• National Renewable Energy Laboratory (Golden, CO)
    **Posting Title** Senior Research Operations Engineer . **Location** CO - Golden . **Position Type** Regular . **Hours Per Week** 40 . **Working at NREL** ... at the NREL's Energy Systems Integration Facility (ESIF) seeks to fill a senior electrical engineering position in the laboratory research operations center. The… more
    DirectEmployers Association (08/20/25)
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  • 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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  • Principal / Sr . Principal Algorithms…

    Northrop Grumman (Boulder, CO)
    …and only 25 miles from downtown Denver. **Position Overview:** As a Principal / Senior Principal Algorithms Software Engineer on the BOA/ESL Team, you will be ... listed below.** This requisition may be filled at either a Principal Algorithm Software Engineer (T03) or a Sr . Principal Algorithm Software Engineer (T04)… more
    Northrop Grumman (09/30/25)
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  • Systems Engineer Sr

    Lockheed Martin (Littleton, CO)
    …refresh of electrical support equipment for the FBM program\. As a System of Systems Engineer Senior , you will: * Play a leading role in transforming the Ground ... **Description:** Space is a critical domain, connecting our technologies, our security and our humanity\. While others view space as a destination, we see it as a… more
    Lockheed Martin (10/17/25)
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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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  • Export Classifier- Sr . Advanced Systems…

    Honeywell (Broomfield, CO)
    …software control systems, atomic physics, ultra-high vacuum environments, cryogenics, cyber security , and more. Honeywell's ACST team is seeking an experienced ... **Export Classifier- Sr . Adv Systems Eng** for our **Broomfield, CO, and/or...+ US citizenship required to obtain and maintain government security clearance + A keen eye for detail and… more
    Honeywell (09/24/25)
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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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  • 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 (09/24/25)
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  • Sr Systems Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …our world united and sustain our way of living. Join our team! As a Systems Engineer , you will be using your skills and expertise to research , architect, model, ... and detailed design, simulation, and test using progressive tools. As a cross-functional engineer , you are in charge of system-level ownership of new products and… more
    Sierra Nevada Company, LLC (09/25/25)
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  • Sr Project Engineer

    Lockheed Martin (Boulder, CO)
    …\(APEX\) team within Lockheed Martin Space is seeking a highly organized Project Engineer to lead and support the execution of ongoing programs and internal ... research and development efforts focused on remote sensing data...sensing data processing, exploitation applications, and simulations\. The Project Engineer will serve as the primary interface between engineering,… more
    Lockheed Martin (10/16/25)
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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 Systems Engineer - MBSE

    Sierra Nevada Company, LLC (Lone Tree, CO)
    The ISR (Intelligence, Surveillance & Reconnaissance), Aviation, and Security (IAS) business area is a leader in ISR and aviation, it is a leading prime manned and ... way of living. Join our team! As a Systems Engineer , you will be using your skills and expertise...you will be using your skills and expertise to research , architect, model, simulate, test, certify and improve cutting… more
    Sierra Nevada Company, LLC (09/06/25)
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  • Sr Systems Engineer

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …our world united and sustain our way of living. Join our team! As a Systems Engineer , you will be using your skills and expertise to research , architect, model, ... and detailed design, simulation, and test using progressive tools. As a cross-functional engineer , you are in charge of system-level ownership of new products and… more
    Sierra Nevada Company, LLC (10/17/25)
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  • Sr . Principal Software and Mathematics…

    Northrop Grumman (Boulder, CO)
    …and Missile Defense Systems division within Northrop Grumman Space Systems is seeking a Senior Principal Software Engineer with a passion and expertise for both ... Rocky Mountains, and only 25 miles from downtown Denver. **Position Overview:** As a Senior Principal Software Engineer on the Advanced Programs IRAD Team, you… more
    Northrop Grumman (08/20/25)
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  • Sr Lead Software Engineer

    Lumen (Denver, CO)
    …Product & Networking) organization. We are seeking a highly qualified and experienced Senior Lead Software Developer to join our fast-paced and innovative team. This ... volumes and fast feedback + Works with Enterprise Architecture, Information Security (InfoSec), Software Delivery, and Quality Assurance to enable the organization… more
    Lumen (10/21/25)
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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 Information Security

    Lumen (Denver, CO)
    …demonstrating behaviors aligned with our core values. **The Main Responsibilities** * Research , evaluate, engineer , develop, troubleshoot and support solutions ... vendors and peers to anticipate, define, and pursue these capabilities. A successful engineer is a strong communicator and relationship builder, who uses soft skills… more
    Lumen (10/15/25)
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  • Senior Application Security

    Confluent (Denver, CO)
    …One Confluent. One Team. One Data Streaming Platform. **About the Role:** As an application security engineer at Confluent, you will join a team of security ... throughout Confluent + Keep up to date with emerging security vulnerability classes, research and perform triage for relevance by performing table top… more
    Confluent (10/02/25)
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