• 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 ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...world and shape the future. **The Role** The IT Systems Engineer II provides advanced Tier II… more
    Lumen (12/10/25)
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  • Systems Engineer III

    Applied Research Solutions (San Antonio, TX)
    **Description** Applied Research Solutions is seeking a full-time Systems Engineer III located at Lackland AFB, Texas. **Why Work with us ?** Applied Research ... the probabilities/consequences and creating risk matrices. **Preferred Qualifications:** + Active TS / SCI clearance is preferred; + Master's Degree in Computer… more
    Applied Research Solutions (12/19/25)
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  • Systems Engineer

    Sealing Technologies (San Antonio, TX)
    …Position Overview: Sealing Technologies, a Parsons Company, is looking for a systems engineer who will provide mission-focused technical and operational support ... for the customer environment. This position ensures systems and networks remain fully functional, secure, and optimized...customer service and communication skills + Ability to obtain TS / SCI security clearance + Ability to travel… more
    Sealing Technologies (12/05/25)
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  • Sr. Specialist, Information Systems

    L3Harris (Greenville, TX)
    …and cyber domains in the interest of national security. Job Title: Sr. Specialist, Information Systems Security Engineer Job Code: 30837 Job Location: ... required with the ability to obtain and maintain a TS / SCI level . + Current DOD 8570/8140...Preferred Additional Skills: + Risk Management Framework experience for Information Systems (IS) familiarity. + Security Engineering… more
    L3Harris (12/11/25)
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  • Systems Integration Engineer

    CACI International (Austin, TX)
    Systems Integration Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: ... small team to develop, maintain, and improve existing software systems + Execute the research, engineering, and development of...be a US Citizen + Must currently hold a TS / SCI clearance with a polygraph + Bachelor's… more
    CACI International (12/11/25)
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  • Specialist, Systems Integration / Test…

    L3Harris (Waco, TX)
    …land, sea and cyber domains in the interest of national security. Job Title: Specialist, Systems Integration / Test Engineer Job ID: 30628 Job Location: Waco, TX ... actively seeking a direct hire opportunity as a Specialist, Systems Integration / Test Engineer for our... Security Clearance and be able to obtain a TS / SCI Security Clearance. + Must have functional… more
    L3Harris (11/08/25)
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  • Senior Systems Integration and Test…

    RTX Corporation (Richardson, TX)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI - Current At Raytheon, the foundation of everything we do is ... more secure world. We are currently seeking a Senior Systems Integration and Test Engineer to join...Hat), Python, and/or Perl scripting + Active and transferable TS / SCI US government issued security clearance is… more
    RTX Corporation (10/22/25)
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  • Sr. Specialist, Network Systems

    L3Harris (Greenville, TX)
    …position requires an ACTIVE Secret Clearance with the ability to obtain/maintain Top Secret / SCI Security Clearance, which requires US Citizenship. Job ... interest of national security. Job Title: Sr. Specialist, Network Systems Engineering Job Code: 32043 Job Location: Greenville, Texas...Qualifications: + US Citizenship + Ability to obtain/maintain a Top Secret / SCI Security Clearance +… more
    L3Harris (12/12/25)
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  • Sr. Specialist, Systems Engineer

    L3Harris (Greenville, TX)
    …active Secret Clearance at the time of hire with the ability to obtain a TS / SCI Clearance. + Must be a US Citizen. Preferred Additional Skills: + Active ... the interest of national security. Job Title: Sr. Specialist, Systems Engineering Job Code: 30880 Job Location: Greenville, TX...TS / SCI clearance. + Leadership - Task or… more
    L3Harris (11/08/25)
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  • Systems Engineer II - Infrastructure…

    RTX Corporation (Richardson, TX)
    …required, as only US citizens are eligible for a security clearance​ **Security Clearance:** TS / SCI with CI Poly - Current At Raytheon, the foundation of ... more secure world. We are seeking an Infrastructure Service Engineer to join our SETC Systems Engineering and Test Capabilities (SETC) team in Richardson, TX.… more
    RTX Corporation (11/11/25)
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