• Cyber Security Specialist 4

    M. C. Dean (Springfield, VA)
    …with 12+ years of experience with installation, troubleshooting and/or testing of electronic security systems or + Associates with 10+ years of experience or ... **Cyber Security Specialist 4** to join our ** Security and Electronic Systems (SES)** business Unit....or + Master's Degree with 5+ years experience + System administrator experience in performing triage on… more
    M. C. Dean (10/10/25)
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  • Senior Security Engineer

    General Dynamics Information Technology (Fairfax, VA)
    …- None - None **Experience:** 5 + years of related experience **Job Description:** **Senior Security Administrator ** Own your career as a Senior Security ... cyber defense using cutting-edge technologies. Your work in cyber security at GDIT will have an impact on securing...with statistics and functions. + Harden application and operating systems ( Linux /Windows Servers). + Conduct root cause… more
    General Dynamics Information Technology (11/13/25)
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  • Lab Manager II

    ARSIEM (Arlington, VA)
    …is looking for a Technical Engagement Network (TEN) Lab Manager with experience in Linux Systems Administrator to support the design, development, and ... acceptable performance and user accessibility, establish back-ups, and monitor systems security . + Troubleshoot and resolve complex...+ 2+ years of directly relevant experience as a Linux System Administrator . + 2+… more
    ARSIEM (11/12/25)
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  • Enterprise Logging Solution (ELS) Lead

    Tyto Athene (Ashburn, VA)
    …Strong experience in enterprise IT environments as an applications or systems administrator . + Practical knowledge of Windows and Linux systems ... Linux environments. + This role ensures that all systems , applications, and security events across the...Web Services (AWS). + Serve as a senior Splunk Administrator or Architect, responsible for the configuration, maintenance, and… more
    Tyto Athene (11/01/25)
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  • Sr Field Service Engineer

    Scientific Research Corporation (Norfolk, VA)
    …Global Command and Control System Maritime 4.0.3 (GCCS-M 4.0.3) System Administrator + 741A: Information System Security Manager (ISSM) + 742A: ... the following NECs: + 736A: Global and Command Control System Maritime 4.X (GCCS-M.4X) System Administrator...745A: Information Systems Technician + 746A: Information Systems Administrator Clearance Information SRC IS A… more
    Scientific Research Corporation (11/12/25)
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  • Platform/Infrastructure Engineer

    Nightwing (Sterling, VA)
    Linux Certifications: Linux Professional Institute (LPI), Certified Linux System Administrator (CLSA). + Infrastructure-as-Code Certifications: ... to include Tier 2/3 escalation. Required Skills: + Operating Systems : Strong understanding of Linux and/or Windows.... + Database Administration: Basic knowledge of database management systems (eg, SQL, NoSQL). + Security : Knowledge… more
    Nightwing (09/26/25)
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  • SAP NS2 Sr. Security Automation Engineer

    SAP (Herndon, VA)
    …certifications and experience will be given preferential consideration + Red Hat Certified Systems Administrator + Red Hat Certified Systems Enginee + ... Automation Engineers provide technical leadership and guidance on security automation and secure system engineering topics... + 5 years' experience with web protocols and Linux /Unix tools and architectur + 5 years' hands-on experience… more
    SAP (10/24/25)
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  • Senior CrowdStrike Falcon Endpoint Security

    AIG (Reston, VA)
    …organizational security goals + Drive the day-to-day administration of security systems , performing advanced threat hunting, and optimizing configurations to ... standards of excellence. The team is responsible for shielding the company's systems from security risks, while designing technology strategies that enable… more
    AIG (10/24/25)
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  • Enterprise Logging Solution (ELS) Lead

    TekSynap (Ashburn, VA)
    …+ Experience in an enterprise IT environment as an applications or systems administrator working in Windows and Linux environments + Experience with Linux ... of the following certifications: Certified Splunk Architect (II) or Certified Information System Security Professional (CISSP) **Overview** We are seeking an… more
    TekSynap (09/02/25)
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  • IT Support Specialist

    TekSynap (VA)
    Security Essentials Certification (GSEC) + Certified Network Defender (CND) + Systems Security Certified Practitioner (SSCP) + One of the following Google ... + Red Hat Certified Engineer + Red Hat Certified System Administrator **Experience** + Six (6) years...(DoD) IT hosting solutions. + Experience administering Windows and Linux operating systems in large enterprise environments.… more
    TekSynap (11/15/25)
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