• Linux Engineer

    ManTech (Quantico, VA)
    …and managing PostgreSQL. **Security Clearance Required** : + Must have a current/active Top Secret with the ability to obtain SCI. **Physical Requirements:** + ... **MANTECH** seeks a motivated, career and customer-oriented **Linux Engineer ** to support our current NCIS contract out...include but are not limited to:** + The Linux Engineer will maintain, update, and secure existing Linux systems… more
    ManTech (10/31/25)
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  • Senior Systems Security Engineer

    TekSynap (Dahlgren, VA)
    …processes, and Navy cybersecurity compliance frameworks. + Security Clearance: Top Secret (T5 investigation) **COMPETENCIES** + Cybersecurity Engineering ... & Qualifications** TheTekSynap is seeking a **S** **enior S** **ystem** **s Security Engineer ** **.** The Senior Systems Security Engineer (SSE) serves as Key… more
    TekSynap (10/31/25)
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  • Modeling & Simulation Engineer (Specialist)

    KBR (Reston, VA)
    …+ Proficiency in C++, Python, or other programming language + Active Top - Secret clearance with Sensitive Compartmented Information (SCI) eligibility Desired: + ... Title: Modeling & Simulation Engineer (Specialist) Belong. Connect. Grow. with KBR! KBR's...space defense. KBR is seeking a Modeling & Simulation Engineer Specialist with AFSIM experience to join a team… more
    KBR (10/24/25)
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  • Mechanical Engineer

    Leidos (Springfield, VA)
    …including electrical, architectural, and structural disciplines. **Basic Qualifications** + Active ** Top Secret SCI clearance** required, with the ability to ... **Leidos - Multi-Domain Solutions (MDS) Division** **Position: Junior Level Mechanical Engineer ** Leidos and its Multi-Domain Solutions (MDS) division are seeking a… more
    Leidos (10/23/25)
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  • Sr. Principal Cyber Software Engineer

    Northrop Grumman (Chantilly, VA)
    …cycle. + Experience writing software design documentation. **Preferred Qualifications:** + Active Top Secret / SCI security clearance with poly. + Experience ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Secret TRAVEL: Yes, 10% of the Time **Description** At Northrop Grumman, our employees… more
    Northrop Grumman (10/21/25)
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  • Senior SETA Engineer SME

    IronMountain Solutions, Inc. (Falls Church, VA)
    …Operations. + Demonstration and Experimentation. Clearance Requirements: Must have anActive Top Secret Security Clearance with SCI and SAP Experienceis ... 501180 Senior SETA Engineer SME Work Location: Falls Church, Virginia Schedule:...Time Relocation: Negotiable IMS is seeking a Senior SETA Engineer SME to join our team in the Falls… more
    IronMountain Solutions, Inc. (10/21/25)
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  • Senior T&E SETA Engineer

    IronMountain Solutions, Inc. (Falls Church, VA)
    …Operations. + Demonstration and Experimentation. Clearance Requirements: Must have anActive Top Secret Security Clearance with SCIis required. IronMountain ... 501179 Senior T&E SETA Engineer Work Location: Falls Church, Virginia Schedule: Full...Negotiable IMS is seeking a lead Senior T&E SETA Engineer to join our team in the Falls Church,… more
    IronMountain Solutions, Inc. (10/21/25)
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  • Senior SIGINT Systems Engineer

    Sciolex Corporation (Chantilly, VA)
    …next decade. + Develop architecture products. Qualifications & Physical Requirements + Active Top Secret /SCI with Poly. + Bachelors in engineering, physics, or ... utmost employee care. Responsibilities As the Senior SIGINT Systems Engineer , you will help guide new and existing SIGINT...as perform the following functions as a SIGINT Systems Engineer , by using a holistic approach and providing end-to-end… more
    Sciolex Corporation (10/09/25)
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  • DEVSECOPS Systems Engineer

    Sciolex Corporation (Chantilly, VA)
    …and decision logic concisely and accurately. Qualifications & Physical Requirements + Active Top Secret /SCI clearance with Poly. + Bachelor's degree in science, ... you receive the utmost employee care. Responsibilities As the DevSecOps Systems Engineer , you will help identify and plan new capabilities to support mission… more
    Sciolex Corporation (10/09/25)
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  • Chief Unmanned Systems Robotics Engineer

    Leidos (Arlington, VA)
    …Clearance: + US citizenship required with the ability to obtain and maintain a Top Secret security clearance and a CI polygraph may be required. Communication ... technology leader, is seeking a Chief Unmanned Systems Robotics Engineer for our Sea Systems Business Area within our...new challenges and technologies quickly. Preferred Qualifications: + Active Secret or above security clearance + PhD degree in… more
    Leidos (10/09/25)
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