• Senior Mechanical Engineer

    Leidos (Reston, VA)
    **Description** The Mission Solutions Business Area at Leidos is looking for a Mechanical Engineer to join our Reston, VA based team. The successful candidate ... to obtain a TS/SCI w/ CI poly level clearance. US Citizenship is **required.** + Master's with 15+ years...& Power, Cooling towers, chillers, UPS, Power Monitoring. + Cybersecurity experience - Monitoring advanced threats and managing security… more
    Leidos (09/26/25)
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  • Senior Digital Verification Engineer 4…

    Huntington Ingalls Industries (Fort Meade, MD)
    …in cyberspace and anticipate emerging threats. Our capabilities in cybersecurity , network architecture, reverse engineering, software and hardware development ... uniquely enable us to support sensitive missions for the ...evolution - by accelerating a breadth of national security solutions for government and commercial customers. Our capabilities range… more
    Huntington Ingalls Industries (10/09/25)
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  • Senior Auxiliary System Engineer

    ManTech International (Washington, DC)
    …a team dedicated to safeguarding our nation through advanced tech and innovative solutions . Since 1968, we've been a trusted partner to the Department of Defense, ... make a real impact. Dive into exciting opportunities in Cybersecurity , IT, Data Analytics and more. Propel your career...seeks a motivated, career and customer-oriented Senior Auxiliary Systems Engineer to join our team working at the Washington… more
    ManTech International (12/20/25)
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  • Principal Test Engineer

    Mercury Systems (Phoenix, AZ)
    …25-504 Job Description Job Summary: Mercury Systems is seeking a Principal Test Engineer to lead efforts in developing and executing server system tests for mission ... military standards (eg, MIL-STD-810, DO-461, DO-167, DO-178C, DO-254) and cybersecurity requirements + Oversee and conduct functional, environmental, stress, and… more
    Mercury Systems (12/12/25)
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  • Staff DevSecOps Engineer

    Zscaler (San Jose, CA)
    …you to bring your talents to Zscaler and help shape the future of cybersecurity . Our Engineering team built the world's largest cloud security platform from the ... and increasing our global footprint, the team has made us and our multitenant architecture today's cloud security leader,...strategy. The DevSecOps team is seeking a Staff DevSecOps Engineer to support internal product team(s) in managing CI/CD… more
    Zscaler (12/11/25)
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  • Journeyman NetOps Engineer

    Leidos (Tampa, FL)
    …Modernization Sector has an opening for a highly motivated **Journeyman NetOps Engineer .** This position is located at **MacDill AFB, FL** supports the Global ... Solutions Management-Operations II (GSM-O II), Joint Communications Support Element...standards, DOD standards, DOD policies, DOD instructions, DOD directives, cybersecurity policies, and best commercial practices. + Utilize ticketing… more
    Leidos (12/05/25)
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  • Software Systems Engineer Senior

    Lockheed Martin (Huntsville, AL)
    …push the boundaries of what technology can achieve\. We're creating future\-ready solutions , focusing on resiliency and urgency through our 21st Century Security(R) ... next generation\. And we're reimagining how space can connect us , ensuring security and prosperity\. Join us ...Martin Space is seeking a full time Software Systems Engineer \. In this role, you will support the software… more
    Lockheed Martin (11/15/25)
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  • Insider Threat Program Senior System…

    Leidos (Washington, DC)
    …Modernization Sector at Leidos currently has an opening for a Senior System Engineer supporting the HEITS Contract as part of the Department of Homeland Security ... opportunity to use your experience to design, develop, and advance the ITP cybersecurity infrastructure baseline. The ITP mission is to identify insider threats to… more
    Leidos (10/03/25)
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  • Principal PNT Systems Engineer

    The MITRE Corporation (Colorado Springs, CO)
    …the government create lasting impact in fields as diverse as cybersecurity , healthcare, aviation, defense, and enterprise transformation. We're making a difference ... you want to make, then choose MITRE - and make a difference with us . Department Summary: The N114 Resilient Warfighter Space Services Department is committed to… more
    The MITRE Corporation (12/23/25)
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  • Lead PNT Systems Engineer

    The MITRE Corporation (El Segundo, CA)
    …the government create lasting impact in fields as diverse as cybersecurity , healthcare, aviation, defense, and enterprise transformation. We're making a difference ... you want to make, then choose MITRE - and make a difference with us . Department Summary: The N114 Resilient Warfighter Space Services Department is committed to… more
    The MITRE Corporation (12/22/25)
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