• 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)
    …RQ212193 **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 (01/02/26)
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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 (12/19/25)
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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 (12/15/25)
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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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  • Principal Software Engineer

    Northrop Grumman (Chantilly, VA)
    …and employ best practices + Demonstrated effective communication skills **Preferred Qualifications:** + Active DoD Top Secret / SCI security clearance + ... **Northrop Grumman Mission Systems** is seeking a **Principal Software Engineer (T03)** to join our team! This position will...with a minimum of 7 years of experience. + Active Secret security clearance required. Active more
    Northrop Grumman (12/23/25)
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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 (01/10/26)
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  • Staff Information Security Engineer

    Zscaler (Mclean, VA)
    …**What We're Looking for (Minimum Qualifications)** + US citizenship with an active US Top Secret ( TS ) clearance (must be maintained) + 5+ years of ... efficient, resilient, and secure. Our cloud native Zero Trust Exchange platform protects thousands of customers from cyberattacks and...departments. We are looking for a Staff Information Security Engineer who will report to the Senior Manager of… more
    Zscaler (01/06/26)
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  • System Engineer - IA Systems

    CACI International (Annapolis Junction, MD)
    …Thin Client, and enhanced VDI (eg, remote GPU and memory scaling). + TS /SCI with Polygraph **System Engineer Level 5** **Responsibilities:** + Identifying and ... System Engineer - IA Systems Job Category: Information Technology...Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel… more
    CACI International (11/19/25)
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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 (01/09/26)
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  • Azure Cloud Engineer - Intermediate Cloud…

    CACI International (Annapolis Junction, MD)
    Azure Cloud Engineer - Intermediate Cloud Engineer Job...or GED or 3 Years Experience and Bachelors + Active TS /SCI (no waiver minimum requirement) + ... Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel...Travel: None * * * **The Opportunity:** The Cloud Engineer will maintain an efficient and cost-effective migration of… more
    CACI International (10/16/25)
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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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  • Systems Engineer (Aoco)

    Noblis (Chantilly, VA)
    …and team to integrate tactical and national capabilities. Required Qualifications + Active Top Secret /SCI clearance with Counterintelligence (CI) Polygraph. ... is seeking an experienced All-Domain Overhead Cooperative Operations (AOCO) Systems Engineer to support our government client on-site in Chantilly, VA.… more
    Noblis (12/17/25)
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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 Lead Engineer - Public Sector

    Lumen (Washington, DC)
    …customers to troubleshoot technical problems Candidate must be a US Citizen with an active Department of Defense TOP SECRET clearance **Compensation** This ... trust and transparency. People power progress. We're looking for top -tier talent and offer the flexibility you need to...will be able to rapidly identify and resolve problems, engineer , identify, and become proficient in the latest technology… more
    Lumen (01/09/26)
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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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  • 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 (01/07/26)
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  • Sr. Software Engineer

    Huntington Ingalls Industries (Annapolis Junction, MD)
    …- TS /SCI clearance with polygraph Clearance: Must possess and maintain an active TS /SCI clearance with Polygraph for consideration Preferred + Experience with ... Required Travel: 0 - 10% Employment Type: Full Time/Salaried/Exempt Security Clearance: TS /SCI with Poly Level of Experience: Mid This opportunity resides with Cyber… more
    Huntington Ingalls Industries (11/21/25)
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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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