• Senior Defensive Security

    Silvus Technologies (Los Angeles, CA)
    …pathway to a fulfilling career._ THE OPPORTUNITY Silvus is seeking a **_Senior Defensive Security Engineer - Embedded Systems_** who will report to the Director ... on secure boot, and kernel hardening. + Develop and enforce Linux security features, including iptables, netfilter, and auditd for intrusion detection and… more
    Silvus Technologies (10/07/25)
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  • Senior Endpoint Security

    AIG (Dallas, TX)
    …we are reimagining the way we help customers to manage risk. Join us as a Senior Endpoint Security Engineer to play your part in that transformation. It's ... the organization. How you will create an impact The Senior Endpoint Security Engineer will...In depth knowledge and expertise with Infrastructure hardening and Security settings for Windows and Linux . +… more
    AIG (08/27/25)
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  • Senior Information Systems Security

    COLSA Corporation (Huntsville, AL)
    …( Security + CE or higher) + Good verbal and written communication + Linux experience, specifically with security hardening + BASH or other Linux ... systems and networks.* + Manages the full range of security issues including architectures, firewalls, electronic data traffic, and... products. + Work hand-in-hand with the customer and Sr . ISSO/ISSE/ISSMs to navigate through the ATO process and… more
    COLSA Corporation (10/04/25)
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  • Senior Infrastructure Security

    Fiserv (Sunnyvale, CA)
    …and build and manage infrastructure for security -related applications and services.The Senior Security Engineer is a high-visibility role that requires ... scale, come make a difference at Fiserv. **Job Title** Senior Infrastructure Security Engineer Job..., KMS) + 3+ years working with and hardening Linux environments + Experience with IaC / configuration management… more
    Fiserv (10/08/25)
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  • Senior Infrastructure Security

    NVIDIA (Santa Clara, CA)
    NVIDIA is looking for a Sr Infrastructure Security Engineer who will design and implement security best practices for on-premise and cloud access, ... or Shell) for automation, monitoring, and tooling. + Practical experience with Linux . + Solid background in cloud-native security principles (IAM, encryption,… more
    NVIDIA (10/04/25)
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  • Senior Associate, Information…

    L3Harris (Melbourne, FL)
    …sea and cyber domains in the interest of national security . Job Title: Senior Associate, Information Security Systems Engineer Job Code: 27593 Job ... administration, with a general focus on Red Hat Enterprise Linux (RHEL) and Windows. Join our team of Information... (RHEL) and Windows. Join our team of Information Security Systems Engineers (ISSEs) to support Managed Network Infrastructures… more
    L3Harris (09/18/25)
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  • Linux Engineering Lead Analyst Vice…

    Citigroup (Tampa, FL)
    …standards are met within existing and planned frameworks. This is a senior level position responsible for leading a variety of engineering activities including ... being met within existing and planned framework. **Responsibilities:** + Evaluate, engineer , and enable data federation tools, specifically focusing on the efficient… more
    Citigroup (08/21/25)
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  • Senior Integration Engineer

    Red Hat (Boston, MA)
    …the Job** The Red Hat Engineering team is seeking a Senior Integration Engineer with a deep understanding of security principles, and industry best practices ... a key role in designing, implementing, and productizing new security features and solutions across Red Hat's portfolio, with...security . + Strong experience with RHEL or other Linux distributions. + Advanced level of experience with Kubernetes.… more
    Red Hat (09/28/25)
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  • Security Infrastructure Support…

    General Dynamics Information Technology (Bethesda, MD)
    …of related experience **US Citizenship Required:** Yes **Job Description:** GDIT is seeking a senior level Cyber Security Engineer , to support an enterprise ... IT systems. + 5+ years of experience at the Senior Engineer level or higher. + 3+...compliance frameworks. + Strong background in infrastructure management, including Windows/ Linux servers, network appliances, and endpoint security .… more
    General Dynamics Information Technology (10/13/25)
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  • Senior Security Engineer

    UNUM (Portland, ME)
    …Unum is changing, and we're excited about what's next. Join us. **General Summary:** Senior Security Engineer Join a team where your expertise shapes ... enterprise-wide security strategy. We're seeking a Senior Security Engineer to lead...following security areas desired:** + Operating System Security (Windows, Apple, AIX, Linux , zOS) +… more
    UNUM (10/03/25)
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