• AeroVironment (Arlington, VA)
    …knowledge + Top Secret clearance is preferred. + Knowledge of Linux configurations and security + Experience with Microsoft Defender, Sentinel, network mapping, ... threat mitigation, incident response, at an enterprise level. + Active A+ and/or Net+ certification(s) + Have active...missile systems. Founded in 1971 by celebrated physicist and engineer , Dr. Paul MacCready, we've been at the leading… more
    DirectEmployers Association (12/02/25)
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  • LINUX Engineer - Active

    General Dynamics Information Technology (Washington, DC)
    …Advance how our customers operate while you advance your career. Join GDIT as a Linux Engineer and you will build an impactful career in enterprise IT, ... Requisition:** Regular **Clearance Level Must Be Able to Obtain:** Top Secret/SCI **Public Trust/Other Required:** None **Job Family:** IT...like you. **MEANINGFUL WORK AND PERSONAL IMPACT** As a Linux Engineer , the work you'll do at… more
    General Dynamics Information Technology (11/05/25)
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  • Linux Engineer

    ManTech (Quantico, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Linux Engineer ** to support our current NCIS contract out of **Quantico, VA.** **Responsibilities ... include but are not limited to:** + The Linux Engineer will maintain, update, and secure...PostgreSQL. **Security Clearance Required** : + Must have a current/ active Top Secret with the ability to… more
    ManTech (10/31/25)
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  • Linux Systems Engineer

    SAIC (Arlington, VA)
    …of deep web and dark web. Clearance/Citizenship Requirements: + US Citizenship with an active Top Secret Clearance with ability to obtain SCI ( Active ... **Description** Seeking a Senior Systems/Network Engineer , working with a diverse team of contractors,...day one. + KEY - Advance knowledge of RedHat Linux and RedHat OpenShift. + KEY - Expertise in… more
    SAIC (12/06/25)
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  • ACAS Engineer - Active Top

    ENS Solutions (Washington, DC)
    …to enable secure and reliable operations of enterprise computer systems. Engineer , design, develop, and implement enterprise network cyber defense capabilities to ... flow analysis, packet capture analysis, network proxies, firewalls, anti-virus capabilities, Linux or UNIX command line, and access control lists. Requirements +… more
    ENS Solutions (11/06/25)
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  • Senior Computer Network Defense (CND)…

    V2X (Springfield, VA)
    …applicable remediation guidance. + Security Clearance Requirements: + The position requires an active Top Secret/SCI clearance with the ability to obtain and ... are hiring for a Senior Computer Network Defense (CND) Engineer with an active TS/SCI clearance -...years experience in maintaining and operating Red Hat Enterprise Linux (RHEL) servers. + Shall meet the Cyber IT/Cybersecurity… more
    V2X (12/12/25)
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  • Principal Systems Engineer - active

    V2X (Suitland, MD)
    …Suitland, MD location. The position is required to be onsite. The position requires an active Top Secret/SCI clearance and the ability to obtain and maintain a ... responsibility, and professionalism. We are hiring a Principal Systems Engineer - active TS/SCI clearance to support...with *nix-based OSs such as KVM, Red Hat Enterprise Linux (RHEL), and VMware vSphere ESXi to support implementation,… more
    V2X (11/15/25)
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  • Splunk Engineer - Active TS/SCI…

    ENS Solutions (Washington, DC)
    …system performance and availability, upgrades, and troubleshooting in Windows and Linux Server environments + Experience creating custom dashboards, writing queries ... up alerts and notifications + Familiarity with DoD Risk Management Framework + Top Secret/SCI clearance with the ability to obtain a Counter-Intelligence polygraph +… more
    ENS Solutions (09/26/25)
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  • Security Software Engineer - Red Team…

    Imagine One Technology & Management (Dahlgren, VA)
    …The Security Software Engineer will be expected to: + Debug and reverse engineer software. + Analyze Windows Events and Linux syslog's, boot logs and dmesg ... & Management, Ltd. is seeking one (1) Security Software Engineer . This position is contingent upon award of the...(COAC) graduates. + Bachelor's degree desired Security Requirements: + Active DoD Top Secret clearance required Imagine… more
    Imagine One Technology & Management (09/24/25)
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  • Principal or Senior Principal Network…

    Northrop Grumman (Washington, DC)
    …hire physical if determined necessary by Company, based on OCONUS location. + ** Active ** **DoD** ** Top Secret** clearance (with a background investigation within ... **Principal or Senior Principal Network and Communications Field Service Engineer ** to our team at **RAAF Base Edinburgh** near...determined necessary by Company, based on OCONUS location. + ** Active ** **DoD** ** Top Secret** clearance (with a… more
    Northrop Grumman (12/04/25)
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  • ADC Engineer , Platform Engineering…

    Amazon (Arlington, VA)
    …Emerging Technology (PEET) Amazon Dedicated Cloud team is hiring for an ADC Engineer to support CloudTrail, AWS Config and other AWS services! You'll design, deploy, ... Do you have a deep passion and desire to engineer and operate the world's largest cloud computing infrastructure...implement and operate them. Amazon Web Services is seeking top industry technical experts to grow our team dedicated… more
    Amazon (12/17/25)
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  • System Development Engineer , STRADA…

    Amazon (Arlington, VA)
    …to launch a project on a trajectory to success? Amazon is seeking a Linux /Unix Systems Administrator/ Engineer with the ability to automate day to day tasks ... and/or services from the ground up. A good candidate must have strong Linux /Unix Systems Administration knowledge, including shell scripting, and a proficiency in at… more
    Amazon (12/05/25)
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  • Software Engineer

    Lockheed Martin (Manassas, VA)
    …Work** Lockheed Martin Rotary & Mission Systems is seeking a full\-time Software Engineer \. In this role, you will perform software development tasks supporting Navy ... experience and knowledge of coding in Java/C\+\+ on a Linux Operating System\. This position is located at a...The selected candidate will be required to hold an active government Secret security clearance\. **Why Join Us** Your… more
    Lockheed Martin (11/19/25)
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  • Sr. DevSecOps Engineer

    Lockheed Martin (Manassas, VA)
    …Work Lockheed Martin Rotary & Mission Systems is seeking a full\-time DevSecOps Engineer \. In this role, you will perform DevSecOps tasks supporting Navy programs\. ... will have experience and knowledge of DevSecOps in a Linux environment\. This position is located at a facility...The selected candidate will be required to hold an active government Secret security clearance\. Why Join Us Your… more
    Lockheed Martin (11/13/25)
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  • Software Engineer /Systems Administrator

    Cinteot (Springfield, VA)
    Software Engineer / Systems Administrator (location: Springfield, VA) The selected individual will be responsible to support the Framework Services / Platform and ... problems with Microsoft Exchange, Microsoft Windows 2012 Server, and Active Directory and other Windows based applications. Team members...Oriented (OO) using C#, Java or C++ + PowerShell, Linux Shell Script, SQL, PL/SQL + Web development (PHP,… more
    Cinteot (11/06/25)
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  • Integration and Test Software Engineer

    CACI International (Fairfax, VA)
    …Red Hat Linux , versions 6-9 + Experience with Windows Server Active Directory + Experience with virtual hosting environments, VMware and/or Kubernetes + ... Integration and Test Software Engineer Job Category: Engineering Time Type: Full time...Time Type: Full time Minimum Clearance Required to Start: Top Secret Employee Type: Regular Percentage of Travel Required:… more
    CACI International (12/17/25)
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  • Systems Engineer -MECM

    Alaka'ina Foundation Family of Companies (Washington, DC)
    …REQUIRED CITIZENSHIP AND CLEARANCE: + US Citizenship required. + Must have an active Top -Secret clearance. The Alaka`ina Foundation Family of Companies (FOCs) is ... Systems Engineer -MECM Location DC - Washington Job Code 13545...but not limited to extensive engineering of Windows and Linux operating systems. + Installing, configuring and tuning operations… more
    Alaka'ina Foundation Family of Companies (11/24/25)
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  • Data Center Engineer (Infrastructure/Cloud)

    KBR (Washington, DC)
    Title: Data Center Engineer (Infrastructure/Cloud) Belong. Connect. Grow. with KBR! KBR's National Security Solutions team provides high-end engineering and advanced ... production infrastructure services that support highly available, private cloud, active - active data center operations, within the constraints...40 hour per week Qualifications : Required: + Clearance: Top Secret with SCI + 5 to 8 years… more
    KBR (10/15/25)
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  • Dev Ops Engineer - Mid

    Amentum (Washington, DC)
    As a Top Secret cleared DevOps Engineer for...in Washington, DC at the customer facility. **Requirements:** + Active Top Secret with SCI eligibility + ... services using infrastructure as a service provider. Configures and manages Linux -based servers to serve a dynamic website. Debugs cluster-based computing… more
    Amentum (09/27/25)
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  • ISSO/Systems Security Engineer

    UIC Government Services and the Bowhead Family of Companies (Dahlgren, VA)
    **Overview** **ISSO/SYSTEMS SECURITY ENGINEER (RDTE)** Bowhead is seeking a skilled full-time ISSO/Systems Security Engineer to join our team in Dahlgren, VA. ... administration concepts for operating systems such as but not limited to Unix/ Linux , IOS, Android, and Windows operating systems. **Preferred:** + Experience with… more
    UIC Government Services and the Bowhead Family of Companies (12/18/25)
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