• 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 (Mclean, VA)
    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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  • Senior Systems Engineer

    M. C. Dean (Vienna, VA)
    …protection, data protection / data loss prevention, and other components of our cybersecurity infrastructure. As part of the team, the **Senior Systems Engineer ... not be limited to) the following: + Analysis of cybersecurity framework (NIST, ISO, CMMC), and development of **detailed...Center), and related. + Working knowledge of MS Windows platform and services, including Active Directory / EntraID, Group… more
    M. C. Dean (11/26/25)
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  • Cybersecurity Project Engineer

    Nightwing (Sterling, VA)
    …in the intelligence community, defense, civil, and commercial markets. Job Title: Cybersecurity Project Engineer Location: Sterling, VA Clearance: TS/SCI Poly ... **This position is CONTINGENT upon contract award** The Cyber Security Project Engineer (CSE) supports the LSA to identify, design, and deploy security controls and… more
    Nightwing (12/26/25)
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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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  • Lead Platform Engineer (Audio Video…

    Capital One (Mclean, VA)
    Lead Platform Engineer (Audio Video / Unified Communications) We're looking for a visionary and hands-on AV Engineering DevOps Manager to lead our team in ... upon number of hours to be regularly worked. McLean, VA: $158,400 - $180,800 for Lead Platform Engineer Plano, TX: $144,000 - $164,400 for Lead Platform more
    Capital One (11/27/25)
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  • Endace Platform Engineer

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    Endace Platform Engineer The Opportunity: We are seeking a seasoned Endace Implementation and Sustainment Engineer to architect, deploy, integrate, and ... design, installation, configuration, maintenance, and long-term optimization-while integrating the platform with SIEM or SOAR, detection engineering, analytics tooling,… more
    BOOZ, ALLEN & HAMILTON, INC. (12/30/25)
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  • Platform Engineer

    Synergy ECP (Columbia, MD)
    Platform Engineer Columbia, MD (http://maps.google.com/maps?q=6731+Columbia+Gateway+Dr+Columbia+MD+USA+21046-2136) Job Type Full-time Description Synergy ECP Job ... Columbia, Maryland, Synergy ECP is a leading provider of cybersecurity , software and systems engineering and IT services to...any other protected class. Clearance Required: TS/SCI w/ Polygraph Platform Engineer Skill Level 1 Provide hardware,… more
    Synergy ECP (12/23/25)
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  • Case Management Platform Backend…

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    Case Management Platform Backend Engineer Key Role: Architect and implement the backend foundation of our next-generation case management platform . Perform ... data architecture, integration engineering, and workflow enablement, ensuring the platform serves as a scalable, extensible system-of-record for security programs.… more
    BOOZ, ALLEN & HAMILTON, INC. (01/01/26)
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  • Senior Platform Engineer

    Leidos (Chantilly, VA)
    **Description** This position is for a ** Platform Engineer ** for a technical development program supporting the Sponsor's IdAM/ICAM programs located on a secure ... network. As a Platform Engineer on this program, you will...work with a large team of developers, software engineers, cybersecurity engineers, database administrators, and system architects. Applicants for… more
    Leidos (01/09/26)
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  • Illumio Zero Trust Segmentation Platform

    ENS Solutions (Reston, VA)
    …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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  • Illumio Zero Trust Segmentation Platform

    BOOZ, ALLEN & HAMILTON, INC. (Reston, VA)
    Illumio Zero Trust Segmentation Platform Engineer Key Role: Lead the design, deployment, configuration, and optimization of Illumio Core and Illumio Edge across ... Troubleshoot system performance, VEN installation issues, policy conflicts, and platform health across distributed infrastructure. Partner with application owners to… more
    BOOZ, ALLEN & HAMILTON, INC. (12/30/25)
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  • Endace Platform Engineer - Active…

    ENS Solutions (Reston, VA)
    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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  • Platform Infrastructure Engineer

    Guidehouse (Bethesda, MD)
    …Obtain Public Trust **What You Will Do** **:** We are searching for a Platform Infrastructure Engineer to support future opportunities. The person in this role ... will be based in Bethesda, MD. + Design, implement, and optimize platform infrastructure, including migrating from legacy on-premise solutions to cloud environments… more
    Guidehouse (12/10/25)
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  • Platform /Infrastructure Engineer

    Nightwing (Sterling, VA)
    …the intelligence community, defense, civil, and commercial markets. Job Title: Platform /Infrastructure Engineer Location: Sterling, VA Clearance: TS/SCI Poly ... **This position is CONTINGENT upon contract award** The Platform /Infrastructure Engineer (PIE) designs, builds, and maintains...on this new journey and shape the future of cybersecurity and intelligence together as part of the Nightwing… more
    Nightwing (12/26/25)
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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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  • Cyber Systems Engineer - level 3 or 4

    Northrop Grumman (Dulles, VA)
    …Experience designing systems/networks to use, or hands-on experience with industry platform hardening practices, such as DISA Security Technical Implementation Guide ... systems/networks to use, or scanning, remediating, mitigating, and reporting cybersecurity vulnerabilities discovered through use of audit reduction tools and/or… more
    Northrop Grumman (12/02/25)
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  • Senior Sales Engineer - SLED, Mid Market…

    Proofpoint (Reston, VA)
    …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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  • 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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