• Senior Administrator

    Intercontinental Exchange (ICE) (Atlanta, GA)
    Overview **Job Purpose** The Senior Systems Administrator is responsible for maintaining the availability, security , and performance of Windows and Linux ... resolving system performance and availability issues. The Senior Systems Administrator also assists...systems comply with IT policies and adhere to security standards. **Knowledge and Experience** + Proficiency in managing… more
    Intercontinental Exchange (ICE) (12/23/25)
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  • Senior System Administrator

    Amentum (Springfield, VA)
    Security , & Intel space? If so, look no further. Amentum is seeking a ** Senior System Administrator ** to join our team of passionate individuals in ... new and existing systems including the transition and migration of corporate systems * Monitor and report on system health using various dashboarding tools… more
    Amentum (11/20/25)
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  • Senior Systems Administrator

    ManTech (Fairmont, WV)
    **MANTECH** seeks a motivated and customer-oriented ** Senior Systems Administrator - Windows/Linux Dual-Stack Specialist** to join our team in **Boulder, ... Active Directory environments. + Senior -level experience with Linux system administration, networking, security hardening, and scripting/automation tools. +… more
    ManTech (11/05/25)
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  • Senior Windows Systems

    Adapt Forward (North Charleston, SC)
    Systems Administrator IV, Senior Windows Systems Administrator North Charleston, SC Secret Clearance with upgrade to Top Secret As a Windows ... System Administrator , you will play an integral...System Administrator , you will play an integral role on the...user desktop machines and servers. You will focus on systems and application stability, security , performance, and… more
    Adapt Forward (12/17/25)
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  • Senior Information Systems

    Concurrent Technologies Corporation (Huntsville, AL)
    Senior Information Systems Administrator Concurrent Technologies Corporation Huntsville, AL Minimum Clearance Required: Top Secret Clearance Clearance Level ... with up-to-the-minute, customized, and powerful solutions. CTC is looking for talented Senior Information System Administrator with experience accrediting,… more
    Concurrent Technologies Corporation (10/19/25)
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  • Senior Linux System

    Parsons Corporation (Aberdeen, MD)
    …**Job Description:** _Parsons is looking for an amazingly talented_ **_Senior Linux Systems Administrator_** _to join our team!_ **_What You'll Be Doing:_** + ... _Support the system administration for ARL high performance computers_ + _Support..._Support design of Army Research Laboratory A2I2 building for systems being delivered in 2024 and future platforms_ +… more
    Parsons Corporation (11/15/25)
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  • Senior Systems Administrator

    Amentum (Waimea, HI)
    Amentum is seeking a highly experienced Senior Linux System Administrator to oversee and manage enterprise-level Linux infrastructure in support of US Navy ... environment. This role requires deep technical expertise in Linux systems , leadership in secure system administration, and...Certifications required + Linux + Linux+ Red Hat Certified System Administrator (RHCSA) ** Security Clearance**… more
    Amentum (12/24/25)
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  • Senior SIGINT Systems

    CACI International (Beale AFB, CA)
    Senior SIGINT Systems Administrator ... administration for assigned infrastructure and establish and maintain system security . You will also apply ... * * The Opportunity: CACI is seeking a SIGINT Systems Administrator and Sensor Resource Manager Subject...security patches and operating system upgrades to ensure the security and… more
    CACI International (12/12/25)
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  • Senior Windows Systems

    Leidos (Arlington, VA)
    …Requires an current 8140 IAT Level II (Intermediate or Advanced) certificate (CompTIA Security + or Systems Security Certified Practitioner (SSCP) ) Training ... & Windows DFS Shares. + Implement and maintain robust system hardening techniques using security compliance tools...(DISA-US1390 DCWF Windows Systems Administrator ). + Expert knowledge of Windows… more
    Leidos (01/07/26)
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  • Automation/CPE: Security Systems

    M. C. Dean (Fremont, CA)
    …technical leaders in electrical, engineering, and cybersecurity industries. Responsibilities **The Security Systems Application Specialist 2 (Sys Admin 2)** is ... technologies related to access control, intrusion detection, emergency, video, and other security systems . + Document daily functions and troubleshooting process… more
    M. C. Dean (12/26/25)
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