• Principal Mechanical Air-Cooling Systems…

    Amazon (Herndon, VA)
    …want to help. You'll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other ... help us deliver the highest standards for safety and security while providing seemingly infinite capacity at the lowest...infrastructure for our data centers. AWS is seeking a Principal , Mechanical Engineer for our team developing… more
    Amazon (10/24/25)
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  • Principal Systems Engineer

    Shuvel Digital (Dulles, VA)
    Job Title: Principal Systems Engineer Location: Dulles, VA - Hybrid Duration: Contract Clearance: Active Secret. Must be able to obtain DHS Suitability. Must be ... introducing new cyber capabilities to address emerging threats. We are seeking a Principal Systems Engineer to assess, design, and develop automated cloud-based… more
    Shuvel Digital (09/25/25)
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  • Space Principal /Sr. Principal…

    Northrop Grumman (Mclean, VA)
    …status and technical performance reviews, analyses and reports **Basic Qualifications:** + ** Principal Systems Engineer ** - Bachelors of Science degree in ... architecture and ConOps/conceptual design + Support integrated computer and network performance and functionality + Provide support to selected...3+ years of experience; or a PhD + **Sr. Principal Systems Engineer ** - Bachelors of Science… more
    Northrop Grumman (11/13/25)
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  • Principal Software Engineer

    ManTech (Reston, VA)
    …in **Reston, VA.** This is an onsite position. The ** Principal Software Engineer ** will work with Network and Systems Engineers to design, build, monitor, ... ManTech seeks a motivated, career and customer-oriented ** Principal Software Engineer ** to join our team… more
    ManTech (09/10/25)
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  • CCSS Principal Systems Engineer…

    RTX Corporation (Springfield, VA)
    …more secure world. Raytheon Field Engineering is anticipating an opportunity for a Principal Systems Engineer . This role is suited for a motivated individual ... Person, or Immigration Status Requirements:** Active and transferable US government issued security clearance is required prior to start date.​ US citizenship is… more
    RTX Corporation (11/13/25)
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  • Senior Principal Azure Cloud…

    ManTech (Chantilly, VA)
    …and maintaining automation scripts in PowerShell, Python, or Azure CLI + Configuring network security groups (NSGs) and application gateways to protect resources ... **MANTECH** seeks a motivated and experienced **Senior Principal Azure Cloud Engineer ** to join...+ Microsoft certifications such as Azure Administrator Associate, Azure Security Engineer Associate, Solutions Expert in Cloud… more
    ManTech (09/16/25)
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  • Principal Infrastructure Lead…

    RTX Corporation (Dulles, VA)
    …of a rapidly evolving global market. We have an immediate need for an ** Principal ** **Infrastructure Lead Engineer - Classified System** to lead and guide a ... 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… more
    RTX Corporation (11/04/25)
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  • Sr. Principal Cyber Software…

    Northrop Grumman (Chantilly, VA)
    …of your career. **Northrop Grumman Mission Systems** is seeking an experienced **Senior Principal Cyber Software Engineer ** to join our team supporting a program ... Possible is our commitment to missions. In rapidly changing global security environments, Northrop Grumman brings informed insights and software-secure technology to… more
    Northrop Grumman (10/21/25)
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  • Test Engineer / Principal Test…

    Northrop Grumman (Newport News, VA)
    …in lieu of degree + All other basic qualifications **Basic Qualifications for a Principal Test Engineer ** + Bachelors in science with 5 years' experience, ... they're making history. As one of the largest global security companies in the world, Northrop Grumman is proud...User Experience (UX) input. **Basic Qualifications for a Test Engineer ** + Bachelors in science with 2 years' experience,… more
    Northrop Grumman (09/17/25)
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  • Principal Exchange Engineer

    ManTech (Chantilly, VA)
    **MANTECH** seeks a motivated, career and customer-oriented ** Principal Exchange Engineer ** to join our team in **Chantilly, VA.** The position is **onsite.** ... + Strong troubleshooting and problem-solving skills + Knowledge of email security technologies, such as email content filtering + CASP+ certification within… more
    ManTech (09/12/25)
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