• Environmental Engineer ( TS

    Fluor (Aurora, CO)
    …Community. **Job Description** Must possess an active (or ability to obtain and maintain) TS / SCI with Polygraph clearance The purpose of this position is to ... in order to avoid and minimize Health, Safety, & Environmental (HSE) related problems. These problems include but are...possess an active (or ability to obtain and maintain) TS / SCI with Polygraph clearance * US Citizen… more
    Fluor (10/23/25)
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  • Electromagnetic Environmental Effects (E3)…

    Lockheed Martin (Littleton, CO)
    …security clearance, you must be a US Citizen for consideration\. **Clearance Level:** TS / SCI **Other Important Information You Should Know** **Expression of ... * Expertise in Electromagnetic Compatibility \(EMC\) theory * Active or Current Top Secret security clearance; US Citizenship Required **Desired Skills:** *… more
    Lockheed Martin (12/04/25)
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  • Environmental , Safety & Occupational…

    EMCOR Group (Tysons Corner, VA)
    …Qualifications: + **Current Top Secret ( TS ) clearance with Sensitive Compartmented Information ( SCI ) eligibility.** + Must possess and ... for Safety - Certified Safety Professional (CSP); and/or for Environmental Engineering - Professional Engineer (PE)). + A minimum of 10 years of experience… more
    EMCOR Group (11/01/25)
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  • Environmental , Occupational Safety…

    EMCOR Group (Springfield, VA)
    …This position requires an Active Top Secret / Sensitive Compartmented Information ( TS / SCI ) Clearance** **Qualifications:** + Professional ... for Safety - Certified Safety Professional (CSP); and/or for Environmental Engineering - Professional Engineer (PE)). + A minimum of **10** years of experience… more
    EMCOR Group (10/30/25)
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  • Environmental , Safety And Occupational…

    V2X (Springfield, VA)
    …This position requires a current Top Secret / Sensitive Compartmented Information ( TS / SCI ) Clearance. At V2X, we are deeply committed ... - Certified Industrial Hygienist (CIH); Safety - Certified Safety Professional (CSP); Environmental Engineering - Professional Engineer (PE) are all acceptable… more
    V2X (12/11/25)
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  • Civil Engineer - Top Secret

    Leidos (Reston, VA)
    …+ US Citizenship is required + All candidates for consideration must possess an active TS / SCI , or a Top Secret clearance with a current SSBI, and be ... **Description** Leidos has several openings for a Civil Engineer in Reston, Virginia. The primary focus of...eligible to obtain a TS / SCI w/ poly level clearance. **Required Skills,… more
    Leidos (10/09/25)
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  • Deputy Program Manager (DPM) TS

    EMCOR Group (Tysons Corner, VA)
    …**Qualifications:** + **Current Top Secret ( TS ) clearance with Sensitive Compartmented Information ( SCI ) eligibility.** + Must possess and ... Facility Operations + Security Services + Logistics and Motorpool + Environmental , Safety and Occupational Health Support + Engineering, Construction and Operations… more
    EMCOR Group (11/01/25)
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  • Program Manager (PM) TS with SCI

    EMCOR Group (Tysons Corner, VA)
    …**Qualifications:** + **Current Top Secret ( TS ) clearance with Sensitive Compartmented Information ( SCI ) eligibility.** + Must possess and ... Facility Operations + Security Services + Logistics and Motorpool + Environmental , Safety and Occupational Health Support + Engineering, Construction and Operations… more
    EMCOR Group (11/01/25)
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  • Software Engineer ( TS / SCI

    Parsons Corporation (Fort George G Meade, MD)
    …+ TS SCI w/ poly required **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required for this position.​ ... talent and redefine what's possible. **Job Description:** We are seeking a **Software Engineer 1** to join the software development team who will develop and sustain… more
    Parsons Corporation (12/02/25)
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  • Software Engineer , Lead - TS

    Parsons Corporation (Annapolis Junction, MD)
    …mission experience are advantageous but not required **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required ... capability deployments is essential + Atlassian, Jira, Confluence experience + Active TS / SCI w/Poly **What Desired Skills You'll Bring:** + AWS certifications… more
    Parsons Corporation (11/24/25)
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  • Principal Level Digital Signal Processing…

    Parsons Corporation (Chantilly, VA)
    …processing, communications, and signal localization challenges **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is ... seeking qualified candidates to fill a Digital Signal Processing Engineer (DSP) positions at our headquarters in Chantilly, VA....in Electrical Engineering, Computer Engineering or related discipline + TS / SCI w/ Poly is required + Minimum… more
    Parsons Corporation (09/24/25)
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  • Systems Engineer TS / SCI

    Parsons Corporation (Charlotte, NC)
    …model, analyzing networking protocols using Wireshark **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required ... Parsons is seeking a highly skilled and motivated **Systems Engineer ** to join our dynamic team. In this role,...customer test environments **What Required Skills You'll Bring:** + ** Top Secret // SCI Security Clearance with… more
    Parsons Corporation (11/24/25)
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  • Sr. Specialist/Specialist, Integration/Test…

    L3Harris (Palm Bay, FL)
    …of Ground System Integration and Test (SI&T) ground communications. + Active Secret or Top Secret or TS / SCI clearance. Preferred Additional Skills: + ... national security. Job Title: Sr. Specialist/Specialist, Ground System Integration & Test Engineer Job Code: 31385 Job Location: Palm Bay, FL (on-site) Job… more
    L3Harris (12/06/25)
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  • TS / SCI DevOps Engineer

    Parsons Corporation (Centreville, VA)
    …with the Atlassian product suite (Confluence, Jira). **Security Clearance Requirement:** An active Top Secret SCI security clearance is required for this ... we want to hear from you! As a DevOps Engineer at Parsons, you will play a critical role...and customers. **What Required Skills You'll Bring:** + Active Top Secret security clearance. + Bachelor's degree… more
    Parsons Corporation (11/06/25)
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  • Principal / Sr Principal Vehicle Systems…

    Northrop Grumman (Dulles, VA)
    …of engineers and managers to achieve the goals of the program team. Current TS / SCI is required, and program access is strongly preferred. **This position ... Northrop Grumman Space Systems Sector seeks a qualified Vehicle Engineer to support a critical space mission. Vehicle ...**Must have US Citizenship with current or active DoD TS / SCI Clearance at time of application** **Preferred… more
    Northrop Grumman (10/31/25)
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  • Data Team Lead - TS / SCI w/Poly

    Parsons Corporation (Annapolis Junction, MD)
    …with NC3 mission space + AWS Cloud certifications **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required for ... our Information System Security Officer (ISSO) and Information System Security Engineer (ISSE) functions, manage...data governance, and experience leading data efforts + Active TS / SCI w/Poly **What Desired Skills You'll Bring:**… more
    Parsons Corporation (09/30/25)
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  • Software Developer C++ TS / SCI

    Parsons Corporation (Centreville, VA)
    …with virtualized environments including KVM, VMWare **Security Clearance Requirement:** An active Top Secret SCI w/Polygraph security clearance is required ... years of experience working with networking protocols, and tools such as Wireshark + ** Top Secret Clearance with Poly** **What Desired Skills You'll Bring:** +… more
    Parsons Corporation (11/07/25)
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  • Project Manager ( TS / SCI

    Fluor (Aurora, CO)
    …role. **Job Description** Must have an active (or the ability to obtain and maintain) TS / SCI with CI Polygraph The purpose of this position is to perform the ... Project Director (PD) in verifying that Health, Safety and Environmental (HSE) is emphasized throughout all phases of the...an active (or the ability to obtain and maintain) TS / SCI with CI Polygraph The purpose of… more
    Fluor (09/17/25)
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  • HVAC Technician 3 - TS / SCI

    M. C. Dean (Charlottesville, VA)
    …meet eligibility requirements, including US Citizenship, for access to classified information ; **Active TS / SCI with Polygraph** **License/Certification ... must meet eligibility requirements, including US Citizenship, for access to classified information ; **Active TS / SCI with Polygraph** + Applicants selected… more
    M. C. Dean (11/26/25)
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  • Site Manager ( TS / SCI

    Fluor (Las Cruces, NM)
    …the DOE, NNSA, the Department of Defense and the Intelligence Community. **Job Description** TS / SCI clearance is required, must be able to obtain and maintain a ... to detail and work in a time-conscious and time-effective manner **Other Job Requirements** * TS / SCI clearance is required, must be able to obtain and maintain a… more
    Fluor (10/29/25)
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