• IT Security Engineer

    Leidos (Orlando, FL)
    …supporting Information System Owners (ISO) and Information System Security Officials ( ISSO ) with RMF responsibilities + Develop and maintain accurate and effective ... Plans of Action & Milestones (POA&Ms) as part of continuous monitoring for implementing cybersecurity improvements + Collaborate with Information System Administrators (ISA) and various Engineering teams to integrate security measures into new and existing… more
    Leidos (11/22/25)
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  • Security Control Assessor Representative SCAR

    Leidos (San Antonio, TX)
    …on system requirements. **Preferred Qualifications:** + Prior experience as a SCAR, SCA, ISSO , ISSM, or RMF Assessor for DoD or Air Force programs. + Experience ... with eMASS, Xacta, or other RMF automation tools. + Knowledge of cybersecurity architecture, enterprise networks, virtualization, and system lifecycle management. + Experience supporting or validating controls on classified systems at various impact levels… more
    Leidos (11/22/25)
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  • Senior Information System Security Engineer

    General Dynamics Information Technology (Reston, VA)
    …communication, problem solving, team player + Preferred Skills: Experience as an ISSO , ISSM, ISSE, or Security Controls Assessor. Experience with Special Access ... Programs (SAPs) and Intelligence Community. + Location: On Customer Site + US Citizenship Required GDIT IS YOUR PLACE: + 401K with company match + Comprehensive health and wellness packages + Internal mobility team dedicated to helping you own your career +… more
    General Dynamics Information Technology (11/21/25)
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  • Systems Security Engineer III

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …ISSM CAP, CISSP, or CISM Certification + ISSE CAP, CISSP-ISSEP Certification + ISSO Security+, CISA, or CASP+ Certification + MCSE, Linux, and/or CCNP Security ... Certification At Sierra Nevada Company, LLC (SNC) we deliver customer-focused technology and best-of-breed integrations in the aerospace and defense sectors. SNC has been honored as one of the most innovative US companies in space, a Tier One Superior Supplier… more
    Sierra Nevada Company, LLC (11/20/25)
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  • Cyber Systems Administrato

    L3Harris (Salt Lake City, UT)
    …as Information Systems Security Manager (ISSM) or Information Systems Security Officer ( ISSO ) + Experience with tools such as ACAS (Nessus), STIGViewer, SCAP, and ... Splunk. + Experience as a Linux System Administrator + Experience with NISPOM, DAAG, JSIG, ICD + Network+, CCNA, CISSP, RHCSA Certifications + 6 years direct and relevant experience with Information Security and Cyber Intelligence. + Experience in a Department… more
    L3Harris (11/20/25)
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  • Operations & Security Manager

    NTT DATA North America (Tallahassee, FL)
    …cybersecurity, system administration, or engineering. + * At least 7 years as ISSO , security analyst, or security engineer with experience in NIST RMF, audit log ... reviews, system monitoring, SPAA processes, FISMA requirements, vulnerability and compliance scanning, continuous monitoring, security testing and evaluation, and security policies. + * Minimum 7 years of experience in vertical disciplines such as law… more
    NTT DATA North America (11/20/25)
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  • Information Systems Security Engineer

    Belay Technologies (Laurel, MD)
    …+ TS/SCI Clearance with polygraph + Fifteen (15) years' experience as an ISSO on programs and contracts of similar scope, type, and complexity is required ... + Bachelor's degree in Computer Science, Information Assurance, Information Security System Engineering, or related discipline from an accredited college or university is required. DoD 8570 compliance with IASAE Level 3 is required + A Master's degree in… more
    Belay Technologies (11/19/25)
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  • System Administration - Tiered Support

    CACI International (Annapolis Junction, MD)
    …and system optimization. + Collaborating with the Information System Security Officer ( ISSO ) and Information System Owner (ISO) regarding system changes and security ... authorizations. **Qualifications:** **Required Skills and Experience:** + Bachelor's degree in a technical discipline from an accredited college or university, or 4 additional years of System Administrator (SA) experience in lieu of a degree. + **Considering… more
    CACI International (11/19/25)
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  • Information Systems Security Manager (ISSM)

    Applied Research Associates, Inc. (Albuquerque, NM)
    …of five to seven years of related experience. + Previous experience as an ISSO /ISSM is required. + DoD Directive 8570.1 IAM Level II or higher certification. + ... Familiar with the 32 CFR Part 117, DAAG, NIST RMF, DoDM 5205.07, and/or JSIG IS requirements. + Experience investigating security incidents to include data spills, data integrity incidents and malicious code incidents + Experience with compliance… more
    Applied Research Associates, Inc. (11/18/25)
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  • Information Systems Security Engineer (Engineer…

    Huntington Ingalls Industries (Honolulu, HI)
    …benchmarks, configuration checklists, and manual validation + Coordinate with NETOPS, ISSO /ISSM, and virtualization teams to ensure that security controls are ... properly deployed and sustained + Assist with incident response preparation by enforcing audit log configurations and system event monitoring + Prepare for and participate in cybersecurity inspections and ATO validation efforts + Maintain technical… more
    Huntington Ingalls Industries (11/18/25)
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