• Senior Information Security System Engineer…

    Citigroup (Irving, TX)
    …**Qualifications:** + 6+ years of relevant experience + BS/CS - or equivalent experience + Administration of Linux and Splunk + Strong understanding of Linux ... data security policy. **Responsibilities:** + Integrate new, complex security systems into the existing infrastructure. + Ensure the confidentiality, integrity,… more
    Citigroup (08/23/25)
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  • System Administrator

    TekSynap (Arlington, VA)
    …QUALIFICATIONS** + Bachelor's degree in IT, Computer Science, or related. + 5+ years system administration ( Linux /Windows) in hybrid or cloud environments. + ... IAT Level II (Security+ CE minimum). + Active Secret clearance. **COMPETENCIES** + System provisioning & administration ( Linux /Windows) + CNCF ecosystem… more
    TekSynap (10/02/25)
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  • DevOps Cloud Engineer

    System One (Alexandria, VA)
    …solutions. A successful candidate will have experience with installation, configuration, administration , support, and maintenance of cloud-based systems and ... experienced DevOps Cloud Network Engineer to work on cloud-based systems with a mission operations team. The team is...Cloud Network Engineer will take a leadership role in system changes and improvements; working directly with government and… more
    System One (09/27/25)
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  • System Administrator

    Two95 International Inc. (Oklahoma City, OK)
    Linux Deployments (BUZZ: Redhat\RHEL, CentOS) + Light knowledge in the following + Linux administration + IIS and PHP deployments and functionality + Puppet ... Title: Systems Administrator Location: Oklahoma City, OK Duration: Full...Container Technologies (BUZZ: Azure Stack, Kubernetes, Docker) + Windows Administration \Deployments (BUZZ: Windows Server 2012 and newer) + … more
    Two95 International Inc. (09/08/25)
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  • Senior System Administrator

    RTX Corporation (Springfield, VA)
    …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...its national security strategy. This is for an on-site system administrator sustaining and maintaining a VM-based data … more
    RTX Corporation (09/26/25)
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  • Systems Engineer Engineer II - Cyber…

    RTX Corporation (Portsmouth, RI)
    …various operating systems + Experience with IT and/or network and system security administration , including building virtual machines, operating system ... customer to define SSE requirements, solutions, trades, costs, implementation, system impacts, and effectiveness + Maintain a Risk Management...best practices for UNIX, MS Windows, Red Hat Enterprise Linux , and Cisco systems + Linux more
    RTX Corporation (08/30/25)
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  • Systems Engineer

    ManTech (Annapolis Junction, MD)
    …IT infrastructure by utilizing expert-level knowledge of the Linux operating system , along with deep expertise in server administration , virtualization, and ... complex technical issues. + A foundational understanding of traditional Systems Administration principles **Clearance Requirements:** + TS/SCI **Physical… more
    ManTech (08/20/25)
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  • System Administrator (Mid-Senior Level)

    Robert Half Technology (Charlotte, NC)
    …mentor junior IT staff. Requirements Qualifications: + 5+ years of hands-on system administration experience. + Strong expertise in Windows Server ... Description About the Role: Robert Half is proactively recruiting experienced System Administrators for upcoming opportunities with our clients across diverse… more
    Robert Half Technology (09/18/25)
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  • Systems Administrator II (Active Secret…

    NANA Regional Corporation (Vandenberg AFB, CA)
    … (database, maintain system readiness) + Performs all required systems administration on mission related equipment + Conducts TEMPEST management- ... an active CompTIA Security Plus certification + 3 or more years of Linux /Windows administration experience + Experience interfacing with Military personnel and… more
    NANA Regional Corporation (10/02/25)
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  • System Administrator

    Robert Half Technology (Orlando, FL)
    …operations. Key Responsibilities + Install, configure, and maintain servers, operating systems , and applications. + Monitor system performance, troubleshoot ... and reliability. + Manage user accounts, permissions, and access rights across systems and applications. + Perform regular system updates, patches, and… more
    Robert Half Technology (09/16/25)
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