• Senior Cybersecurity Engineer

    ManTech (Washington, DC)
    **MANTECH** seeks a motivated, career and customer-oriented **Senior Cybersecurity Engineer ** to join our team working in the **Washington, DC Navy Yard.** This ... platform -based network integration, information technology and communications for cybersecurity in accordance with NIST Framework, JCIDS System Survivability, DoD… more
    ManTech (10/30/25)
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  • Lead Cybersecurity Engineer ; HP…

    Capital One (Washington, DC)
    Lead Cybersecurity Engineer ; HP NonStop Systems In this key technical Lead Cybersecurity role, you'll be responsible for the overall security architecture, ... technical projects, and risk requirements. You will drive the Cybersecurity engineering roadmap with a focus on platform... Cybersecurity engineering roadmap with a focus on platform resilience and the mitigation of operational risk. About… more
    Capital One (11/21/25)
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  • Cybersecurity Application Security…

    Nelnet (Washington, DC)
    …learn, and work. We are seeking a highly skilled Application Security Engineer with strong experience across secure code review, penetration testing, automation, and ... prompt safety. + Experience with **mobile security** , reverse engineering, or platform -specific secure coding. + Certifications such as **OSWE, OSCP, GWAPT, GCSA,… more
    Nelnet (12/18/25)
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  • Systems Engineer - Platform - active…

    V2X (Springfield, VA)
    …with integrity, respect, responsibility, and professionalism. We are hiring for a Systems Engineer - Platform - active TS/SCI clearance for our Systems ... Team to support our government customer based in Springfield, VA. The Systems Engineer - Platform provides a combination of software and systems engineering… more
    V2X (12/12/25)
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  • Illumio Zero Trust Segmentation Platform

    ENS Solutions (Washington, DC)
    …executive leadership. We are seeking an experienced Illumio Zero Trust Segmentation Platform Engineer to lead the design, implementation, and operational support ... enterprise micro-segmentation strategy. This role will own the Illumio Adaptive Security Platform (ASP) across hybrid environments and play a critical part in our… more
    ENS Solutions (12/13/25)
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  • Endace Platform Engineer - Active…

    ENS Solutions (Washington, DC)
    We are seeking a seasoned Endace Implementation & Sustainment Engineer to architect, deploy, integrate, and operate Endace packet capture, monitoring, and network ... design, installation, configuration, maintenance, and long-term optimization-while integrating the platform with SIEM/SOAR, detection engineering, analytics tooling, and broader… more
    ENS Solutions (12/13/25)
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  • Jira Cloud Platform Engineer

    System One (Washington, DC)
    …Gov Cloud (AGC) with other systems in use at the Board BACKGROUND: The DevOps Engineer (specifically Jira Platform Engineer ) will serve as the technical ... Jira Cloud Platform Consultant 100% ONSITE Washington DC (New York...performance, security, and scalability. + Partner with infrastructure and cybersecurity teams to align integrations with enterprise security and… more
    System One (01/08/26)
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  • Senior Sales Engineer - SLED, Mid Market…

    Proofpoint (Washington, DC)
    …including cloud/SaaS platforms, messaging, data, network, endpoint, NOC/SOC, or MSP-related cybersecurity + Experience selling and positioning a platform is ... About Us: We are the leader in human-centric cybersecurity . Half a million customers, including 87 of...sales process every single day. As a Senior Sales Engineer working with accounts in the SLED space, you… more
    Proofpoint (12/25/25)
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  • Engineer , Senior-CRIBL

    Cayuse Holdings (Rosslyn, VA)
    **Overview** The Engineer , Senior-CRIBL will serve as the technical lead for enterprise-scale data observability and telemetry management using the CRIBL Stream, ... performance, and compliance monitoring across cloud and on-prem environments. The engineer ensures seamless data flow between logging agents (eg, syslog, Splunk… more
    Cayuse Holdings (10/25/25)
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  • Senior Security Systems Engineer

    Cydecor, Inc. (Dahlgren, VA)
    …what separates us. Job Description: Cydecor is seeking a Senior Security Systems Engineer to support cybersecurity and systems engineering for US Naval warfare ... Technical Review (SETR) process. + Proficiency with Risk Management Framework (RMF), Platform IT (PIT), and implementation of cybersecurity and boundary defense… more
    Cydecor, Inc. (12/21/25)
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  • Senior Computer Network Defense (CND)…

    V2X (Springfield, VA)
    …and professionalism. We are hiring for a Senior Computer Network Defense (CND) Engineer with an active TS/SCI clearance - with the ability to obtain and ... are required to be onsite. The Senior Computer Network Defense (CND) Engineer tests, implements, deploys, maintains, review, and administers the hardware, software,… more
    V2X (12/12/25)
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  • Security Solution Engineer - Email Security

    Proofpoint (Washington, DC)
    **About Us:** Proofpoint is a global leader in human- and agent-centric cybersecurity . We protect how people, data, and AI agents connect across email, cloud, and ... of a global team that breaks barriers to redefine cybersecurity guided by our BRAVE core values: **Bold** in...in execution and impact **POSITION SUMMARY** The Security Solutions Engineer is an information security expert responsible for assessing… more
    Proofpoint (01/13/26)
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  • Solutions Engineer

    ISC2 (Washington, DC)
    …for good. As the world's leading nonprofit member organization for cybersecurity professionals, our core values -Integrity, Advocacy, Commitment, Inclusion, and ... of certifications provide an independent and globally recognized endorsement of cybersecurity knowledge, skills and experience for all career levels. Our charitable… more
    ISC2 (12/24/25)
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  • Endpoint Security Engineer Lead…

    Leidos (Arlington, VA)
    …Endpoint Security Engineer for a customer on a highly visible and strategic Cybersecurity Task Order. The Security Engineer will need to be a self-starter ... The Security Engineer will support the design and development of cybersecurity tools and technology along with integration of new architectural features into… more
    Leidos (11/25/25)
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  • Senior Systems Engineer

    GovCIO (Alexandria, VA)
    **Overview** GovCIO is seeking a **Senior Systems Engineer ** to join our Identity, Credential, and Access Management (ICAM) and Registration Authority (RA) team, ... supporting a critical cybersecurity program for the US Coast Guard. This position...flexibility as approved by management. **Responsibilities** The Senior Systems Engineer will provide technical leadership and subject matter expertise… more
    GovCIO (12/17/25)
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  • Senior Cyber Engineer

    Nightwing (Washington, DC)
    …community, defense, civil, and commercial markets. **Senior Cyber Engineer ** Nightwing provides technically advanced full-spectrum cyber, data operations, ... work that is vital to our national security, apply today! **Senior Cyber Engineer ** Cyber Offense and Defense Experts (CODEX) is seeking a cyber engineer more
    Nightwing (01/09/26)
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  • SME Zero Trust Security Engineer

    GovCIO (Alexandria, VA)
    …ZT migration roadmaps. + Collaborate directly with engineering, architecture, and cybersecurity teams to engineer and implement permanent, scalable ZT ... **Overview** GovCIO is currently hiring a **Zero Trust Security Engineer ** to join our team, supporting a critical program with the US Coast Guard. This position is… more
    GovCIO (11/18/25)
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  • Principal Systems Engineer - active TS/SCI…

    V2X (Suitland, MD)
    …respect, responsibility, and professionalism. We are hiring a Principal Systems Engineer - active TS/SCI clearance to support our government customer based ... and maintain a Counterintelligence (CI) Polygraph. The Senior-level Principal Systems Engineer shall lead a diverse, multi- disciplinary team of information… more
    V2X (11/15/25)
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  • Case Management Engineer - Active TS/SCI…

    ENS Solutions (Washington, DC)
    We are looking for a Backend Security Engineering Case Management Engineer to architect and implement the backend foundation of our next-generation case management ... platform . This role is focused on backend systems design,...CND Certification + Ability to obtain a DoD 8570.01-M Cybersecurity Service Provider - Infrastructure Support Certification, including CEH,… more
    ENS Solutions (12/13/25)
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  • Army Data and Analytics Platform Effort

    UIC Government Services and the Bowhead Family of Companies (Alexandria, VA)
    …Cloud Architecture Engineer + Computer Network Architects + Cyber Security Engineer + Cybersecurity Information Systems Security Manager (ISSM) + Data ... **Overview** ARMY DATA, ANALYTICS PLATFORM (ARDAP): Bowhead is seeking to network with...Architect) + Information Security Analyst + Information Systems Security Engineer (ISSE) + Information Technology Specialist + IT Architecture… more
    UIC Government Services and the Bowhead Family of Companies (01/10/26)
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