• Senior Network Systems Administrator…

    General Dynamics Information Technology (Fort Bliss, TX)
    …8 + years of related experience **US Citizenship Required:** Yes **Job Description:** Senior Network Systems Administrator - PDA GDIT is seeking highly ... experienced and qualified Senior Network Systems Administrator - Primary Domain...administrative knowledge of Microsoft Server 2019, Red hat Linux , Windows 11, SQLEXPRESS, ESS, ACAS, and Microsoft Hyper… more
    General Dynamics Information Technology (09/27/25)
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  • Senior Information Systems Security…

    RTX Corporation (Richardson, TX)
    …investigations, or Border Patrol + Project or program management, office management, senior administration , or account management **Qualifications We Prefer** + ... that create a safer, more secure world. Our cybersecurity team is seeking a ** Senior Information Systems Security Officer (ISSO) II** to support our team **100%… more
    RTX Corporation (08/29/25)
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  • Professional Services Consultant - Email Security

    Proofpoint (Houston, TX)
    …technical relationships. This is a highly technical role and deep knowledge of the Linux and Solaris operating systems and network configuration is required, as ... enterprise customers. The role will demand interaction with large scale enterprises at senior levels, as well as with technical staff within the traditional IT… more
    Proofpoint (09/13/25)
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  • Senior Manager of Software Engineering…

    Capital One (Plano, TX)
    Senior Manager of Software Engineering (DevOps) Do you love...Platform) + At least 6 years of Unix or Linux system administration experience + At least 4 ... experience in machine learning, distributed microservices, and full stack systems + Share your passion for staying on top...be regularly worked. McLean, VA: $225,400 - $257,200 for Sr . Mgr, Software Engineering Plano, TX: $204,900 - $233,800… more
    Capital One (09/19/25)
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  • Information System Security Engineer…

    Amentum (San Antonio, TX)
    …If so, look no further. Amentum is seeking an Information System Security Engineer - Senior to join our team of passionate individuals in San Antonio, TX. In this ... voice, video, and data, global communications network that facilitates collaboration among senior leaders and key staff. The Lone Wolf program boasts a professional… more
    Amentum (08/29/25)
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  • 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 ... growth and progress together. The Info Sec Tech Lead Analyst is a senior level professional position responsible for driving efforts to prevent, monitor and respond… more
    Citigroup (08/23/25)
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  • Infrastructure Senior Technology Analyst…

    Citigroup (Irving, TX)
    …come join us. We'll enable growth and progress together. The Infrastructure Senior Technology Analyst is an intermediate level role responsible for assisting with ... LAN / WAN and help desk administration activities, including network maintenance, technical guidance, and security in coordination with the Technology Infrastructure… more
    Citigroup (09/02/25)
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  • Senior Software Engineer, Performance…

    Red Hat (Austin, TX)
    …container orchestration platforms like Kubernetes or Red Hat OpenShift. + Solid Linux system administration and engineering skills, with a good understanding ... and Scale Engineering team is looking for an experienced Senior Software Engineer, Performance and Scale to join our... Software Engineer, you will leverage your knowledge of systems , networking and hardware performance to theorize bottlenecks and… more
    Red Hat (10/01/25)
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  • Network Support Technician - Senior…

    General Dynamics Information Technology (Killeen, TX)
    …and garrison sites + Perform server and desktop installation, basic cabling + Perform systems administration of desktop and server systems connected to local ... **US Citizenship Required:** Yes **Job Description:** **Network Support Technician - Senior - TS/SCI required** Make meaningful contributions that fuel critical… more
    General Dynamics Information Technology (09/16/25)
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  • Senior Information Security Engineer:…

    Jack Henry & Associates (Allen, TX)
    …least one major cloud platform (GCP, AWS, or Azure). + Strong background in Linux administration and a deep understanding of command-line tools and scripting. ... Senior Information Security Engineer to join our growing Systems Security team. The Systems Security team...PowerShell, or other scripting automation tools. + Experience with Linux , Git, Jenkins. + CISSP, GIAC, or CCSP certification.… more
    Jack Henry & Associates (09/18/25)
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