• Sallie Mae (Sterling, VA)
    …plan for their future for the better. **What You'll Contribute** The Senior Principal Engineer will be responsible for shaping long-term engineering direction ... Preferred education, skills, and experience. + 10+ years of hands-on software engineering experience, with a consistent record of technical leadership at… more
    DirectEmployers Association (11/11/25)
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  • Principal Software Engineer

    RTX Corporation (Sterling, VA)
    …for a security clearance​ **Security Clearance:** DoD Clearance: Secret ** Principal Software Engineer ** **- Training System Software (Onsite)** ... **Role Description: ** We are searching for a Principal Software Engineer to join...for the design, implementation, and testing of complex multi-platform training device software and their associated user… more
    RTX Corporation (11/19/25)
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  • Principal Software Engineer

    GliaCell Technologies (Columbia, MD)
    Are you a Principal Software Engineer who is ready for a new challenge that will launch your career to the next level? + Tired of being treated like a ... + We will develop and support your own personalized training program to continue your individual growth. + We...amazingly talented people Job Description: GliaCell is seeking a Principal Software Engineer on one… more
    GliaCell Technologies (11/20/25)
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  • Principal Software Systems…

    RTX Corporation (Sterling, VA)
    …security clearance **Security Clearance:** DoD Clearance: Secret Collins Aerospace is looking for a Principal Software Systems Engineer - IPT Lead with a ... and military customers. https://www.collinsaerospace.com/what-we-do/industries/military-and-defense/navigation/airborne-products/attitude-and-heading-reference-system/athena-gs111r-uas-autopilot-adahrs-pnt-hub As a Software Systems Engineer -… more
    RTX Corporation (10/29/25)
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  • Principal Software Engineer

    Leonardo DRS, Inc. (Germantown, MD)
    …and border surveillance. **Job Summary** Join our dynamic radar defense company as a Principal Software Engineer where you'll drive technical vision and ... engineer who can seamlessly bridge the gaps between software , hardware, product strategy, and manufacturing while delivering innovative, secure solutions.… more
    Leonardo DRS, Inc. (10/02/25)
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  • Principal Software Engineer

    RTX Corporation (Fulton, MD)
    …a wholly owned subsidiary of Collins Aerospace/RTX and is currently seeking a ** Principal Software Engineer ** who is enthusiastic, hardworking, and proactive ... environment, directly driving the design, architecture, and development of new software systems and products utilizing these technologies. Solipsys is an industry… more
    RTX Corporation (10/24/25)
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  • Principal Kubernetes Software

    Leidos (Columbia, MD)
    …and make a difference in National Security!** **Job Summary:** Our ideal Software Engineer will have expertise in Kubernetes containerization and orchestration. ... **Description** **Leidos** has a new and exciting opportunity for a ** Principal Kubernetes** **S** **oftware Engineer ** in our **National Security Sector's (NSS)… more
    Leidos (09/04/25)
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  • Senior Principal Software

    RTX Corporation (Fulton, MD)
    …of Raytheon Technologies (RTX). We are currently looking for a talented **Senior Principal Software Engineering,** **who is experienced in either C++ and/or ... Java, with an aptitude to work on software -intense distributed systems** . The successful candidate will execute in direct technical leadership roles on various… more
    RTX Corporation (10/02/25)
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  • Principal Software Engineer

    Huntington Ingalls Industries (Columbia, MD)
    …current Secret or TS level clearance. + 15+ years of experience as a software engineer , designing, developing, and deploying complex backend systems and a ... data solution development and deployment, with expertise in cloud-based services, software and systems engineering, cyber capabilities, and data science. Enlighten… more
    Huntington Ingalls Industries (10/23/25)
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  • Principal Cyber Engineer

    Nightwing (Sterling, VA)
    …in the intelligence community, defense, civil, and commercial markets. ** Principal Cyber Engineer ** Nightwing provides technically advanced full-spectrum ... challenging, meaningful work that is vital to our national security, apply today! ** Principal Cyber Engineer ** Cyber Offense and Defense Experts (CODEX) is… more
    Nightwing (09/12/25)
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  • Principal Systems Engineer

    RTX Corporation (Fulton, MD)
    …Solipsys is a wholly owned subsidiary of Collins Aerospace/RTX and is currently seeking a Principal Systems Engineer to join our team in Fulton, MD who is ... Domestic and international. **Qualifications You Must Have** + Experience as a systems engineer on a software development program + Strong background in… more
    RTX Corporation (11/19/25)
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  • Principal Systems Engineer

    Leidos (Columbia, MD)
    **Description** **Leidos** has a new and exciting opportunity for a ** Principal Systems Engineer ** in our **National Security Sector's (NSS) Cyber & Analytics ... **Join us and make a difference in National Security** **Job Summary:** As a Principal Systems Engineer you will be responsible for designing, implementing, and… more
    Leidos (11/13/25)
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  • Senior Principal Systems Engineer

    RTX Corporation (Fulton, MD)
    …including a mix of domestic and international pursuits and programs. We are seeking a Principal Systems Engineer to work on-site in Fulton, MD. **What You Will ... Do** + Serve as a technical lead and systems engineer on challenging software development projects such as the Common Aviation Command and Control System (CAC2S)… more
    RTX Corporation (10/26/25)
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  • Senior Principal DevOps Lead…

    RTX Corporation (Fulton, MD)
    …market. Collins Aerospace is currently seeking a self-motivated and talented **Senior Principal ** **DevOps Lead Engineer ** who is seeking a challenging new ... Fulton, Maryland. **What You Will Do:** + Enhance and maintain existing software development pipelines and extend the pipelines to include automated deployment and… more
    RTX Corporation (10/17/25)
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  • Principal Systems Engineer

    RTX Corporation (Sterling, VA)
    …eligible for a security clearance **Security Clearance:** DoD Clearance: Top Secret ** Principal Systems Engineer ** **- Operational Expert** This position is ... bugs to design engineering/ software engineering. + Installs and tests software releases on fielded systems, including training local maintenance/operations… more
    RTX Corporation (11/04/25)
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  • Principal Geotechnical Dam Safety…

    AECOM (Germantown, MD)
    …a better world. Join us. **Job Description** **AECOM** is seeking a highly talented Principal Geotechnical Dam Safety Engineer to join the East Region Dams Team. ... hydraulic structures. + Prepare and perform quality reviews of other Engineer 's work on deliverables such design calculations, engineering reports, construction… more
    AECOM (09/13/25)
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  • Principal Systems Engineer (Onsite)

    RTX Corporation (Fulton, MD)
    …a mix of domestic and international pursuits and programs. **We are seeking a Principal Systems Engineer to work onsite** **in Fulton, MD.** **U.S. citizenship ... + In this position, you will serve as a technical lead and systems engineer on challenging software development projects such as the Common Aviation Command… more
    RTX Corporation (10/16/25)
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  • Sr. Principal Engineer - Autonomy

    Oshkosh Corporation (Frederick, MD)
    …utility vehicles and accessories-can be found all over the world.** The Sr Principal Engineer -Autonomy & Active Safety will lead engineering support efforts for ... to the access market. We partner with customers to provide quality equipment, training opportunities and trusted support within the access industry. We are a global… more
    Oshkosh Corporation (11/19/25)
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  • Principal Systems Engineer (MBSE)…

    RTX Corporation (Dulles, VA)
    …that create a safer, more secure world. Raytheon Technologies is seeking a Principal Systems Engineer (MBSE) to provide enterprise-wide systems engineering and ... optimize the performance of complex systems. Work with a variety of software and programming languages to simulate real-world scenarios and predict system behavior,… more
    RTX Corporation (10/13/25)
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  • Senior Principal Systems Engineer

    RTX Corporation (Fulton, MD)
    …and is an industry leader in the development of command and control software systems and operates in a dynamic, complex, fast-paced business environment with both ... In this position, you will serve as a systems engineer with a focus on systems modeling and analysis...a focus on systems modeling and analysis on challenging software development projects. You will be engaged with exciting… more
    RTX Corporation (10/26/25)
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