• Zscaler (Washington, DC)
    …control processes within the SCIF **Minimum Qualifications** + US citizenship and active US Top Secret ( TS ) clearance (must be maintained) + 5+ years in ... resilient, and secure. The pioneering, AI-powered Zscaler Zero Trust Exchange platform, which is found in our SASE and...strategy. We are looking for a Staff Information Security Engineer who will operate as a vulnerability management … more
    DirectEmployers Association (10/11/25)
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  • Zscaler (Mclean, VA)
    …services within classified environments **What We're Looking for (Minimum Qualifications)** + ** Active Secret Security Clearance required and must be maintained ... levels and monthly + Information Assurance Technician Level 2 certification and Top Secret security clearance \#LI-Onsite \#LI-YC2 Zscaler's salary ranges are… more
    DirectEmployers Association (10/03/25)
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  • Systems Engineer SME - Exchange

    General Dynamics Information Technology (Washington, DC)
    …**Job Description:** **Senior Principal Systems Engineer - Exchange Messaging - Active Top Secret Required** Seize your opportunity to make a ... personal impact as a **Senior** **Principal Systems Engineer for Exchange Messaging** with GDIT. We're...8140/8570 IAT III compliance + **Security Clearance Level** : Active Top Secret + **Required… more
    General Dynamics Information Technology (10/06/25)
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  • Exchange Engineer - Active

    ENS Solutions (Washington, DC)
    Our work depends on an Exchange Engineer joining our team to support Government activities in Washington, DC, Sterling, VA, or Annapolis Junction, MD As an ... Exchange Engineer supporting the Government, you will...production networks + Experience with PowerShell + Experience with Active Directory Benefits Essential Network Security (ENS) Solutions, LLC… more
    ENS Solutions (10/16/25)
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  • Exchange Engineer - TS /SCI

    General Dynamics Information Technology (Sterling, VA)
    …RQ206873 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... and tomorrow is smarter. Our work depends on an Exchange Engineer joining our team to support...Systems Engineering area of responsibility **WHAT YOU'LL NEED:** + Active TS /SCI clearance and ability to obtain… more
    General Dynamics Information Technology (10/15/25)
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  • Exchange Engineer - TS /SCI

    General Dynamics Information Technology (Sterling, VA)
    …RQ208844 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... and tomorrow is smarter. Our work depends on an Exchange Engineer joining our team to support...user problems (ServiceNow) as needed **What you'll need:** + Active TS /SCI clearance and ability to obtain… more
    General Dynamics Information Technology (10/15/25)
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  • Microsoft Exchange & Messaging…

    General Dynamics Information Technology (Chantilly, VA)
    …RQ205153 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... Experience with Windows DNS and DHCP + Experience integrating Exchange with Active Directory, Azure AD, and...DoD 8570/8140 certification + BA/BS (or equivalent experience) + TS /SCI with Polygraph + Location: On Customer Site +… more
    General Dynamics Information Technology (08/12/25)
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  • Messaging Services - Systems Engineer

    General Dynamics Information Technology (Annapolis Junction, MD)
    …RQ208522 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... **US Citizenship Required:** Yes **Job Description:** Messaging Services - Systems Engineer Deliver simple solutions to complex problems as a Messaging Services… more
    General Dynamics Information Technology (10/09/25)
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  • IT Engineer - Microsoft Enterprise Systems…

    General Dynamics Information Technology (Fort Belvoir, VA)
    …RQ203477 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... of experience** in systems administration, with demonstrated Tier 2 support capabilities. + ** Active TS /SCI with Polygraph clearance.** + **Current DoD 8570 IAT… more
    General Dynamics Information Technology (10/14/25)
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  • Linux Engineer - TS /SCI…

    General Dynamics Information Technology (Chantilly, VA)
    …RQ207328 **Type of Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret SCI + Polygraph **Public Trust/Other Required:** None **Job ... Training within six (6) months of Hire Date. + Security Clearance Level: TS /SCI with Polygraph is required. Successful candidates are expected to have related… more
    General Dynamics Information Technology (09/16/25)
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  • Systems Engineer IV - Pipeline ( TS

    COMSO, Inc (Fort Meade, MD)
    Systems Engineer IV - PIPELINE ( TS /SCI w/...Alaska. We are honored to be recognized as a Top Workplace for seven years running by the Baltimore ... Sun Media Group. **SECURITY CLEARANCE IS REQUIRED: TS /SCI w/ POLYGRAPH BEFORE CONSIDERATION** This position is contingent...years of relevant experience. + Experience as a systems engineer on one or more IT platforms is required.… more
    COMSO, Inc (09/02/25)
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  • System Architect IV-Pipeline ( TS /SCI…

    COMSO, Inc (Fort Meade, MD)
    System Architect IV-Pipeline ( TS /SCI w/Polygraph) FORT MEADE, MD (http://maps.google.com/maps?q=FORT+MEADE+MD+USA+20755) Job Type Full-time Description COMSO, Inc. ... Alaska. We are honored to be recognized as a Top Workplace for seven years running by the Baltimore...the Baltimore Sun Media Group. **SECURITY CLEARANCE IS REQUIRED: TS /SCI w/ POLYGRAPH BEFORE CONSIDERATION** This position is contingent… more
    COMSO, Inc (08/29/25)
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  • Information Systems Security Manager (ISSM) 2…

    Amentum (Fort Meade, MD)
    …security incident management, and PKI and authorization services. **Clearance Required:** + Active TS /SCI and a current polygraph **Must be able to:** ... portfolio + Facilitate issue resolution through integrated product teams and Technical Exchange Meetings (TEM) + Provide support for a program, organization, system,… more
    Amentum (09/28/25)
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  • Information Systems Security Manager (ISSM) 3…

    Amentum (Fort Meade, MD)
    …incident management, and PKI and authorization services. * US Citizen with an active TS /SCI with Poly **Other Requirements:** * Perform requirements gathering ... portfolio * Facilitate issue resolution through integrated product teams and Technical Exchange Meetings (TEM) * Provide support for a program, organization, system,… more
    Amentum (08/13/25)
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  • Principal Exchange Engineer

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented **Principal Exchange Engineer ** to join our team in **Chantilly, VA.** The position is **onsite.** ... customer service experience strongly desired **Clearance Requirements:** + US Citizenship required and active TS clearance adjudicated within the last 6 years. +… more
    ManTech (09/12/25)
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  • Secured Conferencing Engineer SETA

    SAIC (Chantilly, VA)
    …associated with IT infrastructure provisioning. US Citizenship required. Active Top Secret /Sensitive Compartmented Information ( TS /SCI) clearance with ... SAIC has an opening for an experienced Secured Conferencing Engineer (SETA) in Chantilly, VA to assist a government...more relevant experience. + Must possess and maintain a Top Secret /Sensitive Compartmented Information ( TS /SCI)… more
    SAIC (10/01/25)
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  • Software Engineer /Systems Administrator

    Cinteot (Springfield, VA)
    …Linux Administration experience Education: Bachelor (or 4 years additional experience) Security Clearance: Top Secret with SCI and Full Scope Poly Benefits: + ... Software Engineer / Systems Administrator (location: Springfield, VA) The...install, configure, troubleshoot, diagnose, and resolve problems with Microsoft Exchange , Microsoft Windows 2012 Server, and Active more
    Cinteot (08/07/25)
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  • Senior Systems Engineer

    Leidos (Arlington, VA)
    …integration, verification and validation, and deployment of operational systems **Basic Qualifications** + Active and current Top Secret . + BS degree and ... currently has an opening for a cleared **Senior Systems Engineer ** . This is an exciting opportunity to use...with computer networking. + Expertise with Cloud Architecture. + Active and current TS /SCI clearance. + Experience… more
    Leidos (10/18/25)
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  • Sr. Principal Cyber Software Engineer (AHT)

    Northrop Grumman (Washington, DC)
    …Information Assurance Vulnerability Alert (IAVA) policy + Security+ certification + Must have an active Top Secret /SCI clearance with Polygraph + Able to ... RELOCATION ASSISTANCE: Relocation assistance may be available CLEARANCE TYPE: Top Secret TRAVEL: No **Description** At Northrop Grumman, our employees have… more
    Northrop Grumman (10/04/25)
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  • Machine Learning Engineer

    William C Brown Inc (Springfield, VA)
    …Required Location Springfield Full-Time/Part-Time Full-Time Exempt/Non-Exempt Exempt Security Clearance Requirements Active TS / SCI Clearance. This position is ... safe and tomorrow is smarter. Our work depends on TS /SCI cleared Machine Learning Engineer joining our team to support our intelligence customer inSpringfield,… more
    William C Brown Inc (09/16/25)
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