• Senior Cybersecurity Engineer - ISSO (P3)

    RTX Corporation (Vandenberg AFB, CA)
    …to join the Cyber Security Engineering team for a **Senior Cyber Security Engineer ISSO (P3)** position supporting the operations and maintenance ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (08/29/25)
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  • Secret ISSO

    Insight Global (Lompoc, CA)
    Job Description A large federal integrator is looking for an ISSO Cyber Security Engineer to join their team in CA. The Cyber Security Engineer will ... (TS/SCI eligible) - Bachelor's Degree and 5+ years of related experience in Cyber Security - Active DoD 8570 lvl 3 (CISSP, CASP+, CCNP, CISA, GCED, GCIH)… more
    Insight Global (09/09/25)
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  • Information System Security Officer…

    Lockheed Martin (Palmdale, CA)
    …for our nation's future success\. The selected candidate will join our team of cyber security professionals as an Information System Security Officer \( ... ISSO \) on\-site at Palmdale, California\. As an ISSO , you will be responsible for ensuring compliance with...account management, and support containments/investigations * Assist with providing cyber security education and training for all… more
    Lockheed Martin (08/29/25)
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  • Cybersecurity Analyst - ISSO Support…

    COLSA Corporation (San Miguel, CA)
    …The Local Defender serves as a critical cybersecurity role that combines ISSO responsibilities with traditional Security Operations Center (SOC) and Threat ... on RMF controls. The preferred candidate is an experienced ISSO with in-depth knowledge of NIST 800-53 controls, RMF...and that system documentation is updated accordingly. + Monitor Cyber Tasking Orders (CTOs), security bulletins, CVEs,… more
    COLSA Corporation (07/18/25)
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  • Senior Information Systems Security Officer…

    RTX Corporation (Goleta, CA)
    …safer, more secure world. Our cybersecurity team is seeking a **Senior Information Systems Security Officer ( ISSO )** to support our team **100% onsite** at our ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (07/22/25)
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  • Cybersecurity, Senior ISSO

    BAE Systems (San Diego, CA)
    …with BAE Systems, supporting and protecting information systems critical to national security at one of the leading companies in Aerospace and Defense. Develop ... are looking to learn, influence, and help develop top cyber technologies, applications, and processes that protect and service...be air, land, and sea come join our award-winning security family here at Electronic Systems (ES). **_In this… more
    BAE Systems (09/09/25)
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  • Information System Security Officer - Level…

    Lockheed Martin (Palmdale, CA)
    …Systems Security Officer \( ISSO \), you will join our Classified Cyber Security Team, supporting Department of Defense \(DoD\) programs to ensure ... Splunk, Nessus, Trellix, Ivanti, ACAS etc\. * Experience as an ISSO implementing or managing cyber security requirements on classified systems under JSIG,… more
    Lockheed Martin (08/28/25)
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  • Manager, Cyber Intelligence

    L3Harris (San Diego, CA)
    …employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security . Job Title: ... Counterintelligence and Security Agency (DCSA) + Prior experience as an ISSO on a federal government authorized classified information system + Solid time… more
    L3Harris (07/11/25)
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  • F-35 Information System Security Manager…

    Lockheed Martin (Lemoore, CA)
    **Description:** **What We're Doing:** Lockheed Martin's, Rotary & Mission Systems \(LM RMS\), F\-35 Cyber Security invites you to step up to one of today's most ... at **NAS Lemoore, CA** and leads the Information System Security Officer\(s\) \( ISSO \) in developing, maintaining, and...as assigned\. **Who we are:** Lockheed Martin is a Cyber Security pioneer, partner, innovator, and builder\.… more
    Lockheed Martin (09/05/25)
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  • Information Systems Security Officer

    Leidos (Port Hueneme, CA)
    **Description** Leidos has an exciting opportunity for an **Information System Security Officer ( ISSO )** employee to join our team supporting the Naval Surface ... . **Primary Responsibilities:** + Assist in the cybersecurity tasking for Special Security Office (SSO) program under NSWC Port Hueneme Division (PHD) cognizance. +… more
    Leidos (09/05/25)
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