• Senior Systems Engineer

    GovCIO (Fairfax, VA)
    **Overview** GovCIO is currently hiring for a Senior Systems Engineer with an active Secret clearance to provide administration and tier 3 operational support ... + Maintain security infrastructure with Group Policy, endpoint scans, and vulnerability scanning, to improve security posture. + Recommend, develop, and test… more
    GovCIO (08/02/25)
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  • Mid- Senior Network Engineer

    Infinity Systems Engineering (Alexandria, VA)
    …with industry standards, company policies, and regulatory requirements. + Conduct network vulnerability assessments and respond to security threats. + Support ... be more with us! Job Summary: We are seeking a skilled Systems Administrator/Network Engineer to join our mission-driven team. This position offers a broad scope of… more
    Infinity Systems Engineering (09/30/25)
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  • Senior Network Engineer - TS/SCI…

    Leidos (Chantilly, VA)
    **Description** Seeking an experienced professional for a ** Senior Network Engineer ** to support mission-critical projects in a secure environment. The ideal ... tuning, troubleshooting, and disaster recovery planning. + Ensure compliance with security standards and protocols (DISA STIGs, RMF). + Collaborate with… more
    Leidos (09/14/25)
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  • Senior Sustainability & Resilience…

    Parsons Corporation (Centreville, VA)
    …looking for. **Job Description:** Parsons is looking for an amazingly talented ** Senior ** **Sustainability & Resilience Engineer /Specialist** to join our team! ... preparing project-specific and programmatic sustainability plans, climate risk and vulnerability assessments, and resilience mitigation plans. + Experience in… more
    Parsons Corporation (07/04/25)
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  • Edge Information Systems Security…

    V2X (Springfield, VA)
    …respect, responsibility, and professionalism. We are hiring an Edge Information Systems Security Engineer (ISSE) - active TS/SCI clearance to support our ... obtain and maintain a Counterintelligence (CI) Polygraph. The Edge Information System Security Engineer (ISSE) provides cybersecurity expertise to edge system… more
    V2X (09/09/25)
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  • WGL - Senior OT Systems Engineer

    AltaGas (Springfield, VA)
    …server infrastructure that supports the organization's OT environment. Responsible for the security , reliability, and performance of the OT environment to ensure the ... grade firewalls, switches, and routers), virtual server infrastructure, cyber security tools and technologies, identity access management systems, OT software… more
    AltaGas (08/07/25)
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  • Information System Security Engineer

    ManTech (Virginia Beach, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Senior Information System Security Engineer (ISSE)** to join our team in **Norfolk, VA.** This ... data security , network security , data loss prevention, cloud security , vulnerability management, configuration management, privacy, and audits + Must… more
    ManTech (09/30/25)
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  • Principal Cyber Security Systems…

    ManTech (Chantilly, VA)
    MANTECH seeks a motivated, career-driven **Principal Cyber Security Systems Engineer ** to join our team in **Chantilly, VA** . This role offers an exciting ... opportunity for an experienced engineer to secure and optimize complex infrastructure in support...protection across enterprise platforms. You will serve as a senior technical leader and mentor, guiding strategic improvements while… more
    ManTech (08/29/25)
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  • Senior Site Reliability Engineer…

    Rubrik (Richmond, VA)
    **About the team:** The Information Security organization advances the overall state of security at Rubrik through critical initiatives and coordination of large ... security projects. Information Security builds technologies, tools,...aid investigation when needed; + Support controlled changes and vulnerability remediation activities; and + Work collaboratively with Information… more
    Rubrik (08/20/25)
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  • Senior Mechanical Engineer

    Leidos (Reston, VA)
    …The Mission Solutions Business Area at Leidos is looking for a Mechanical Engineer to join our Reston, VA based team. The successful candidate will work ... to produce accurate intelligence estimates of standard facility operations (power, HVAC, security , etc.) and equipment + Model different aspects of a facility to… more
    Leidos (09/26/25)
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