• Lead Cyber Operations Engineer

    The MITRE Corporation (Mclean, VA)
    …part of the Cyber Operations & Effects Innovation Center, enables offensive cyber operations by applying software and hardware techniques and solutions. Our ... designed to be applied to real-world missions. Our experts provide cyber capabilities including support to offensive operations, reverse engineering, and forensics,… more
    The MITRE Corporation (12/25/25)
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  • Senior Cyber Engineer - P3…

    RTX Corporation (Fullerton, CA)
    …technology advantage. Systems Security Engineering creates holistic security solutions leveraging Cyber Security, Software Assurance and Supply Chain Risk ... or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is required,… more
    RTX Corporation (10/14/25)
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  • Senior Cyber Security Engineer

    RTX Corporation (Tewksbury, MA)
    …more secure world. We have an on-site opportunity for a Senior Cybersecurity Engineer within our Application and Tactical Software Department in Tewksbury ... to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only...Massachusetts. The Department's mission is to provide world class software for air defense systems. As part of this… more
    RTX Corporation (10/23/25)
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  • Cyber Security Researcher (Cross-Functional…

    DarkStar Intelligence LLC (Fort Meade, MD)
    Cyber Security Researcher (Cross-Functional Developer; Research, & Test Engineer ) Location: Fort Meade, MD | Type: Full-Time | Clearance : TS/SCI CI Poly ... are contingent upon contract award. Overview DarkStar Intelligence is seeking Software Engineers to join our surge-ready bench. These versatile professionals flex… more
    DarkStar Intelligence LLC (12/07/25)
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  • Senior Principal Cyber Security…

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role ... include but are not limited to:** + You will engineer , design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment...+ A Bachelor's degree or 4+ additional years of cyber experience in lieu of a degree + 10+… more
    ManTech (12/13/25)
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  • Cyber Security Engineer - Managing…

    Guidehouse (Houston, TX)
    **Job Family** **:** Cyber Consulting **Travel Required** **:** None ** Clearance Required** **:** Active Secret Our Cybersecurity Consultants are a team of ... breach response. We are seeking a highly experienced **Cybersecurity Engineer - Managing Consultant** to lead and advise on...+ Develop and maintain documented System Security Plans for cyber tools and maintain current Network Diagrams per DoD… more
    Guidehouse (11/28/25)
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  • Cyber Engineer

    Leidos (Reston, VA)
    **Description** The Mission Solutions Business Area at Leidos has an opening for a ** Cyber Engineer in Reston, Virginia** to support a fast-paced team working on ... clearance . US Citizenship is required. * There are multiple levels of Cyber Engineer positions available with varying levels of education, experience, and… more
    Leidos (12/25/25)
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  • Junior Sustainment Cyber Security Test…

    KBR (Colorado Springs, CO)
    Title: Junior Sustainment Cyber Security Test Engineer Belong. Connect. Grow. with KBR! KBR is seeking a motivated entry-level, Junior Sustainment Cyber ... community, currently employing MILSATCOM and NC3 space systems, terminals and software applications worldwide. Why Join Us? + Innovative Projects: KBR's work… more
    KBR (12/01/25)
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  • Network Systems Engineer Cyber Opns…

    Nightwing (Sterling, VA)
    Nightwing provides technically advanced full-spectrum cyber , data operations, systems integration and intelligence mission support services to meet our customers' ... most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical… more
    Nightwing (12/20/25)
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  • Senior Specialist, Cyber Infrastructure…

    L3Harris (Broomfield, CO)
    … domains in the interest of national security. Job Title: Senior Specialist, Cyber Infrastructure Systems Engineer Job Code: 32451 Job Location: Denver, CO ... system development, and DevSecOps tools and processes. + Employ software lifecycle applications such as Jenkins, Jira, and Bitbucket...of 10 years of prior related experience. + TS/SCI Clearance + DoD 8570.01-M IAT Level 2 Required Professional… more
    L3Harris (12/26/25)
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