• Sr . Security Research

    Proofpoint (Denver, CO)
    …highly technical role has a direct and real-time impact protecting Proofpoint customers. As a Senior Security Research Engineer on Proofpoint's Threat ... of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks...bring to the team** * A passion for threat research and a well-rounded yet deep understanding of the… more
    Proofpoint (10/22/25)
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  • Sr RF Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …and Empower the next generation to transform humanity through technology and imagination! As a Sr RF Engineer , you will be using your skills and expertise to ... and signal processing. The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it… more
    Sierra Nevada Company, LLC (09/23/25)
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  • Sr Principal Engineer Electrical…

    BAE Systems (Westminster, CO)
    …awards. Other incentives may be available based on position level and/or job specifics. ** Sr Principal Engineer Electrical System Lead - $10K Sign On Bonus** ... in an office, laboratory, production floor, or cleanroom, outdoors or remote research environment. + May occasionally work in production work centers where use… more
    BAE Systems (10/07/25)
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  • Sr Principal Electrical System…

    BAE Systems (Westminster, CO)
    …awards. Other incentives may be available based on position level and/or job specifics. ** Sr Principal Electrical System Engineer Mechanisms Lead - $10K Sign On ... in an office, laboratory, production floor, or cleanroom, outdoors or remote research environment. + May occasionally work in production work centers where use… more
    BAE Systems (10/07/25)
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  • Principal Sr Engineer - FPGA Design…

    BAE Systems (Westminster, CO)
    …Other incentives may be available based on position level and/or job specifics. **Principal Sr Engineer - FPGA Design - $15K Sign On Bonus** **114980BR** EEO ... in an office, laboratory, production floor, or cleanroom, outdoors or remote research environment. + May occasionally work in production work centers where use… more
    BAE Systems (09/09/25)
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  • Engineer Sr - Mechanical, Mechanical…

    BAE Systems (Broomfield, CO)
    …incentives may be available based on position level and/or job specifics. ** Engineer Sr - Mechanical, Mechanical Ground Support Equipment (MGSE)** **118251BR** ... in an office, laboratory, production floor, or cleanroom, outdoors or remote research environment. + May occasionally work in production work centers where the… more
    BAE Systems (11/14/25)
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  • Sr Systems Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …systems that protect and sustain our way of living. Join our team! As a Senior Systems Engineer within our Mission Systems Integration directorate, you'll play a ... and CUAS technologies. You will use your skills and expertise to research , architect, model, simulate, test, certify, and improve cutting-edge defense solutions.… more
    Sierra Nevada Company, LLC (11/18/25)
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  • Sr . Missile Systems Integration & Test…

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …& Test Engineer to play a critical role in the research , design, development, testing, certification, deployment, and improvement of cutting-edge products and ... defense. The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR...Industry + Experience with weapons or missile systems + Senior skill set includes ability to perform all stated/implied… more
    Sierra Nevada Company, LLC (09/01/25)
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  • Sr Data Engineer

    EBSCO Information Services (Denver, CO)
    EBSCO Information Services (EBSCO) delivers a fully optimized research experience, seamlessly integrated with a powerful discovery platform to support the ... information needs and maximize the research experience of our end-users. Headquartered in Ipswich, MA,...help make an impact. **Your Opportunity** As a Data Engineer , your primary responsibility is to design, build, and… more
    EBSCO Information Services (11/19/25)
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  • Project Engineer Sr .

    Lockheed Martin (Littleton, CO)
    …of the strategic deterrence\. This position is in support of the Chief Engineer 's Office on the Fleet Ballistic Missile \(FBM\) program\. We are seeking a ... develops and maintains FBM specific engineering training materials as well as research and incorporate Lockheed Martin Enterprise and Space training, to provide a… more
    Lockheed Martin (11/01/25)
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  • Sr Software Engineer

    Lockheed Martin (Boulder, CO)
    …Exploitation \(APEX\) team within Lockheed Martin Space is seeking a skilled software engineer to support ongoing programs and internal research and development ... Experience with embedded Linux and real\-time operating systems * Active government security clearance ** Security Clearance Statement:** This position requires a… more
    Lockheed Martin (10/31/25)
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  • Sr Electrical Engineer - Lead

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …Electrical Engineering, this is the job for you! Electrical engineers at SNC research , design, develop, test, certify, deploy and improve cutting edge products and ... systems. The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR...is the job for you! Electrical engineers at SNC research , design, develop, test, certify, deploy and improve cutting… more
    Sierra Nevada Company, LLC (10/16/25)
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  • Sr . Software Development Engineer

    Vertafore (Denver, CO)
    …automation + Develop scripts and tools for our continuous integration system + Research new testing tools and technologies + Review specs and technical designs from ... every day, and delivering results you can see, we provide the level of trust and security that insurance is all about. . Bias to Action: We're united by an innate… more
    Vertafore (10/25/25)
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  • Engineer Senior Principal II Mission…

    BAE Systems (Broomfield, CO)
    …be available based on position level and/or job specifics. ** Engineer Senior Principal II Mission Architect National Security Systems** **116059BR** EEO ... **Job Description** Technical leadership position for a Systems Engineer with experience architecting space or ground systems, and who is creative, flexible, and… more
    BAE Systems (09/17/25)
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  • Senior Associate, Info Security

    L3Harris (Broomfield, CO)
    …sea and cyber domains in the interest of national security . Job Title: Senior Associate, Information Security Systems Engineer Job Code: 31042 Job ... skills to brief leadership and customers. + Possess ability to conduct research on security and other applicable topics as needed as the cybersecurity lead. +… more
    L3Harris (11/12/25)
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  • Digital Signal Processing Engineer

    Parsons Corporation (Denver, CO)
    …**Job Description:** Parsons Company, is seeking qualified candidates to fill a Sr . Digital Signal Processing Engineer (DSP) positions at our headquarters ... in Chantilly, VA. We are currently searching for full-time Sr . Level Digital Signal Processing Engineers that will design,...We meet customer and mission needs by leveraging cutting-edge research and technology, using small teams to rapidly get… more
    Parsons Corporation (10/21/25)
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  • Senior Adaptive Threat Replication…

    Bank of America (Denver, CO)
    …shine and grow. The Cyber Security Assurance Division is looking for a Senior Adaptive Threat Replication Engineer to join a team of world-class offensive ... Senior Adaptive Threat Replication Engineer Denver,...and emerging threats. Key responsibilities include leading and performing research , understanding the bank's security policy, working… more
    Bank of America (09/09/25)
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  • Senior Cybersecurity Engineer

    Humana (Denver, CO)
    …community and help us put health first** The Senior CyberSecurity Engineer develops and tests information security tools, applications, and system solutions ... stakeholders to drive products from design to volume production release. The Senior CyberSecurity Engineer work assignments involve moderately complex to complex… more
    Humana (11/21/25)
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  • Senior Systems Engineer - IT

    Lockheed Martin (Littleton, CO)
    …\(RMS\) is looking for engineering professionals to work on the Trusted Security Solutions \(TSS\) program to engineer Cross\-Domain Solution \(CDS\) products\. ... **Description:** **WHO WE ARE** Lockheed Martin is a global security and aerospace company that employs approximately 120,000 people...YOU ARE** Lockheed Martin is seeking a highly motivated Senior Systems Engineer \-IT to join our Radiant… more
    Lockheed Martin (11/12/25)
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  • Senior Fire Protection Engineer

    Jensen Hughes Inc. (Denver, CO)
    Senior Fire Protection Engineer Allen, Texas, United States; Atlanta, Georgia, United States; Austin, Texas, United States; Baltimore, Maryland, United States; ... upheld since 1939. Today, our expertise extends broadly across closely related security and risk-based fields - from accessibility consulting and risk analysis to… more
    Jensen Hughes Inc. (11/18/25)
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