• Associate OR Analog Modeling and Simulation

    Northrop Grumman (Jessup, MD)
    …line theory + Must be willing and able to obtain and maintain an active US Top Secret / SCI with Polygraph + US Citizenship is required **Basic Qualifications ... computing systems. MDA is seeking a **Analog Modeling and Simulation Engineer ** with ability to support our...and able to obtain and maintain an active US Top Secret / SCI with Polygraph +… more
    Northrop Grumman (12/05/25)
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  • Modeling & Simulation Engineer

    KBR (Reston, VA)
    …Python, or other programming language + Active Top - Secret clearance with Sensitive Compartmented Information ( SCI ) eligibility Desired: + Master ... Title: Modeling & Simulation Engineer (Specialist) Belong. Connect. Grow....identity or expression, age, national origin, veteran status, genetic information , union status and/or beliefs, or any other characteristic… more
    KBR (10/24/25)
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  • Simulation Engineer - TS

    Leidos (Reston, VA)
    …**Required Education, Clearance, Skills, and Experience:** + Candidate MUST possess an active TS / SCI , or a Top Secret clearance with a current SSBI, and ... Business Area at Leidos has an opening for a Simulation Engineer in Reston, Virginia. The primary...be eligible to obtain a TS / SCI w/ poly level clearance. US Citizenship… more
    Leidos (12/26/25)
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  • Senior Staff Modeling and Simulation

    Northrop Grumman (Jessup, MD)
    …history. NGMC's Advanced Programs Business Unit is seeking a **Senior Staff Modeling and Simulation Systems Engineer ** to lead a team of engineers to perform ... system performance analyses, manufacturing modeling & simulation , and system level modeling. This position is accountable...Clearance with the ability to obtain and maintain a TS / SCI w. Polygraph prior to start **Preferred… more
    Northrop Grumman (12/05/25)
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  • Network Modeling and Simulation Technician

    CACI International (Sterling, VA)
    …* * * **The Opportunity** : We are seeking an experienced Network Modeling and Simulation Engineer to join our team. The successful candidate will be responsible ... Network Modeling and Simulation Technician Job Category: Information Technology...Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage… more
    CACI International (10/23/25)
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  • Mechanical Engineer - Multiple Levels…

    Leidos (Reston, VA)
    …process **REQUIRED SKILLS, EDUCATION, EXPERIENCE, CLEARANCE:** + Candidate must possess an active TS / SCI , or a Top Secret clearance with a current SSBI, ... and be eligible to obtain a TS / SCI w/ CI poly level clearance +...models + Ability to make decisions based on incomplete information and communicate any gaps in information more
    Leidos (12/20/25)
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  • Electrical Engineer - Multiple Positions…

    Leidos (Reston, VA)
    …experience, including Senior Officials. **Clearance Requirement:** Candidate MUST POSSESS an active TS / SCI , or a Top Secret clearance with a current ... Area at Leidos has an opening for an Electrical Engineer in Reston, Virginia. The primary focus of the...candidates for consideration must possess an active TS / SCI , or a Top Secret more
    Leidos (10/04/25)
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  • Structural Engineer - Multiple Positions…

    Leidos (Reston, VA)
    …Officials **Required Skills, Education, and Experience:** + Candidate must possess an active TS / SCI , or a Top Secret clearance with a current SSBI, and ... Area at Leidos has an opening for a Structural Engineer in Reston, Virginia. The primary focus of the...be eligible to obtain a TS / SCI w/ poly level clearance. US Citizenship… more
    Leidos (10/04/25)
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  • Software Test Engineer ( TS

    CACI International (Columbia, MD)
    Software Test Engineer ( TS / SCI w/Poly) Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph ... CACI has an immediate opportunity for a Software Test Engineer to join a team in the Ft. Meade...experience may be substituted for a degree. * Current TS / SCI with Poly clearance * Current IAT… more
    CACI International (11/07/25)
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  • Senior Software Developer - TS / SCI

    Leidos (Reston, VA)
    …**Required clearance:** Candidates for consideration **must possess an active and in-scope** Top Secret clearance with the ability and willingness to obtain ... **Description** The Mission Solutions Business Area at Leidos seeks a Software Engineer to lead the creation of new software capabilities within a matrixed research… more
    Leidos (12/21/25)
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  • Systems Engineer (Journeyman, Full…

    Parsons Corporation (Reston, VA)
    …to work effectively in a collaborative team environment. **Security Clearance Requirement:** An active Top Secret SCI security clearance is required for this ... program during various times **What Required Skills You'll Bring All Levels:** + Active Top Secret / SCI security clearance + Strong knowledge of systems… more
    Parsons Corporation (12/20/25)
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  • Navigation Engineer

    The Boeing Company (Herndon, VA)
    …all work is performed onsite in Herndon, VA. This position requires an **active Top Secret ** US Security Clearance (US Citizenship Required). (A US Security ... : + Ability and willingness to upgrade to active ** TS / SCI ** US Security Clearance, or **Tier 5**...eligibility. **Security Clearance** This position requires an active US Top Secret Security Clearance (US Citizenship Required).… more
    The Boeing Company (12/25/25)
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  • Senior MBSE Systems Engineer

    CACI International (Sterling, VA)
    …Science, Engineering Management, or a related field. + Current Top Secret ( TS ) clearance with the ability to obtain SCI . + Technical Proficiency: + Cameo ... Senior MBSE Systems Engineer Job Category: Engineering Time Type: Full time...Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of… more
    CACI International (11/18/25)
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  • Senior Mechanical Engineer

    Leidos (Reston, VA)
    …**Required Skills, Education, Clearance and Experience:** + Candidate **must possess** an active TS / SCI , or a Top Secret clearance with a current SSBI, ... Business Area at Leidos is looking for a Mechanical Engineer to join our Reston, VA based team. The...and be eligible to obtain a TS / SCI w/ CI poly level clearance. US… more
    Leidos (12/26/25)
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  • High-Performance Computing (HPC) Engineer

    CACI International (Frederick, MD)
    …and incorporates new backend systems to support technical improvements. **Qualifications** _Required:_ + Top Secret SCI security clearance preferably with a ... High-Performance Computing (HPC) Engineer Job Category: Information Technology Time...Time Type: Full time Minimum Clearance Required to Start: TS / SCI with Polygraph Employee Type: Regular Percentage… more
    CACI International (11/07/25)
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  • Software Reverse Engineer

    Integration Innovation, Inc. (i3) (Washington, DC)
    …Security Clearance: + Current Secret clearance with ability to possess TS / SCI . Knowledge/Skills: + Knowledge of office administration and procedures. + ... i3 has an exciting opportunity for a Software Reverse Engineer to support the Naval Research Laboratory, Tactical Electronic...to join us! Job LocationsUS-Washington, DC ID 2025-4948 Business Unit ASI Type Full-Time Clearance Top Secret more
    Integration Innovation, Inc. (i3) (11/11/25)
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  • Principal/Sr. Principal MOD/SIM Systems…

    Northrop Grumman (Jessup, MD)
    …Polygraph prior to start **Preferred Qualifications for Principal / Sr. Principal MOD/SIM Systems Engineer :** * Active DoD TS / SCI clearance with a Polygraph ... team will also eventually model fabrication/factory performance, so an engineer with subject matter expertise in products such as...Clearance with the ability to obtain and maintain a TS / SCI w. Polygraph prior to start **Basic… more
    Northrop Grumman (12/11/25)
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  • Senior FPGA Development Engineer , Bespoke…

    Amazon (Herndon, VA)
    …logic for 100G Networking Systems - Current, active US Government Security Clearance of Top Secret or above Amazon is an equal opportunity employer and does ... looking for help. AWS seeks a Senior FPGA Development Engineer with experience developing programmable logic on the most...start, the selected candidate obtain and maintain an active TS / SCI security clearance with polygraph or commensurate… more
    Amazon (12/10/25)
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  • FPGA Development Engineer , Bespoke…

    Amazon (Herndon, VA)
    …logic for 100G Networking Systems - Current, active US Government Security Clearance of Top Secret or above Amazon is an equal opportunity employer and does ... is looking for help. AWS seeks an FPGA Development Engineer with experience developing programmable logic on the most...start, the selected candidate obtain and maintain an active TS / SCI security clearance with polygraph or commensurate… more
    Amazon (12/03/25)
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  • RF Hardware Engineer

    Integration Innovation, Inc. (i3) (Washington, DC)
    …Security Clearance + Active Secret clearance and the ability to maintain a Top Secret / SCI PHYSICAL DEMANDS + The physical demands described here are ... i3 has an exciting opportunity for a RF Hardware Engineer to support the Naval Research Laboratory, Tactical Electronic...to join us! Job LocationsUS-Washington, DC ID 2025-4961 Business Unit ASI Type Full-Time Clearance Top Secret more
    Integration Innovation, Inc. (i3) (11/18/25)
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