• 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 (11/06/25)
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  • Exchange Engineer - Active

    ENS Solutions (Sterling, VA)
    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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  • Microsoft Exchange & Messaging…

    General Dynamics Information Technology (Chantilly, VA)
    …RQ209576 **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 (10/29/25)
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  • Senior Linux Engineer - TS /SCI…

    General Dynamics Information Technology (Chantilly, VA)
    …RQ211516 **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 (12/14/25)
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  • Calling all Mid-Career TS Cleared SW…

    Northrop Grumman (Dulles, VA)
    …development, C++, Bash Scripting experience + _U.S. Citizenship with a current or active Top - Secret clearance at the time of application_ _Principal ... application development, C++, Bash Scripting experience + _U.S. Citizenship with a current or active Top - Secret clearance at the time of application_ This… more
    Northrop Grumman (10/23/25)
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  • Senior Principal Systems Engineer

    General Dynamics Information Technology (Washington, DC)
    …Citizenship Required:** Yes **Job Description:** **Principal Systems Engineer - Messaging - Active Top Secret Required** Seize your opportunity to make a ... Technical Skills** : DoD 8140/8570 IAT III compliance + **Security Clearance Level** : Active Top Secret + **Required Skills and Abilities** : Strong… more
    General Dynamics Information Technology (12/10/25)
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  • Infrastructure Engineer T5

    CACI International (Sterling, VA)
    Active Roles Server, and Privileged Account Management (PAM) **Qualifications:** _Required:_ + Top Secret with SCI eligibility + US citizen + Bachelor's ... Infrastructure Engineer T5 Job Category: Information Technology Time Type:...Time Type: Full time Minimum Clearance Required to Start: TS /SCI Employee Type: Regular Percentage of Travel Required: Up… more
    CACI International (12/11/25)
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  • Staff Information Security Engineer

    Zscaler (Mclean, VA)
    …control processes within the SCIF **Minimum Qualifications** + US citizenship and active US Top Secret ( TS ) clearance (must be maintained) + 5+ years in ... be more agile, efficient, resilient, and secure. Our cloud native Zero Trust Exchange platform protects thousands of customers from cyberattacks and data loss by… more
    Zscaler (10/11/25)
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  • Cloud Support Engineer - Days

    ManTech (Vienna, VA)
    …with Google Workspace or Microsoft Office collaboration tools **Clearance Requirements:** + An active /current Top Secret clearance is required for this ... **MANTECH** seeks a skilled and mission-focused **Cloud Support Engineer (CSE)** to join our team in **Tysons, VA.** The Cloud Support Engineer will support… more
    ManTech (11/22/25)
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  • Lead Information Security Engineer

    Lumen (Herndon, VA)
    …Skills: + Required (education/experience/skills/competencies): + Candidate must be a US Citizen with an active TOP SECRET clearance Preferred: + 5-7 years in ... committed to teamwork, trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to thrive and deliver… more
    Lumen (12/10/25)
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  • Sr Engineer - Federal

    Lumen (Herndon, VA)
    …and wavelength division multiplexing + **Candidate must be a US Citizen with an active TOP SECRET /SCI Level clearance** Preferred Qualifications + Bachelor's ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...world and shape the future. **The Role** The Senior Engineer will participate in multiple team environments and provide… more
    Lumen (12/10/25)
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  • Solution Train Engineer

    SAIC (Chantilly, VA)
    …years or more experience. Relevant experience to be substituted in lieu of degree. + Active Top Secret /SCI clearance with Polygraph. + Proven experience with ... **Description** SAIC is seeking a **Solution Train Engineer ** to support SAIC's Prime Program, Landmark AOS in Chantilly, VA. Landmark AOS is a large SETA program,… more
    SAIC (11/06/25)
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  • Staff Site Reliability Engineer -Federal,…

    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
    Zscaler (11/12/25)
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  • Senior Cybersecurity Engineer

    ManTech (Washington, DC)
    …CCIE Certification **Clearance Requirements:** + Must be a US Citizen and possess an active or current Top Secret clearance. **Physical Requirements:** + ... **MANTECH** seeks a motivated, career and customer-oriented **Senior Cybersecurity Engineer ** to join our team working in the **Washington, DC Navy Yard.** This is a… more
    ManTech (10/30/25)
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  • Information System Security Engineer

    ManTech (Chantilly, VA)
    …Cybersecurity, or other cyber discipline. **Security Clearance Requirements:** + Must have a current/ active Top Secret security clearance with eligibility to ... **MANTECH** seeks a motivated, career and customer-oriented **Information System Security Engineer (ISSE)** to join our team in **Chantilly, VA.** **Responsibilities… more
    ManTech (11/29/25)
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  • GEOINT Systems Engineer

    Sciolex Corporation (Chantilly, VA)
    …stakeholders. + Plan and assess Agile Solution Demos Qualifications & Physical Requirements + Active Top Secret /SCI with Poly + Bachelor's and nine (9) ... ensuring you receive the utmost employee care. Responsibilities As a GEOINT Systems Engineer , will be performing the following functions as a Systems Engineering and… more
    Sciolex Corporation (10/09/25)
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  • Systems Engineer & Process SME

    KBR (Chantilly, VA)
    …Advise on acquisition strategies and source selections as directed. Required Qualifications: + Active TS /SCI + Bachelor of Science/Bachelor of Arts (BS/BA) in ... Title: Systems Engineer & Process SME Belong. Connect. Grow. with...commercial tools + Experience using G-Forge, J-SMART, TIER + Active TS /SCI with Polygraph Belong, Connect and… more
    KBR (11/07/25)
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  • IT Systems Engineer

    SAIC (Chantilly, VA)
    …online operations This position is located in **Chantilly, VA** and requires an ** active TS /SCI clearance with Polygraph** . Job responsibilities include, but ... **Description** SAIC is seeking an **IT Systems Engineer ** to develop updated guidance for online operations...integration of new technologies with existing systems. **Qualifications** + Active TS /SCI with Polygraph. + Bachelors and… more
    SAIC (09/24/25)
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  • Senior Network Engineer

    Nightwing (Sterling, VA)
    …matter expert for business development / proposal efforts **What You Bring:** + Active TS /SCI with Polygraph + Bachelor's Degree in Information Technology, ... Rapid7, XACTA, Splunk, Snort, Wireshark + Database/Ops: MySQL, Oracle, SQL Server, Active Directory, Exchange + Forensics/Pen Testing: Encase, FTK, IDAPro,… more
    Nightwing (09/17/25)
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  • Data Engineer

    ManTech (Chantilly, VA)
    …Data certification are a plus **Clearance Requirements:** + Must possess a current and active TS /SCI with polygraph **Physical Requirements:** + Must be able to ... **MANTECH** seeks a motivated, career and customer-oriented **Data Engineer ** to join our Data and AI Practice...time + Must be able to communicate, converse, and exchange information with peers and senior personnel + Constantly… more
    ManTech (11/15/25)
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