)
    Systems Security Certified Practitioner (SSCP) ) Training (DISA-US1390 DCWF Windows Systems Administrator ). + Expert knowledge of Windows Active Directory ... Leidos Digital Modernization Sector is seeking a **_Senior Windows Systems Administrator_** in support of the Air Force National...in support of the Air Force National Capital (AFNCR) IT Services program. This position is located at The… more
    Leidos (01/07/26)
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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 (11/21/25)
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  • Senior Database Administrator

    BAE Systems (Washington, DC)
    …Coordinates with IT teams to integrate database solutions within broader systems + Keeps current with emerging database technologies and trends to drive ... Security, CISA, CISSP, or GSEC + Bachelors degree in IT , Cybersecurity, Computer Science, Information Systems , Data...be available based on position level and/or job specifics. ** Senior Database Administrator ** **118979BR** EEO Career Site… more
    BAE Systems (12/04/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …maintain a Counterintelligence (CI) Polygraph. The Senior Systems Administrator II shall support the Information Technology ( IT ) Operations and ... integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist...with the activity's Senior Systems Administrator , Network Engineer as well as the IT more
    V2X (11/15/25)
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  • Senior Systems Administrator

    ManTech (Washington, DC)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior Systems Administrator ** to join our team in **Washington** **, DC** . **Responsibilities ... desktops, Multi-Function Print devices, video teleconference hardware, and various other IT assets. **Minimum Qualifications:** + Minimum of five (5) years of… more
    ManTech (12/31/25)
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  • 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 ... limited to:** + Provide hands-on O&M support for enterprise systems , including break-fix resolution and routine sustainment tasks +...of a degree + 5+ years of experience in IT , O&M, sustainment, and/or break-fix support + Demonstrated experience… more
    ManTech (12/13/25)
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  • Senior System Administrator

    St. George Tanaq Corporation (Suitland, MD)
    Senior System Administrator - Network Security WFH Flexible*Suitland, MD (http://maps.google.com/maps?q=Suitland+MD+USA) Job Type Full-time Description ... about us, visit https://tanaq.com/tanaq-technical-services. **About the Role** We are seeking a ** Senior System Administrator - Network Security** to support our… more
    St. George Tanaq Corporation (11/18/25)
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  • ServiceNow Portal Administrator

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    **ServiceNow Portal Administrator , Senior ** **Category:** Infrastructure/Cloud **Main location:** United States, Virginia, Arlington **Position ID:** J0925-2136 ... Description:** CGI Federal has an exciting opportunity for a ServiceNow Portal Administrator within our Intel sector advancing the national security mission through… more
    CGI Technologies and Solutions, Inc. (01/01/26)
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