• Principal Linux Architect- AHT

    Northrop Grumman (Huntsville, AL)
    …today. this position is contingent upon funding/award** **Job Duties:** + Perform as Linux Systems Administrator for a large, classified government ... environment. + Experience implementing STIGs (Security Technical Implementation Guides) on Linux systems . + General Linux troubleshooting experience. + End… more
    Northrop Grumman (07/19/25)
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  • Principal System Administrator

    RTX Corporation (Tucson, AZ)
    …are eligible for a security clearance​ **Security Clearance:** DoD Clearance: Secret ** Principal System Administrator - 100% onsite, Tucson, AZ must have ... of our systems and support IT infrastructures around the world. ** Principal System Administrators** , internally known as Principal Analyst, infrastructure… more
    RTX Corporation (08/08/25)
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  • Sr. Principal NetApp Storage…

    Northrop Grumman (Linthicum Heights, MD)
    …will include but not be limited to the following: + Serve as a systems administrator with shared responsibility for the effective maintenance and operational ... Office (CIDO) organization is seeking a senior NetApp Storage Administrator with expertise in NetApp storage management to join...scanning tools and remediation. + Experience deploying and managing Linux systems (preferably Red Hat) in both… more
    Northrop Grumman (07/18/25)
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  • Principal Windows System…

    RTX Corporation (El Segundo, CA)
    …citizens are eligible for a security clearance​ **Security Clearance:** TS/SCI with Polygraph ** Principal Windows Systems Administrator - El Segundo, CA -Must ... tough, meaningful problems that create a safer, more secure world. ** Principal System Administrator ** in infrastructure Workplace Services, collaborates with… more
    RTX Corporation (07/11/25)
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  • Sr. Principal Backup and Storage System…

    RTX Corporation (Plano, TX)
    …for a security clearance​ **Security Clearance:** DoD Clearance: Top Secret **Sr. Principal Backup and Storage System Administrator Plano, TX, 100% on-site, ... problems. **What You Will Do** : + Provide IT systems administration in a heterogeneous Microsoft Windows and Redhat...administration in a heterogeneous Microsoft Windows and Redhat Enterprise Linux environment. + Linux Server management to… more
    RTX Corporation (07/10/25)
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  • Sr. Principal SharePoint and Exchange…

    RTX Corporation (Plano, TX)
    …**Security Clearance:** DoD Clearance: Top Secret **SharePoint and Exchange System Administrator - P4 Plano, TX. Must have active Top-Secret clearance, 100% on ... through business innovation, technical proficiency, and operational excellence. **Sr. Principal Backup and Storage System Administrators** collaborates with many… more
    RTX Corporation (07/09/25)
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  • Principal System Administrator

    RTX Corporation (Tucson, AZ)
    …US citizens are eligible for a security clearance. + Experience with Windows and/or Linux Server Operating Systems (OS) **Qualifications We Prefer:** + A good ... for a security clearance​ **Security Clearance:** DoD Clearance: Secret **_Principal System Administrator Tucson, AZ, must have an active secret clearance, 100% on… more
    RTX Corporation (08/08/25)
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  • Sr. Principal Systems

    RTX Corporation (Tucson, AZ)
    …US citizens are eligible for a security clearance. + Experience supporting Windows and/or Linux operating systems . + Experience with but not limited too, Active ... secure world. **What You Will Do:** + Experience with Linux architecture, deployment, administration, networking, performance monitoring/tuning, security hardening,… more
    RTX Corporation (08/02/25)
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  • Senior Principal System…

    RTX Corporation (Mckinney, TX)
    systems administration and networking administration experience, Windows or Linux administration, Windows administration, or Mac OS experience, backup, and ... + Supervising administrators whose duties may include setting up administrator and service accounts, maintaining system documentation, tuning system performance,… more
    RTX Corporation (07/29/25)
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  • Senior / Principal Windows System…

    SciTec (Beavercreek, OH)
    …will not be considered. SciTec has an immediate opportunity for a talented Senior Principal Windows System Administrator to join our team in Dayton, OH, or ... clear focus on supporting customer needs. Responsibilities + Provide Windows systems administration in multiple heterogeneous Microsoft Windows and Red Hat… more
    SciTec (07/24/25)
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