• Security Specialist

    KBR (El Segundo, CA)
    Title: Security Specialist Title: Security Specialist Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering ... solutions to our customers in the intelligence and national security communities. In this position, your work will have...join our team in El Segundo, CA. An active TS /SCI is required to be considered for this position.… more
    KBR (08/25/25)
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  • Security Monitoring

    Leidos (Sacramento, CA)
    …to incoming security personnel during shift changes. **Basic Qualifications** + TS /SCI w/ Poly Clearance is required + Requires high school diploma or equivalent ... **Description** We are seeking a Security Monitor to support a large facility maintenance...team. We are seeking a vigilant and highly responsible Security Monitor to safeguard personnel, property, and assets within… more
    Leidos (08/16/25)
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  • Cybersecurity System Security Engineer

    ManTech (Los Angeles, CA)
    MANTECH seeks a mission-focused **Cybersecurity System Security Engineer III** to support Special Access Programs (SAPs) aligned with SSC and AFSPC acquisition ... El Segundo, CA** , you will work closely with security professionals to safeguard vital national security ...+ years of SAP-relevant experience **Clearance Requirements:** + Current TS /SCI clearance + Must be eligible for access to… more
    ManTech (08/01/25)
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  • Security Specialist

    KBR (San Diego, CA)
    …7 years with Bachelor's or 9 years with technical training + Active DoD Secret required at minimum. TS /SCI eligibility may be required for certain assignments. ... Title: Security Specialist POSITIONS ARE CONTINGENT ON CONTRACT AWARD...prototyping, KBR provides innovative solutions that drive defense and security advancements. Position Summary:The Security Specialist supports… more
    KBR (06/11/25)
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  • Electronics Engineer III, Special Test Equipment

    Lockheed Martin (Sunnyvale, CA)
    …- - - **About Us:** Space is a critical domain, connecting our technologies, our security , and our humanity\. While others view space as a destination, we see it as ... focusing on resiliency and urgency through our 21st Century Security (R) vision\. We're erasing boundaries and forming partnerships across...* Willing and able to obtain and maintain a ** TS /SCI/Poly clearance** , thus you are a **US Citizen**… more
    Lockheed Martin (08/13/25)
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  • Senior Information Security Engineer

    Lumen (Sacramento, CA)
    …management tools such as Ansible, Chef, etc. Background in system, network, or security admin/engineering on Unix. Active TS clearance with current SSBI/T5R ... committed to teamwork, trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to thrive and deliver… more
    Lumen (09/03/25)
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  • Information System Security Officer - ISSO

    General Atomics (Poway, CA)
    …surveillance systems. We have an exciting opportunity for an Information Systems Security Officer (ISSO) to join our Classified Systems team in San Diego ... evaluating and administering system compliance with information technology (IT) security requirements to ensure company, regulatory and customer requirements are… more
    General Atomics (07/18/25)
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  • Remote Sensing Research Science Manager

    Lockheed Martin (Palo Alto, CA)
    …learning, artificial intelligence, and other advanced processing techniques\. * Current TS /SCI clearance ** Security Clearance Statement:** This position requires ... position requires the ability to obtain and maintain a TS /SCI clearance\.** The Advanced Technology Center \(ATC\) is the...Citizenship with the ability to obtain and maintain a TS /SCI clearance **Desired Skills:** * PhD in a related… more
    Lockheed Martin (08/28/25)
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  • Information Security Engineer - Black Lotus…

    Lumen (Sacramento, CA)
    …committed to teamwork, trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to thrive and deliver ... and shape the future. **The Role** Black Lotus Labs is seeking a Principal Security Engineer on the Research & Analysis team. This team leverages Lumen's global… more
    Lumen (08/30/25)
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  • Systems Operations (SysOps) Engineer

    Parsons Corporation (Vandenberg AFB, CA)
    …in a team environment + **Minimum Secret clearance is required to start. Active Top Secret is preferred with SCI eligibility** + Must be a US Citizen due ... and cloud computing ** Security Clearance Requirement:** An active Secret security clearance is required for this position.​ This position is part… more
    Parsons Corporation (09/02/25)
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