• Test Engineer SME

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a **Test Engineer ** ( **SME** ) in our **National Security Sector's (NSS) Cyber & Analytics ... and make a difference in National Security!** **Job Summary** This Test Engineer SME will provide technical expertise with developing and executing automated testing… more
    Leidos (11/07/25)
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  • Software Engineer , (C#) Level 1

    Acclaim Technical Services (Annapolis Junction, MD)
    …this as a significant strength, and it shows: ATS is consistently ranked as a top workplace among DC area firms and continues to grow. We are actively recruiting for ... a Software Engineer (C#), Level 1 to support our Engineering Services...and complexity. Our development environment consists of C# and Windows . FPGA/ASIC knowledge would be helpful, but not required.… more
    Acclaim Technical Services (12/24/25)
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  • Senior Principal Cyber Security Engineer

    ManTech (Chantilly, VA)
    …application firewalls, high availability solutions, network management systems , and virtual systems + Knowledge of Windows and Linux systems , general ... **MANTECH** seeks a motivated, career and customer-oriented **Senior Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports… more
    ManTech (12/13/25)
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  • Cloud Engineer

    SAIC (Washington, DC)
    **Description** SAIC, a leading provider of systems engineering & integration, systems development & deployment, intelligence analysis and targeting, and ... an anticipated decision expected by fall 2025.** The **Cloud Engineer ** responsibilities include, but are not limited to: +...+ Develop and conduct testing of cloud and virtualization systems + Collaborate on system design for security and… more
    SAIC (12/06/25)
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  • AWS Full Stack Infrastructure Engineer

    BCMC (Dulles, VA)
    …mitigation countermeasures as necessary. Required Qualifications: * US Citizenship * Active Secret clearance (with the ability to obtain TS /SCI clearance and ... to address emerging threats. BCMC is seeking a skilled Full Stack Infrastructure Engineer with expertise and focus on automated patching and security updates in AWS… more
    BCMC (01/06/26)
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  • Expert CNO Software Engineer

    ManTech (Hanover, MD)
    **MANTECH** seeks a highly experienced and mission-focused **Expert Software Engineer ** to join our CNO team in **Hanover, MD.** As an Expert Software Engineer ... design, development, documentation, testing, and debugging of applications software and systems + Apply expert knowledge of security concepts and network… more
    ManTech (01/13/26)
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  • Senior CNO Software Engineer

    ManTech (Hanover, MD)
    **MANTECH** seeks a highly experienced and mission-focused **Senior CNO Software Engineer ** to join our CNO team in **Hanover, MD.** As a Senior Software Engineer ... the design, development, documentation, testing, and debugging of applications software and systems + Apply knowledge of security concepts and network technologies +… more
    ManTech (01/13/26)
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  • Lead CNO Software Engineer

    ManTech (Hanover, MD)
    **MANTECH** seeks a highly experienced and mission-focused **Lead CNO Software Engineer ** to join our CNO team in **Hanover, MD.** As a Lead Software Engineer on ... design, development, documentation, testing, and debugging of applications software and systems + Apply expert knowledge of security concepts and network… more
    ManTech (10/21/25)
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  • Principal Test Engineer

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a Principal Test Engineer in our **National Security Sector's (NSS) Cyber & Analytics Business Area ... us and make a difference in National Security!** **Job Summary:** As a Test Engineer on this program, you will have the opportunity to perform software development… more
    Leidos (10/31/25)
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  • Security Engineer

    Leidos (Lorton, VA)
    …a degree. + 5-8+ years of hands-on experience administering and securing Linux systems in an enterprise environment. + Active TS /CI government security clearance ... at Leidos currently has an opening for a Security Engineer to work in our Lorton, VA office. This...(eg, FISMA, FedRAMP, PCI-DSS, HIPAA, SOX). + Familiarity with Windows server hardening and cross-platform vulnerability management. + Experience… more
    Leidos (12/11/25)
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