• Senior Systems Engineer

    Leidos (Chantilly, VA)
    …_Redundancy & Project Support_ + Serve as the operational backup for the senior systems engineer. + Participate in infrastructure and system upgrade projects. ... + Maintain and troubleshoot Linux (Rocky, CentOS, Debian) and Windows Server environments. + Apply security updates and configuration...lieu of degree. + 3-5 years of experience in systems administration or infrastructure engineering roles. +… more
    Leidos (08/15/25)
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  • Senior Systems Engineer

    GovCIO (Fairfax, VA)
    **Overview** GovCIO is currently hiring for a Senior Systems Engineer with an active Secret clearance to provide administration and tier 3 operational ... USD $165,000.00 /Yr. Submit a referral to this job (https://careers-govcio.icims.com/jobs/6349/ senior - systems -engineer/job?mode=apply&apply=yes&in\_iframe=1&hashed=-1834385473) **Location** _US-VA-Fairfax_ **ID** _2025-6349_ **Category** _IT… more
    GovCIO (08/02/25)
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  • Principal Cyber Security Systems Engineer

    ManTech (Chantilly, VA)
    …including Juniper, Cisco, F5, and similar platforms + Administering and troubleshooting Windows , Linux, and vendor appliance-based systems to ensure high ... MANTECH seeks a motivated, career-driven **Principal Cyber Security Systems Engineer** to join our team in **Chantilly,...Kibana) and containerization (Docker, Kubernetes) + Skilled in both Windows and Linux administration + Proficient in… more
    ManTech (08/29/25)
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  • Systems Administrator - Senior

    Amentum (Warrenton, VA)
    …voice, video, and data, global communications network that facilitates collaboration among senior leaders and key staff. The Lone Wolf program boasts a professional ... include, but are not limited to, the following: + Administer and maintain Windows server environments, including Active Directory, DNS, DHCP, and Group Policy +… more
    Amentum (09/25/25)
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  • Senior IT Systems Engineer

    ManTech (Chantilly, VA)
    …including documentation required for A&A IAW ICD 503. + Experience with Windows administration , Active Directory, administrative scripting languages, and ... **MANTECH** seeks a motivated, career and customer-oriented ** Senior IT Systems Engineer** to join our team in **Chantilly, VA.** **Responsibilities include but… more
    ManTech (08/20/25)
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  • Senior Systems Administrator…

    General Dynamics Information Technology (Quantico, VA)
    …Citizenship Required:** Yes **Job Description:** Transform technology into opportunity as a ** Senior Systems Administrator** with GDIT. A career in enterprise IT ... or suspected criminal, terrorism, sabotage, espionage and subversive activities. **HOW OUR SENIOR SYSTEMS ADMINISTRATOR WILL MAKE AN IMPACT:** + Administer,… more
    General Dynamics Information Technology (08/09/25)
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  • Senior Systems Administrator

    Leidos (Vienna, VA)
    …Skills desired:** + Familiarity with common industry software tools, concepts, and systems administration + Familiarity with Data management, Data integration, ... The National Security Sector at Leidos is seeking a ** Senior System Administrator** to join a dynamic team based...opportunity allows you to apply your expertise in system administration and software programming while supporting a small team… more
    Leidos (07/29/25)
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  • Senior Electronic Security Services…

    AECOM (Alexandria, VA)
    …VA** . The selected candidate will work on large-scale video management systems , server administration , and system integration in transit environments. They ... detection and alarm systems + - Emergency communication and intercom systems + Administer and maintain Windows Server environments including clustered and… more
    AECOM (09/19/25)
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  • Development Operations Specialist, Senior

    CGI Technologies and Solutions, Inc. (Arlington, VA)
    …management experience (2 yrs.) * Operating Systems : Strong knowledge of Windows and/or Linux server administration . * Networking: Understanding of network ... **Development Operations Specialist, Senior ** **Category:** Project Management **Main location:** United States,...like Jenkins, Git, and other CI/CD technologies. * System Administration : Experience configuring with servers ( Windows , Linux),… more
    CGI Technologies and Solutions, Inc. (09/06/25)
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  • Senior Systems Engineer, AWS Managed…

    Amazon (Herndon, VA)
    …and efficiency to operate AWS Regions. Amazon is looking for highly motivated Senior Systems Engineers who can balance the day-to-day operations of AWS' ... the forefront. Basic Qualifications - 8+ years of relevant systems engineering, or systems administration ...Site Reliability Engineering (SRE) or Enterprise Production experience in Windows / Linux or similar environments - 3+ years'… more
    Amazon (09/09/25)
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