• Network Security Engineer

    EchoStar (Englewood, CO)
    …live whiteboarding or technical assessment session.** **Key Responsibilities:** + Manage security -centric infrastructure components such as IPS, IDS, DLP, AV and ... scanning tools + Identify, track and help remediate vulnerabilities and other security concerns + Review and provide system security requirements/guidance on… more
    EchoStar (10/02/25)
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  • Platform Network Engineer II

    RTX Corporation (Aurora, CO)
    … technologies, services, operations, and associated security practices. The **Platform** ** Network Engineer II ** will primarily work in our Aurora ... Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US...that create a safer, more secure world. The **Platform Network Engineer II ** will perform… more
    RTX Corporation (08/16/25)
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  • Systems Security Engineer II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …about creating and managing for highly complex systems? Join our team! As a Systems Security Engineer II , you will be using your skills and expertise ... **Responsibilities:** + Design, test, and implement secure classified information systems, network , environments, and capabilities + Manage and engineer more
    Sierra Nevada Company, LLC (09/10/25)
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  • Systems Security Engineer II

    Sierra Nevada Company, LLC (Lone Tree, CO)
    …about creating and managing for highly complex systems? Join our team! As a Systems Security Engineer II , you will be using your skills and expertise ... deliveries. **Qualifications You Must Have:** + Bachelor's degree in Systems Security , Network Engineering, Information Technology, or related Engineering… more
    Sierra Nevada Company, LLC (10/08/25)
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  • Information Security Engineer

    Lumen (Denver, CO)
    …world and shape the future. **The Role** Lumen is seeking a skilled and dedicated Information Security Engineer II to join our Physical Security team as ... strong background in system administration, particularly with specialized endpoints and security applications. **Location** This is a hybrid position, the work… more
    Lumen (09/26/25)
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  • Security Engineer II

    Trustmark (Denver, CO)
    …best to our colleagues, clients and communities. We are seeking a highly skilled Cyber Security Engineer to join our team and play a pivotal role in safeguarding ... of cybersecurity frameworks and standards (eg, NIST, ISO 27001). + Proficiency in network security , systems security , application security , and data … more
    Trustmark (09/20/25)
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  • Application Security Engineer

    ASM Research, An Accenture Federal Services Company (Denver, CO)
    Evaluates application security in all phases of the software development life cycle. Works closely with team members to define application security best ... and platforms. Requires one of the following certifications: + CEH, Security +, or equivalent.Defines best practices, performs software security architecture,… more
    ASM Research, An Accenture Federal Services Company (09/09/25)
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  • Platform Engineer II / Full Stack…

    RTX Corporation (Aurora, CO)
    …that create a safer, more secure world. We are seeking a highly motivated **Platform Engineer II / Full Stack Developer** . The ideal candidate will have ... DevOps/DevSecOps & Modernized technologies focused on Cloud based technologies. The **Platform Engineer II / Full Stack Developer** would be involved with the… more
    RTX Corporation (09/19/25)
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  • RF Engineer (Level II )

    Lockheed Martin (Littleton, CO)
    …Lockheed Martin Space:** Space is a critical domain, connecting our technologies, our security , and our humanity\. While others view space as a destination, we see ... focusing on resiliency and urgency through our 21st Century Security (R) vision\. We're erasing boundaries and forming partnerships across...more\. **About the Role:** We are seeking an RF Engineer to join our team in designing, developing, and… more
    Lockheed Martin (08/30/25)
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  • Cloud Engineer II

    ASM Research, An Accenture Federal Services Company (Denver, CO)
    …an on-prem Azure DevOps CI/CD Pipeline. + Utilize scans to ensure Security Technical Implementation Guide (STIG) Compliance on both Linux and Windows Servers. ... deliver timely and effective provisioning of new hosts. + Formulate detailed network , storage, and compute design specifications for stable and secure computing… more
    ASM Research, An Accenture Federal Services Company (10/11/25)
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  • Network Engineer , Sr / Secret…

    Lockheed Martin (Littleton, CO)
    …onsite at our Littleton, CO secure facility\.** This Lockheed Martin Senior Network Engineer position will support military Space Programs\. This position ... ability and willingness to obtain and maintain Top Secret** \- IAT Level II 8140/8570 Compliant Certification \(such as Security \+, GSEC, SCNP, SSCP, CISSP,… more
    Lockheed Martin (10/04/25)
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  • Network Engineer (Levels 2, 3)

    CACI International (Denver, CO)
    Network Engineer (Levels 2, 3) Job Category: Information Technology Time Type: Full time Minimum Clearance Required to Start: TS/SCI Employee Type: Regular ... standardization, and industry best practices + Follows all Customer network security processes and procedures, and ensures...degree.)_ + DoD 8140.01 and DoD 8570.01-M IAT Level II compliant Skills & Technologies: + DoD Architecture Framework… more
    CACI International (08/11/25)
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  • Cyber Security Engineer Technical…

    Lockheed Martin (Littleton, CO)
    …Together, we'll build a better tomorrow\. Are you ready to further your career in Cyber Security by working for one of the top companies in the world? This new and ... emerging need is for a Security Operations Information System Security Manager \(ISSM\)...and updating software and hardware assets, perform system and network scanning, evaluations, and remediations, as well as champion… more
    Lockheed Martin (10/04/25)
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  • Journeyman Cybersecurity Engineer

    V2X (Aurora, CO)
    …BIM. + Provides Tier 3 engineering services. + Provides expertise in network protection needs assessment, requirements elicitation, security architecture, threat ... battlefield. We bring 120 years of successful mission support to improve security , streamline logistics, and enhance readiness. Aligned around a shared purpose, our… more
    V2X (10/10/25)
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  • Principal Field Service Engineer /Sr.…

    Northrop Grumman (Aurora, CO)
    …DoD 8570.1-M at the IAT II or IAT III Level + Must have Security + and be current with Continuing Education (CE) requirements: CCNA Security , GSEC, and SSCP ... mission. Northrop Grumman Space Systems is looking to add a **Principal Electronics Engineer - Field Service Engineer (FSE)/Sr. Principal Electronics Engineer more
    Northrop Grumman (10/07/25)
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  • Senior. Platform DevSecOps Engineer

    RTX Corporation (Aurora, CO)
    …(Eg Python, Java, Ruby, Bash, C++, C#, Go) + Must meet DoD 8570 IAT level II requirements ( Security + CE or equivalent) + Active and current US government TS/SCI ... Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US...a safer, more secure world. As a **Senior DevSecOps Engineer ** , you will herald a transformative era in… more
    RTX Corporation (10/07/25)
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  • Principal Electromechanical Engineer

    Northrop Grumman (Aurora, CO)
    …DoD 8570.1-M at the IAT II or IAT III Level + Must have Security + and be current with Continuing Education (CE) requirements: CCNA Security , GSEC, and SSCP ... history. Northrop Grumman Space Systems is seeking an **Principal** **Electr** **omechanical Engineer ** to join our team. This position would be based in Aurora,… more
    Northrop Grumman (09/20/25)
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  • Principal/Senior Principal Systems Engineer

    Northrop Grumman (Aurora, CO)
    …of Linux system design, administration, and sustainment (no Windows!), cyber security , network and hardware engineering, Algorithm development, and analysis. ... are looking for a Principal or Senior Principal Systems Engineer to join our team at Buckley Space Force...PKI, identity management, etc. + DoD 8570 IAT Level II (or higher) Certification: CISSP, CompTIA Security +,… more
    Northrop Grumman (08/22/25)
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  • Defensive Cyber Engineer

    Lockheed Martin (Aurora, CO)
    …and response to cyber incidents\. 4\. Evaluate and analyze system architecture and security design as they pertain to the Cyber domain\. 5\. Apply Cyber ... Security Engineering to improve the processing, configuration, transport, and...* TS/SCI clearance * DoD 8140 \(formerly 8570 IAT II \) Certification * Ability to obtain and maintain DoD… more
    Lockheed Martin (08/08/25)
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  • Project Engineer , Senior Staff

    Lockheed Martin (Englewood, CO)
    …maintaining the technical requirements of the strategic deterrence\. **Learn about the Trident II D5 Fleet Ballistic Missile\.** - - - **What does this role look ... resource challenges to deliver results\. * Active Top Secret Security Clearance - - - **PLEASE NOTE\-Other important information:...out more on how we proudly support the Military/Veterans Network : **Hiring Our Heroes** - - - Joining Lockheed… more
    Lockheed Martin (08/13/25)
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