• Penetration Tester, Mid

    BOOZ, ALLEN & HAMILTON, INC. (San Antonio, TX)
    …performing network security analysis, including sof tware or traffic analysis + TS / SCI clearance + HS diploma or GED + DoD 8140 baseline Certification such as ... plans + 2+ years of experience operating in Linux, Windows , and virtual platforms + 2+ years of experience...Security+, CySA+, CISSP, or DoD Cyber Workforce Framework Certification Nice If You Have:… more
    BOOZ, ALLEN & HAMILTON, INC. (12/18/25)
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  • Penetration Tester, Senior

    BOOZ, ALLEN & HAMILTON, INC. (San Antonio, TX)
    …risk and threat mitigation plans + 1+ years of experience operating in Linux, Windows , and virtual platforms + 1+ years of experience with computer attack methods ... security analysis, including software or traffic analysis + TS/SCI clearance + Bachelor's degree in a Cybersecurity, CS, or...degree in a Cybersecurity, CS, or IT field + DoD 8140 baseline Level II Certification such as Security+,… more
    BOOZ, ALLEN & HAMILTON, INC. (12/18/25)
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  • Sr. Specialist Systems Engineering

    L3Harris (Greenville, TX)
    …Systems Engineer Job Number: 30979 Job Location: Greenville, TX Schedule: 9/80 Security Clearance : Must Have an Active DoD Top Secret/SCI to be Considered ... Ability to test and troubleshoot multiple operating systems (ie Windows , Linux, NETAPP) + Requires familiarity with engineering tools...Must have the ability to obtain and maintain a DoD TS/SCI security clearance which requires US… more
    L3Harris (11/12/25)
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  • Principal Enterprise Endpoint Security Portfolio…

    RTX Corporation (Richardson, TX)
    …required, as only US citizens are eligible for a security clearance **Security Clearance :** DoD Clearance : Secret RTX Corporation is an Aerospace and ... maintain enterprise endpoint security reference architectures and roadmaps across Windows , macOS, Linux, iOS/Android, and specialized devices (IoT/OT where… more
    RTX Corporation (11/19/25)
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  • Secret Server Administrator - Active TS/SCI…

    ENS Solutions (San Antonio, TX)
    …with Delinea Secret Server administration [ formerly Thycotic] + Must possess an Active TS/SCI Clearance ; willingness to obtain a CI Poly + Must meet the DoD ... programs and contracts of similar scope, type, and complexity is required. + Windows Server Administration and experience with Windows Active Directory. Benefits… more
    ENS Solutions (12/27/25)
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  • Principal Systems Engineer - Cybersecurity

    Sierra Nevada Company, LLC (Plano, TX)
    …security clearance . The Department of Defense Consolidated Adjudications Facility ( DoD CAF), a federal government agency, handles the adjudicative aspects of the ... IDS/IPS, encryption, and IAM. + Strong understanding of operating systems ( Windows , Linux, Unix) and network protocols. + Excellent analytical, problem-solving, and… more
    Sierra Nevada Company, LLC (12/17/25)
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  • Sr Mechanical Engineer - Verification Design

    RTX Corporation (Mckinney, TX)
    …as only US citizens are eligible for a security clearance **Security Clearance :** DoD Clearance : Secret At Raytheon, the foundation of everything ... (DFMA) practices, and utilization of hand tools. Computer proficiency in Microsoft Windows , Excel and Word Proficiency with 3D modelling using Creo (or equivalent)… more
    RTX Corporation (11/14/25)
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  • Data Scientist (Level 3 or 4)

    Northrop Grumman (San Antonio, TX)
    RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our ... hybrid-cloud systems + Administering systems based on Linux and Windows operating systems + Maintaining and troubleshooting IP networking...a degree. + US Citizenship required + A current/active DoD Top Secret w/ SCI eligibility + Proficient with… more
    Northrop Grumman (11/27/25)
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  • Associate, Software Engineer (Greenville, TX)

    L3Harris (Greenville, TX)
    …within the last 12 months, regardless of age. + Eligibility to obtain DoD Security Clearance , which requires US Citizenship. L3Harris Technologies is proud ... Ruby, HTML5, XML, SQL, Perl, Python, Ajax, Qt) on Windows , Linux, mobile platforms, and/or embedded real time operating...our positions require the ability to obtain a security clearance . Security clearances may only be granted to US… more
    L3Harris (12/21/25)
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  • Information Technology/Assurance (IT/IA)…

    General Dynamics Information Technology (San Antonio, TX)
    **Req ID:** RQ211650 **Type of Requisition:** Regular ** Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None ... II is working within Special Access Programs (SAPs) supporting Department of Defense ( DoD ) agencies, such as HQ Air Force, Office of the Secretary of Defense… more
    General Dynamics Information Technology (12/17/25)
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