• 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 (12/18/25)
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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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  • 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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  • 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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  • 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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  • 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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  • 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 (12/16/25)
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  • Cloud Support Engineer

    ManTech (Vienna, VA)
    …Workspace or Microsoft Office collaboration tools **Clearance Requirements:** + An active /current TS is required for this position. **Physical Requirements:** ... **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 (12/13/25)
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  • AI/ML Software Engineer

    Frontier Technology Inc. (Washington, DC)
    …environments. + Knowledge of Infrastructure-as-Code (Terraform, CloudFormation, or CDK). + Active Secret clearance ( TS /SCI preferred). + Bachelor's ... people, process, and technology. FTI is seeking a Software Engineer to design, build, and deploy secure, scalable software...outputs into runtime systems. + Work with serialization and exchange formats such as JSON, Protobuf, GeoJSON, or KML.… more
    Frontier Technology Inc. (12/17/25)
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  • Software Engineer API Developer

    SAIC (Washington, DC)
    …and contributing to the strategic vision of the MARS program **Qualifications** + Active TS /SCI with Polygraph + One of the following certifications: Certified ... **Description** SAIC is seeking **Software Engineer API Developers** to join the Machine-assisted Analytic...+ Strong understanding of API gateway technologies and data exchange protocols Target salary range: $80,001 - $120,000. The… more
    SAIC (10/07/25)
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  • Lead Network and Infrastructure Engineer

    ManTech (Herndon, VA)
    …federal compliance frameworks (FedRAMP, FISMA, CMMC) **Clearance Requirements:** + Must have active TS /SCI with Polygraph **Physical Requirements:** + Must be ... **MANTECH** seeks a motivated, career and customer-oriented **Lead Network and Infrastructure Engineer ** to join our team in **Herndon, VA.** The Lead Network and… more
    ManTech (10/10/25)
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  • Cyber Engineer

    ManTech (Mclean, VA)
    …interpersonal, organizational, writing, and briefing skills **Clearance Requirements** + An active /current TS /SCI with Polygraph clearance is required to be ... **MANTECH** seeks a skilled and innovative **Cyber Engineer ** to support our cybersecurity operations in **McLean, VA.** In this role, you will leverage your… more
    ManTech (12/31/25)
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  • Associate Cloud Engineer

    ManTech (Herndon, VA)
    …Azure, GCP, OCI) and hybrid Cloud solutions **Clearance Requirements:** + Must have active TS /SCI with Polygraph **Physical Requirements:** + Must be able to ... MANTECH seeks a motivated, career and customer-oriented **Cloud Engineer ** to join our team **onsite** in **Herndon, VA or Reston, VA** to support the development… more
    ManTech (11/19/25)
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  • Senior Requirements Engineer

    SAIC (Bethesda, MD)
    …resolve complex concerns associated with pending and/or in-process requirements. **Qualifications** + Active TS /SCI with Poly required. + Bachelors and fourteen ... that will be developed by the development team. + Coordinating and facilitating exchange meetings or forums to determine the needs of customer; consulting with the… more
    SAIC (12/10/25)
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  • Systems Integration Specialist

    CACI International (Reston, VA)
    …capable of working collaboratively with diverse teams. + US Citizen with active TS /SCI clearance (with Polygraph) **_Desired:_** + Understanding of software ... Information Technology Time Type: Full time Minimum Clearance Required to Start: TS /SCI with Polygraph Employee Type: Regular Percentage of Travel Required: Up to… more
    CACI International (11/01/25)
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  • IT Project Lead

    BAE Systems (Washington, DC)
    …eight years position related experience; OR twelve years position related work experience. + An ACTIVE DoD Top Secret security clearance + An IAT II ... defense, aerospace, and security solutions. As one of the top ten defense contractors, we employ a skilled workforce...100,000 people in more than 40 countries. We develop, engineer , manufacture, and support products and systems to protect… more
    BAE Systems (12/06/25)
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  • Staff Solution Consultant

    Trellix (Washington, DC)
    …with cyber threat identification, management, mitigation, and response strategies. + You hold an active TS /SCI clearance with Full Scope polygraph + You hold an ... Data Exchange Layer (DXL). + You have experience with Active Directory, Databases, Virtualization, Cloud Services [i.e., AWS, Azure]) and enterprise networks.… more
    Trellix (11/14/25)
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