• Senior Cyber Security Engineer

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

    Leidos (Chantilly, VA)
    …Sector at Leidos has an opening for an an **Enterprise Monitoring Tool Engineer ** who will work with our customer's, project managers, internal task or functional ... (SOPs), and user guides. **Standard Qualifications and Requirements:** + Required Clearance: TS /SCI with specific poly. + Candidate must have 12 years of experience… more
    Leidos (12/20/25)
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  • Network Infrastructure Engineer I, Amazon…

    Amazon (Alexandria, VA)
    …to completion. Amazon Web Services (AWS) is looking for a Network Infrastructure Engineer to build Amazon Dedicated Cloud regions as part of our Infrastructure ... builders to take on the challenge of scaling network systems allowing us to stay ahead of customer demand....stay ahead of customer demand. As a Network Infrastructure Engineer , you will work in a dynamic environment to… more
    Amazon (12/24/25)
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  • 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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  • 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 **Principal Cyber Security Engineer ** to join our team in **Chantilly, VA.** This role supports the… more
    ManTech (12/13/25)
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  • Reverse Engineer w/Poly

    BigBear.ai (Columbia, MD)
    Overview BigBear.ai is seeking aR everse Engineer for up-and-coming projects where you will design, develop, prototype, modify , and integrate solutions to provide ... This fast-paced and dynamic environment demands a flexible, highly-motivated engineer with a strong desire to learn new skills...+ BS degree with 6 years of experience + Clearance: TS /SCI w/Poly + Experience with developing CNO specific software… more
    BigBear.ai (12/12/25)
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  • Software Cyber Engineer - SWE 0

    Lockheed Martin (Hanover, MD)
    …Science, Information Systems or Network Engineering\. * 2 years experience Windows , Linux, or network programming * Able to install and configure anti\-virus and ... - We thrive on outsmarting the most sophisticated security systems and networks\. Cutting‑edge pioneers - Our team designs...support our mission\. **The Work:** As an Entry‑Level Software Engineer on the Offensive Cyber team, you will: *… more
    Lockheed Martin (11/26/25)
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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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  • Forensics-Malware Analyst/ Reverse Engineering

    GrammaTech, Inc. (Arlington, VA)
    …and maintain a favorably adjudicated DHS background investigation (EOD). **Preferred:** + Active Top Secret Security Clearance The base salary range for this ... with and the ability to examine malicious applications from a variety of operating systems such as Linux, Mac, Windows , IOS and Android operating systems more
    GrammaTech, Inc. (12/27/25)
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