• Senior System Administrator

    RTX Corporation (Springfield, VA)
    …eligible for a security clearance. + Minimum Security+ DoD 8570 certification. + System administration across Linux systems . + Experience in the Intelligence ... create a safer, more secure world. Raytheon seeks a Systems Administrator to join a high-performing team at the...ability in strong customer support. + Red Hat Enterprise Linux Certifications: RHCT or RHSA. What We Offer +… more
    RTX Corporation (09/26/25)
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  • Senior Platform Engineer

    BlueCross BlueShield of Tennessee (Chattanooga, TN)
    …support them\)\. Our ideal candidates will come with expertise in **Windows and Linux ** systems administration along with hands\-on experience in **Ansible** ... **BlueCross BlueShield of Tennessee** is hiring a ** Senior Platform Engineer\.** In this **fully remote** role, you'll ensure the performance, security and… more
    BlueCross BlueShield of Tennessee (10/02/25)
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  • Senior Consultant, Offensive Security,…

    Palo Alto Networks (Washington, DC)
    …internal processes and engagements + Conducts IT application testing, cybersecurity tool and systems analysis, system and network administration , and systems ... personalized learning opportunities - just to name a few! **Your Career** The Senior Consultant on the Offensive Security team is focused on assessing and… more
    Palo Alto Networks (09/05/25)
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  • Senior Site Reliability Engineer, DGX Cloud

    NVIDIA (CA)
    …one high-level programming language (eg, Python, Go) + In-depth knowledge of Linux operating systems , networking fundamentals (TCP/IP), and cloud security ... infrastructure. Work with NVIDIA's DGX Cloud team as a Senior Site Reliability Engineer to maintain high-performance DGX Cloud...AWS, GCP, Azure, OCI, and private clouds + Scale systems sustainably through mechanisms like automation and evolve … more
    NVIDIA (08/30/25)
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  • Senior Storage Engineer-CEPH

    ManpowerGroup (New York, NY)
    …experience with Ceph and the Ceph file system. + Advanced knowledge of Linux system administration and performance monitoring. + Ability to communicate technical ... Our client, in higher education , is seeking a Senior Storage Engineer-CEPH to join their team. As a...+ Monitor and troubleshoot performance issues with the file systems , clients, or the underlying infrastructure. + Integrate Ceph… more
    ManpowerGroup (07/15/25)
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  • Senior M365 Administrator

    PSEG Long Island (Bethpage, NY)
    …and corrective action plans. Responsible for the day-to-day administration , technical support, troubleshooting, maintenance, upgrades, patching, performance and ... variety of cyber security tools within a Microsoft Windows, Linux and UNIX server environments. This role will manage...and manage Microsoft 365 solutions, including migration from on-premises systems to the cloud * Provide Tier 2 support… more
    PSEG Long Island (10/01/25)
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  • Senior System Administrator (MSO)

    General Dynamics Information Technology (Livermore, CA)
    …DoD 8570 Compliant Certifications are required **Desired Qualifications** + Experience with Linux and Windows system administration and networking background is ... of related experience **US Citizenship Required:** Yes **Job Description:** ** Systems Administrator/Mission Support Operator -** **$10K Sign-on bonus** *Classified… more
    General Dynamics Information Technology (09/20/25)
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  • System Engineer (TS/SCI)- Senior or Mid…

    Vexterra Group (Bethesda, MD)
    …+ Experience with hardening Windows environments + Significant experience with system administration of server operating systems such as Microsoft Server (2012 ... Azure cloud services and the cloud ecosystem. + Experience operating and maintaining systems in a Linux environment + Certification relating to Microsoft… more
    Vexterra Group (07/15/25)
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  • Unix IA Ops Systems Administrator

    SMX (Patuxent River, MD)
    …primarily focused on Information Assurance (IA) compliance and security operations for Unix/ Linux systems across Department of Defense (DoD) networks. The ... implementation, audit preparation, and remediation tracking, while also supporting baseline Unix/ Linux administration tasks as needed. **Essential Duties &… more
    SMX (10/01/25)
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  • Senior Integration Platform Engineer

    MetLife (Cary, NC)
    …modern technologies such as OpenShift, Ansible, Cloud/Azure * Knowledge of operating systems ( Linux , AIX, zLinux, iSeries, Windows) * Hands-on experience ... The Opportunity: The Senior Integration Platform Engineer researches new technologies to...science * Design and implementation best practices and hands-on administrative experience with at least two of the following… more
    MetLife (09/17/25)
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