• Sr . Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …sea and cyber domains in the interest of national security. Job Title: Sr . Specialist, Systems Engineering Job Code: 30880 Job Location: Greenville, TX (On-Site) Job ... 1st Shift 9/80 Job Description: L3Harris is seeking a Sr . Systems Engineering Specialist who will be involved in...to the design, and development of complex, specialized SIGINT hardware/ software systems to process and manipulate ISR data from… more
    L3Harris (11/08/25)
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  • Sr Principal Systems Engineer

    RTX Corporation (Richardson, TX)
    …only US citizens are eligible for a security clearance **Security Clearance:** DoD Clearance: Top Secret **Are you looking to make a meaningful, positive impact ... of a program to recapitalize with the next-generation capabilities. As our next ** Senior ** **Principal Systems Engineer ** we will provide the training and tools… more
    RTX Corporation (11/01/25)
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  • RADAR Signal Processing Engineer

    Lockheed Martin (Grand Prairie, TX)
    …STEM degree plus 3 or more years of professional relevant experience\. \*Active DoD Secret or Top Secret Clearance is Required \(US Citizenship Required\)\. ... **Description:** You will be the RADAR Signal Processing Engineer for Lockheed Martin's team in Grand Prairie, TX\. Our team is at the forefront of Airborne RADAR… more
    Lockheed Martin (12/18/25)
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  • Sr . Mechanical Engineer

    RTX Corporation (Richardson, TX)
    …tools. **Qualifications We Prefer:** + Active possession of an active US government issued Secret or Top Secret clearance. + Practical experience in design ... Integrated Platform Solutions (IPS) engineering team is seeking a highly motivated Senior Level Mechanical Engineer that is passionate about the development… more
    RTX Corporation (10/26/25)
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  • Sr IT Systems Engineer - Pub SEC

    Lumen (San Antonio, TX)
    …upgrades **What We Look For in a Candidate** Basic Qualifications: + **Requires a Top Secret /SCI clearance** + On-call after hours/on-call support as required + ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...and shape the future. **The Role** The IT Systems Engineer II provides advanced Tier II support by troubleshooting… more
    Lumen (12/10/25)
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  • Sr . Specialist Systems Engineering

    L3Harris (Greenville, TX)
    …Job Location: Greenville, TX Schedule: 9/80 Security Clearance: Must Have an Active DoD Top Secret /SCI to be Considered Job Description: Will be involved in ... domains in the interest of national security. Job Title: Sr . Specialist, Systems Engineer Job Number: 30979...and security. This position combines an understanding of both software engineering and systems engineering. Will work with various… more
    L3Harris (11/12/25)
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  • Sr . AWS Engineer

    World Wide Technology (San Antonio, TX)
    …maintain documentation as required + Other duties as assigned **Requirements:** + Interim Secret Clearance required prior to start, TS /SCI preferred + will ... Center, a collaborative ecosystem of the world's most advanced hardware and software solutions, WWT helps clients and partners conceptualize, test and validate… more
    World Wide Technology (11/22/25)
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  • Site Reliability Developer 3

    Oracle (Austin, TX)
    …in a collaborative, agile environment, and be excited to learn. A great software engineer will make all the difference for delivering quality solutions ... National Security Region Networking team is looking for a ** Senior Site Reliability Engineer ** . As a...engineer field + 5+ years of experience in software development/ IT operations + **Technical Skills:** + 5+… more
    Oracle (12/12/25)
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  • Sr . Spec, Systems Engineering (Mission…

    L3Harris (Greenville, TX)
    Secret clearance at the time of hire with the ability to obtain and maintain a Top Secret with SCI. + Must be a US Citizen. Preferred Additional Skills: + ... domains in the interest of national security. Job Title: Sr . Specialist, Systems Engineer Job Code: 30508...Active Top Secret with SCI. + Security+ Certification.… more
    L3Harris (10/30/25)
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  • Unified Communications Engineer

    Amentum (San Antonio, TX)
    …program is to support, operate, and maintain the Distributed Continuity Integrated Network - Top Secret Enterprise Services (DCIN- TS ES) which is a ... If so, look no further. Amentum is seeking a Senior Unified Communications Engineer to join our...a dynamic environment **Clearance Required:** * Must have active Top - Secret clearance with SCI or TS more
    Amentum (12/11/25)
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