• Mid - Level Classified

    The Boeing Company (Berkeley, MO)
    …Specialized United States (US) Infrastructure Operations Organization is currently seeking a ** Mid - Level Classified Linux System Administrator** to ... remediation, and more. **Position Responsibilities:** + Manages all aspects of a Linux environment, including scripting + Analyzes computing requirements + Leads a… more
    The Boeing Company (01/07/26)
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  • Software Engineer (Junior to Mid

    Leidos (Eagan, MN)
    **Description** Leidos is seeking a junior to mid level Software Developer who will be a member of a dynamic team working on the development/maintenance of ... display software within the object-oriented environment (primarily C++/Java) on a UNIX/ Linux platform. + Performing software development as needed for the TFDM… more
    Leidos (12/25/25)
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  • Mid - Level Cloud DevOps Developer

    The Boeing Company (Hazelwood, MO)
    …growth. Find your future with us. The Boeing Company is currently seeking a ** Mid - Level Cloud DevOps Developer** to join the team in **Hazelwood, MO** . ... This individual will join the Information Digital Technology & Security (IDT&S) Classified Cloud Platform team and play a pivotal role in enabling Classified more
    The Boeing Company (12/25/25)
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  • Mid - Level Systems Administrator

    The Boeing Company (Berkeley, MO)
    …Operations (SUSIO) Organization is currently seeking a highly experienced and detail-oriented ** Mid - Level Systems Administrator** to join the team in **Berkeley, ... systems + Provide comprehensive computing support in closed environments + Protect classified and proprietary information + Support security audits as assigned +… more
    The Boeing Company (01/07/26)
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  • Network Engineer - Mid -Career

    Lockheed Martin (Liverpool, NY)
    …tasks and ensure seamless integration and operation of Linux \-based systems\. **A level 3 employee is mid \-career and typically has 3\+ years of related ... and excellence\. **THE WORK** Designs, plans, engineers, and maintains classified network communications systems\. Provides specifications and detailed schematics… more
    Lockheed Martin (11/27/25)
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  • Mid -Senior Network Engineer

    Infinity Systems Engineering (Alexandria, VA)
    …management (switch deployment & configuration) and system administration in a classified environment. The ideal candidate will be a self-starter with the ... and Cisco switches. + Perform systems administration on Windows and Linux platforms (updates, security, troubleshooting, management). + Maintain secure high… more
    Infinity Systems Engineering (01/03/26)
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  • Windows Systems Administrator 3/4 - Secret

    Northrop Grumman (Melbourne, FL)
    …with current version + Knowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk). + Mid to Advanced level Scripting experience + Experience with the ... **Information Technology Professionals, We Want You!** The Northrop Grumman Classified Solutions team is seeking an experienced **Windows Systems Administrator**… more
    Northrop Grumman (01/07/26)
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  • Principal Computer Systems Analyst

    Northrop Grumman (Hollywood, MD)
    …current version + Knowledge of environmental monitoring tools (HBSS/Solar Winds/Splunk). + Mid to Advanced level Scripting experience + Experience with ... not only part of history, they're making history. The Northrop Grumman Classified Solutions team is seeking an experienced **Windows Systems Administrator** to join… more
    Northrop Grumman (01/07/26)
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  • Systems Administrator - TS/SCI with Poly

    Leidos (Chantilly, VA)
    …and troubleshooting in a dynamic setting. The ideal candidate will bring mid - level experience to optimize system performance, implement automation solutions, and ... particularly in pipeline automation and/or VMware environments across Windows and/or Linux platforms. You will work in a collaborative, high-security environment,… more
    Leidos (01/01/26)
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  • Specialist, Systems Engineering

    L3Harris (Greenville, TX)
    …Job Code: 30687 Job Location: Greenville, TX Schedule: 9/80 Job Description: Mid - level Systems Engineer possessing engineering experience to follow system ... level engineering guidance and leadership to contribute within a...designs. + Be comfortable handling a large amount of classified material. + Familiarity with working with Unix/ Linux more
    L3Harris (11/08/25)
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  • Sr. Specialist, Systems Engineer - COMMS…

    L3Harris (Greenville, TX)
    …be considered with the ability to obtain a Top Secret with SCI Job Description: Mid -Senior level Systems Engineer to perform data analysis in tactical data link ... Link (eg Link16, CMF, etc.) or other communcation systems in single and Multi- Level Security environments. + Experience in Software coding and development. + Able to… more
    L3Harris (11/01/25)
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  • Principal Cyber Software Engineer (Active TS/SCI)

    Northrop Grumman (Tampa, FL)
    …Cyber Software Engineer** based out of **Tampa, FL** . _Note: Due to the classified nature of the work being performed, this position does not offer any virtual ... issues and work on projects. + Work on 1-3 mid - to large-scale projects concurrently, assigned from program and...Must possess a current DoD 8570 Certification for IAT Level II or higher within three months of start… more
    Northrop Grumman (10/21/25)
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  • (DOD SkillBridge) End User Support Levels 1/2

    Northrop Grumman (Oklahoma City, OK)
    …on-site at his or her host company performing an individual internship in an entry to mid - level career type role. The service member will be on the job training ... Systems is seeking for an **End User Support Technician Level 1 or Level 2** to join...PC-related hardware and software. Works with Security to remediate classified or unclassified data spillage incidents. + Coordinates with… more
    Northrop Grumman (11/26/25)
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  • Sr. Cyber Systems Engineer (Active TS/SCI)

    Northrop Grumman (Tampa, FL)
    …some of the best work of your career. We are seeking cleared, **Senior level ** **Cyber Systems Engineers** to work on-site at our **Tampa, FL** location. _Note: Due ... to the classified nature of the work being performed, this position...issues and work on projects. + Work on 1-3 mid - to large-scale projects concurrently, assigned from program and… more
    Northrop Grumman (01/01/26)
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  • DevSecOps/System Admin. Engineer

    Lockheed Martin (Colorado Springs, CO)
    …cert\)** to work from our Beautiful Colorado Springs, CO location\. This is an EARLY\- MID CAREER \( level 3\) ROLE where candidates typically require 3\+ years of ... As a DevSecOps/Systems Admin\. Engineer you will: * Perform Level two maintenance on mission critical systems\. * Develop,...the ability to automate and fine tune systems * Linux or Red Hat administration experience * Experience with… more
    Lockheed Martin (12/25/25)
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  • (DoD Skillbridge) - Electrical Engineer I or II…

    Northrop Grumman (Chandler, AZ)
    …on-site at his or her host company performing an individual internship in an entry to mid - level career type role. The service member will be on the job training ... to perform analysis, design, and test of complex "system level " designs with a focus on the electrical ground...troubleshooting of networks, Windows systems, and RHEL or other Linux distributions. + Experience with classified test… more
    Northrop Grumman (12/19/25)
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  • Engineer III

    General Atomics (Poway, CA)
    …a DOD security clearance required. **US Citizenship Required?:** Yes **Experience Level :** Mid - Level (3-7 years) **Relocation Assistance Provided?:** ... 0% - 25% **Full-Time/Part-Time:** Full-Time Salary **State:** California **Clearance Level :** Secret **Pay Range Low:** 81,080 **City:** Poway **Clearance… more
    General Atomics (12/11/25)
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  • Scientist, Software Engineering

    L3Harris (Carlsbad, CA)
    …C/C++ embedded systems development. + Proven leadership experience managing small-to- mid -sized software teams. + Familiarity with DoD/National Security Agency ... fuzz testing, sanitizers, and secure coding frameworks. + Comfortable using both Linux and Windows operating systems (including command line) for daily software… more
    L3Harris (01/06/26)
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  • Intermediate Red Team Operator

    Intelligent Waves (Washington, DC)
    **Overview** Intelligent Waves is seeking a ** Mid - Level Red Team Operator** to support a US Courts contract. This hybrid position ( **80% remote** ) requires ... + Ability to secure, configure, deploy, and troubleshoot Windows, Linux , and MacOS systems. + Minimum 4 years of...investigation and must meet eligibility requirements for access to classified information. Only US citizens are eligible for a… more
    Intelligent Waves (12/31/25)
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  • Systems Administrator 3

    Huntington Ingalls Industries (Dayton, OH)
    …Time/Salaried/Exempt Anticipated Salary Range: $76,513.00 - $105,304.00 Security Clearance: Secret Level of Experience: Mid This opportunity resides with Warfare ... + Other IT/technical certifications than listed above. + Experience working in classified environments. + Experience working with NIPR, SIPR, other DoD networks. +… more
    Huntington Ingalls Industries (12/25/25)
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