• Principal Software Engineer

    GliaCell Technologies (Annapolis Junction, MD)
    An active or rein-statable TS/SCI with Polygraph security clearance is REQUIRED. Please do not apply if you currently do not possess this level of clearance. Are you ... a Principal Software Engineer who is ready for a new...on Software & System Engineering in Enterprise and Cyber Security solution spaces. We excel at delivering stable and… more
    GliaCell Technologies (11/10/25)
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  • Principal Elasticsearch Systems Engineer

    Leidos (Bethesda, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal ** **Elasticsearch Systems Engineer** in our **National Security Sector's (NSS) ... Leave, and much more. **Join us and make a difference in National Security !** **Job Summary** The Principal Elasticsearch Systems Engineer role provides support… more
    Leidos (10/30/25)
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  • Principal Engineer - -Digital Engineering

    Marriott (Bethesda, MD)
    …**Stock Package:** Y **Expiration Date:** 11/26/2025 **JOB SUMMARY:** Serves as a technical subject matter expert (SME) for the Digital Web Engineering Platform and ... provides strategic technical advisory and hands-on support for the Marriott.com towards...code. Leads architecture and framework initiatives. Partners with other Principal Engineers, Engineering Directors, Enterprise Architecture and squad Tech… more
    Marriott (10/30/25)
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  • Principal Engineer, Equipment Process

    Catalent Pharma Solutions (Harmans, MD)
    ** Principal Engineer, Equipment Aseptic Filling** **Position Summary:** Catalent, Inc. is a leading global contract development and manufacturing organization (CDMO) ... Catalent Pharma Solutions in Harmans, MD is hiring a Principal Engineer, Equipment who is responsible for aspects of...ambitious hands-on engineer to lead the team from a technical standpoint for an expanding team in an CDMO.… more
    Catalent Pharma Solutions (10/15/25)
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  • Senior Principal Systems Engineer (Onsite)

    RTX Corporation (Fulton, MD)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...and international pursuits and programs. We are seeking a Principal Systems Engineer to work on-site in Fulton, MD.… more
    RTX Corporation (10/26/25)
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  • Principal Systems Engineer (Onsite)

    RTX Corporation (Aberdeen, MD)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...Collins Aerospace, an RTX company, is seeking an experienced ** Principal Systems Engineer** to join the Precision Navigation (PNav)… more
    RTX Corporation (10/09/25)
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  • Principal DevOps Engineer

    GliaCell Technologies (Annapolis Junction, MD)
    Are you a Principal DevOps Engineer who is ready for a new challenge that will launch your career to the next level? + Tired of being treated like a company drone? + ... Technologies focuses on Software & System Engineering in Enterprise and Cyber Security solution spaces. We excel at delivering stable and reliable software solutions… more
    GliaCell Technologies (11/12/25)
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  • Principal Advisor - Batteries

    Pacific Northwest National Laboratory (Annapolis, MD)
    …and dedicated budget. Our Science & Technology directorates include National Security , Earth and Biological Sciences, Physical and Computational Sciences, and Energy ... and efficiency technologies that improve the affordability, reliability, resiliency, and security of the American energy system; and resolving complex issues in… more
    Pacific Northwest National Laboratory (10/17/25)
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  • Principal Network Engineer

    Leidos (Odenton, MD)
    **Description** Leidos is seeking a ** Principal ** **Network Engineer** to join our Defense Enclave Services (DES) team at **Ft. Meade, MD.** This is an exciting ... opportunity to use your technical experience, and leadership to successfully execute Defense Information...Estate users. **CLEARANCE REQUIREMENT:** _Must hold an active Secret security clearance prior to start and be able to… more
    Leidos (10/16/25)
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  • Senior Principal Software Engineer (Onsite)

    RTX Corporation (Fulton, MD)
    …Status Requirements:** The ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as only US citizens are ... eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret...(RTX). We are currently looking for a talented **Senior Principal Software Engineering,** **who is experienced in either C++… more
    RTX Corporation (10/02/25)
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