• Offensive Security Engineer

    CoStar Realty Information, Inc. (Arlington, VA)
    Offensive Security Engineer Job Description ** Offensive Security Engineer ** **Overview** CoStar Group (NASDAQ: CSGP) is a leading global provider ... we provide an invaluable edge in real estate. Evolve our offensive security capabilities to test our internal and external facing processes, infrastructure,… more
    CoStar Realty Information, Inc. (07/03/25)
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  • Cyber Security Engineer

    Leidos (Springfield, VA)
    **Description** We are seeking a Cyber Security Engineer who is responsible for developing and implementing advanced security solutions to defend critical ... to support the design and deployment of defensive cyber measures. The engineer conducts research on current and emerging cyber threats, identifies vulnerabilities,… more
    Leidos (05/24/25)
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  • Security Engineer

    Leidos (Chantilly, VA)
    **Description** We are seeking a highly skilled Cyber Security Engineer supporting the NRO cyber operations group or Industrial Control Systems group at each ... in software and hardware development for cybersecurity applications, including both offensive and defensive security solutions. + Proficiency in coding… more
    Leidos (05/24/25)
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  • Information Systems Security

    BOOZ, ALLEN & HAMILTON, INC. (Fort Belvoir, VA)
    Information Systems Security Engineer The Opportunity: Are you looking for an opportunity to share your experience in system security engineering to help our ... assist our clients with critical missions? As a systems security and network security engineer ,...NIST 800-207 + TS/SCI clearance with a polygraph + Offensive Security Certified Professional ( OSCP )… more
    BOOZ, ALLEN & HAMILTON, INC. (06/27/25)
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  • Security Engineer II, Stores…

    Amazon (Arlington, VA)
    Description Amazon's Stores Pentest Team is seeking a Security Engineer to help keep Amazon secure for its customers. In this role, you will attack Amazon's ... of highly skilled individuals sounds exciting to you. A Security Engineer at Amazon is expected to...years of experience in a penetration testing or similar offensive security role Preferred Qualifications - 4+… more
    Amazon (06/18/25)
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  • Principal Cyber Engineer

    Leidos (Chantilly, VA)
    … Expert (GSE) or other GIAC certifications. + Certified Ethical Hacker (CEH) or Offensive Security Certified Professional (OSCP). + AWS Certified Security - ... of software and hardware for solutions in support of offensive and defensive security , researching cyber technology... Engineer Associate, or Google Professional Cloud Security Engineer . + Certified Cloud Security more
    Leidos (06/30/25)
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  • Cyber Engineer

    Leidos (Chantilly, VA)
    … Expert (GSE) or other GIAC certifications. + Certified Ethical Hacker (CEH) or Offensive Security Certified Professional (OSCP). + AWS Certified Security - ... of software and hardware for solutions in support of offensive and defensive security , researching cyber technology... Engineer Associate, or Google Professional Cloud Security Engineer . + Certified Cloud Security more
    Leidos (06/30/25)
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  • Cyber Software Engineer /Supervisor

    Leidos (Arlington, VA)
    **Description** Are you a motivated **Cyber Software Engineer ** with technical hands-on knowledge of mission focused systems? Are you an ethical hacker ready to ... apply your knowledge to National Security ? Join us at the Leidos Innovations Center, Information...variety of exciting R&D programs. As a **Cyber Software Engineer ** , you will design and implement sophisticated low-level… more
    Leidos (05/08/25)
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  • Senior SETA Engineer SME

    IronMountain Solutions, Inc. (Falls Church, VA)
    501180 Senior SETA Engineer SME Work Location: Falls Church, Virginia Schedule: Full Time Relocation: Negotiable IMS is seeking a Senior SETA Engineer SME to ... networks, and data. Evaluate the electromagnetic and digital effects of offensive and defensive information warfare to quantify the effectiveness of prototypes… more
    IronMountain Solutions, Inc. (04/22/25)
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  • Senior Cyber Capability Developer (Reverse…

    Leidos (Lorton, VA)
    …+ Relevant certifications such as Certified Reverse Engineering Analyst (CREA), Offensive Security Certified Professional (OSCP), or similar certifications ... for our customers, our people, and our community. The Leidos National Security Sector combines technology-enabled services and mission software capabilities in the… more
    Leidos (06/08/25)
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  • Red Team Engineer

    Parsons Corporation (Centreville, VA)
    …and software development lifecycle. + Previous experience in a Red Team or offensive security role. + Familiarity with threat modeling and risk assessment ... what you're looking for. **Job Description:** **HYBRID Device Exploitation Engineer ** Are you passionate about cybersecurity and discovering vulnerabilities? Join… more
    Parsons Corporation (05/10/25)
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  • Senior Specialist, Systems Engineer - Cyber…

    L3Harris (Springfield, VA)
    …the space, air, land, sea and cyber domains in the interest of national security . Job Title: Senior Specialist, Systems Engineer - Cyber Planning (Active TS/SCI ... Systems Engineer - Cyber Planner supporting a critical national security program. The successful candidate will join a high-performing team of government… more
    L3Harris (07/02/25)
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  • Senior Scientist, Systems Engineer

    L3Harris (Herndon, VA)
    …the space, air, land, sea and cyber domains in the interest of national security . Job Title: Senior Scientist, Systems Engineer Job Code: 25385 Job Location: ... Herndon, VA Job Schedule: 9/80 Job Description: The Advanced Concept Engineer (ACE) provides the strategic technical leadership to draw on L3Harris' technical… more
    L3Harris (07/09/25)
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  • ELK/Data Engineer (TS/SCI) (Ft. Belvoir,…

    SMX (Fort Belvoir, VA)
    …mitigation techniques. **Desired Skills/Experience** + Advanced certifications such as Offensive Security Certified Professional (OSCP), GIAC Certified Incident ... ELK/Data Engineer (4177) (TS/SCI) (Ft. Belvoir, VA)at SMX(View all...observability techniques to improve threat detection, incident response, and security posture. This role requires designing and developing data… more
    SMX (04/15/25)
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  • Senior Reverse Engineer - Firmware/Hardware

    Parsons Corporation (Centreville, VA)
    …you're looking for. **Job Description:** Parsons is looking for an amazingly talented **Reverse Engineer ** to join our team! In this role you will get to **work with ... + Self-motivated and passionate about supporting the US Cyber Security mission + Candidate must be able to understand...mission + Candidate must be able to understand both offensive and defensive aspects of RE; defeating against and… more
    Parsons Corporation (05/14/25)
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  • CNO Software Engineer Staff

    Lockheed Martin (Herndon, VA)
    …a much higher level of engagement and ingenuity than your average Cyber Security role\. We are composing creative offensive cyber solutions to real\-world ... problems, all in the name of national security \. From Day One, you will be launched into...you'll be able to leverage your knowledge of OS security features, reverse engineering, vulnerability analysis, networking, firmware, kernel\-level… more
    Lockheed Martin (07/12/25)
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  • System Engineer Principal Uscybercom SETA…

    Sciolex Corporation (Chantilly, VA)
    …and support to weekly meetings at NSA Overhead Program Division (OPD), coordinating offensive cyber opportunities for USCYBERCOM and the NRO. Make a difference in ... securing our nation's security through quality Outreach support of NRO's tools and capabilities. + The ideal representative will perform engagements across the… more
    Sciolex Corporation (04/16/25)
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  • Cyber Security Specialist - Multiple Levels

    Science Systems and Applications, Inc. (Lanham, MD)
    …detection and response) Specialized Cybersecurity Roles + Penetration Tester: + Offensive Security Certified Professional (OSCP) (Hands-on penetration testing) + ... + AWS Certified Security - Specialty + Microsoft Certified: Azure Security Engineer Associate + Google Cloud Professional Cloud Security Engineer more
    Science Systems and Applications, Inc. (07/02/25)
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  • Digital Network Exploitation Analyst

    CACI International (Chantilly, VA)
    …* * * **What You Will Do:** **Want to stretch your skills and knowledge in the Offensive Cyber domain? You will get to work with an agile, fast paced team focused on ... grow on and between programs with peers who are dedicated to advancing national security . Participate in fun team outings and team building events where you get to… more
    CACI International (05/01/25)
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