• Lead Security Engineer - Defensive

    SOS International LLC (Pearl Harbor, HI)
    Overview SOSi is seeking a Lead Security Engineer - Defensive Cyber AI & Infrastructure (DCAI) to spearhead the integration of AI-powered defense, ... LLM-assisted automation, and advanced cyber infrastructure in support of mission-critical operations for INDOPACOM...technology. *This role is not for a traditional SOC engineer ; it is for a proven AI/LLM practitioner ready… more
    SOS International LLC (09/10/25)
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  • Defensive Cyber Engineer

    Lockheed Martin (Aurora, CO)
    …this role, you will: 1\. Provide rotating shift support for a team of 7 Defensive Cyber Engineers working a 24/7 operation\. 2\. Provide systems and architecture ... expertise for Defensive Cyber Operations to meet Cybersecurity mission execution on SBIRS operational assets\. 3\. Assist Defensive Cyberspace Operations and… more
    Lockheed Martin (08/08/25)
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  • Senior Cyber Security Engineer

    Leidos (Chantilly, VA)
    …expertise in both software and hardware to support the design and deployment of defensive cyber measures. The engineer conducts research on current and ... **Description** Leidos is currently seeking a **Senior Cyber Security Engineer ** who is responsible...risks to critical mission systems. + Design and implement defensive cyber security solutions to protect data,… more
    Leidos (08/30/25)
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  • Principal Defense Cyber Operations…

    Google (Columbus, OH)
    …Interactive ON-NET Operator. In this role, you will join Google Public Sector as a Defensive Cyber Operations (DCO) Engineer , serving as a key component of ... CompTIA PenTest+, CompTIA Cloud+, or equivalent qualifications listed in DoD 8140.3's Cyber Defense Analyst role. + Experience with SPL, KQL, YARA-L, Kusto or… more
    Google (09/11/25)
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  • DCO Engineer - TS/SCI (On site- Lompoc, CA)

    Deloitte (Los Angeles, CA)
    …grow with confidence, and proactively manage to secure success. We require a seasoned Defensive Cyber Operations (DCO) Engineer with a desire to actively ... systems critical to our national defense. As a senior engineer the candidate will work with other engineers to...performance metrics where applicable. + Consult on IT and cyber defensive architecture and technologies. + Assess… more
    Deloitte (08/28/25)
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  • Defensive Systems Missile and Aerodynamics…

    Parsons Corporation (Huntsville, AL)
    …what you're looking for. **Job Description:** Parsons is seeking a talented **Senior Engineer / Software Developer** to join our Defensive Threat Systems ... candidate will be part of a team performing modeling and simulation of defensive weapon systems of peer/near-peer adversaries. The principal focus will be on missile… more
    Parsons Corporation (09/11/25)
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  • Senior Specialist, Systems Engineer

    L3Harris (Springfield, VA)
    …operations (land, air, sea, space, cyber ). + Coordinate offensive and defensive cyber operations with mission stakeholders. + Identify, assess, and monitor ... domains in the interest of national security. Job Title: Senior Specialist, Systems Engineer - Cyber Planning (Active TS/SCI w/CI Poly Required) Job Code: 25193… more
    L3Harris (07/02/25)
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  • Principal / Senior Principal Cyber Systems…

    Northrop Grumman (San Diego, CA)
    …Huntsville, AL, San Diego, CA, and Colorado Springs, CO. A Cybersecurity Systems Engineer (CSSE) ensures cyber survivability attributes are implemented in system ... A CSSE supports the definition of security governance, and risk management. As a Cyber Systems Engineer on this team, you will have the following… more
    Northrop Grumman (07/05/25)
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  • Cyber Operations Countermeasures…

    Leidos (Odenton, MD)
    …Fort Meade, MD. The candidate will support the DISA GSM-O II TN13 Defensive Cyber Operations (DCO) Branch. This position will provide leadership for ... **Description** Leidos has a current job opportunity for a Cyber Operations Countermeasures Engineer on the DISA... defensive cyber operations activities and will be… more
    Leidos (08/15/25)
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  • Staff Cyber Systems Engineer

    Northrop Grumman (Annapolis Junction, MD)
    …Huntsville, AL, San Diego, CA, and Colorado Springs, CO. A Cybersecurity Systems Engineer (CSSE) ensures cyber survivability attributes are implemented in system ... A CSSE supports the definition of security governance, and risk management. As a Cyber Systems Engineer on this team, you will have the following… more
    Northrop Grumman (07/05/25)
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