• Washington Metropolitan Area Transit Authority (Washington, DC)
    …role in ensuring secure, reliable, and compliant system configurations for all Windows operating systems and endpoint devices. The position is central to ... to Windows desktop computers, servers and end-user devices. The System Configuration Management Administrator diagnoses and corrects performance problems.… more
    DirectEmployers Association (12/04/25)
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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 is currently recruiting for a Senior Enterprise Messaging Administrator . This position will… 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 ... secure, and troubleshoot Juniper and Cisco switches. + Perform systems administration on Windows and Linux platforms...experience is a plus) + Proficient in Linux and Windows system administration + Active CompTIA Security+… more
    DirectEmployers Association (11/25/25)
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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 ... . + Administer and optimize enterprise IT applications and systems in Windows and Linux environments. +...Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
    DirectEmployers Association (11/01/25)
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  • Red River (Chantilly, VA)
    …technical issues on end-user laptops, including both Windows and macOS systems , with a solid understanding of operating system behavior, user profiles, ... 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.… more
    DirectEmployers Association (11/26/25)
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  • Tyto Athene (Reston, VA)
    …both defensive and mission cyber considerations + Serve as Technical Lead and administrator for TALON Data Center and TALON lab IT infrastructure + Maintain data ... **Required:** 10+ years of experience with: **Core infrastructure operations:** Windows /Linux, virtualization, storage, backups, and disaster recovery-standardized via infrastructure-as-code… more
    DirectEmployers Association (12/13/25)
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  • Windows Administrator

    GovCIO (Washington, DC)
    …date. + Experience in Computer Science or IT. + 5+ years' experience as a Windows Systems Administrator or Engineerwith 3+ years' experience in automating ... remote position. **Responsibilities** This position is for a Senior Systems Administrator supporting the Windows ...environment. This position will plan, execute, and implement new system HW and SW and create and maintain team… more
    GovCIO (09/24/25)
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  • Windows System Administrator

    Link Solutions Inc (Adelphi, MD)
    …and appraised for CMMI ML3 for Services and Development. Link Solutions is seeking a Windows System Administrator (Senior-Level) to join our team at Adelphi, ... an active DoD Top Secret Clearance + Non-remote (relocation incentive available) The Windows System Administrator (Senior-Level) will be responsible for the… more
    Link Solutions Inc (10/08/25)
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  • Senior Windows Systems

    Black Bear Technology Solutions, LLC (Adelphi, MD)
    …Secret Clearance Locations: Adelphi, MD Position Overview: The Senior Windows Systems Administrator leads complex system administration and endpoint ... Senior Windows Systems Administrator Clearance...aligning technology with organizational goals. Key Responsibilities: + Lead system administration activities across ARLEN and CARLEN networks. +… more
    Black Bear Technology Solutions, LLC (11/21/25)
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  • Windows System Administrator

    ManTech (Laurel, MD)
    …vendors to deliver select EIT. MANTECH is seeking a motivated, career and customer-oriented ** Windows ** ** System Administrator ** to join our team in Laurel, ... the DoD Certification/ Accreditation process + Ability to install Windows software and hardware applications; upgrade systems ...for a degree + 15+ years' experience as a Systems Administrator in programs and contracts of… more
    ManTech (12/17/25)
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  • Systems Administrator II Generalist…

    V2X (Springfield, VA)
    …challenges with integrity, respect, responsibility, and professionalism. We are hiring a Senior Systems Administrator II Generalist - Windows Server - active ... 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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  • Senior Linux Systems Administrator

    Leidos (Arlington, VA)
    …+ Training (DISA-US1384 DCWF Linux System Administrator / DISA-US1390 DCWF Windows Systems Administrator ). + 3+ years deploying Unix in secured ... of our critical Red Hat Enterprise Linux environment. As a Senior System Administrator , you'll be instrumental in designing, implementing, and maintaining… more
    Leidos (12/20/25)
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  • Window System Administrator

    ManTech (College Park, MD)
    **MANTECH** seeks a motivated, career and customer-oriented ** Windows ** ** Systems Administrator ** to join our team in **College Park, Maryland** . The ... position is part of a team that provides Windows Systems Administration support for an organization...and performance enhancements. **Minimum Qualifications:** + 8+ years of System Administration experience + Proficiency in Windows more
    ManTech (10/14/25)
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  • Windows Systems Adminsitrator

    ManTech (Chantilly, VA)
    **MANTECH** seeks a skilled and motivated ** Windows Systems Administrator ** to join our team of top Information Technology and Analytic professionals in ... 7+ years of relevant experience with Windows systems + Experience with complex system architectures...Windows systems + Experience with complex system architectures and interconnected data environments + Hands-on experience… more
    ManTech (12/03/25)
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  • Senior System Administrator

    St. George Tanaq Corporation (Suitland, MD)
    Senior System Administrator - Network Operation Center WFH Flexible*Suitland, MD (http://maps.google.com/maps?q=Suitland+MD+USA) Job Type Full-time Description ... visit https://tanaq.com/tanaq-technical-services. **About the Role** We are seeking a **Senior System Administrator - Network Operation Center** to support our… more
    St. George Tanaq Corporation (11/14/25)
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  • SharePoint Administrator Expert (SME)…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …processes and systems + Writes and updates project documentation including system procedures, presentations, and training materials + May serve as technical team ... Certification Security+ or equivalent + Required Computing Environment Certification: MCSA Windows Server 2019, Azure Administrator Fundamentals, or equivalent +… more
    General Dynamics Information Technology (10/29/25)
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  • Principal Systems Administrator 4…

    Oracle (Washington, DC)
    …teams. **Requirements:** + Seeking over 10+ years of experience working with Windows , Unix/Linux Servers and system administration + Must have background ... looking for someone who flourishes working in large-scale, distributed systems and is always looking to identify and implement...to understand, debug scripts such as Unix shell scripts, Windows PowerShell, Perl and Python from a system more
    Oracle (11/25/25)
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  • Principal Systems Engineer

    V2X (Springfield, VA)
    …requirements engineering and management, testing and evaluation, and other Systems Engineering (SE) disciplines for successful system /solution development, ... and overall areas for improvement. Identify issues affecting end-to-end performance of systems , provide engineering support to system testing and modeling… more
    V2X (11/25/25)
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  • System Engineer (TS/SCI)- Senior or Mid…

    Vexterra Group (Bethesda, MD)
    Job Description: Vexterra is looking to fill a Windows Systems Engineer and Administrator position within the Analysis Solutions Division (ASD) to support ... + Experience with hardening Windows environments + Significant experience with system administration of server operating systems such as Microsoft Server… more
    Vexterra Group (10/14/25)
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  • Dev Sec Ops Engineer

    Lockheed Martin (Herndon, VA)
    …of the World \- Experience with Chef, Ansible, Gitlab or Docker \- Windows systems administrator experience **Security Clearance Statement:** This position ... Operations teams\) to provide our customers with a secure system and new capabilities\. Candidate is expected to collaborate...\-\- Red Hat Linux \-\- AWS \- Prior Linux systems administrator experience \- Prior experience working… more
    Lockheed Martin (12/06/25)
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