• Fannie Mae (Washington, DC)
    …maintaining hardware, technology, and/or processes. *THE IMPACT YOU WILL MAKE* The * Principal Engineer (Director IC), Exchange Platform (APIs, Files, AI ... requirements, design, and operational information * Ability to frame ideas as systems and analyzing the inputs, outputs, and process Tools * Skilled in Excel *… more
    DirectEmployers Association (10/17/25)
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  • Fannie Mae (Washington, DC)
    …platforms, software, and applications. *THE IMPACT YOU WILL MAKE* The Platform Engineering, Principal Engineer (Director IC) role will offer you the flexibility ... design, and operational information * Experience monitoring and managing operation systems (OS), and staying current on patches, upgrades, and other elements of… more
    DirectEmployers Association (08/22/25)
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  • Washington Metropolitan Area Transit Authority (Greenbelt, MD)
    …fire, operational emergencies or related events. **SUMMARY** The Vehicle Engineer is responsible for ensuring the design and maintenance integrity of rail ... Vehicle Engineer (RAIL) Job ID: 250945 Location: MD -...+ Tests vehicles using various test and data acquisition systems to evaluate operational performance parameters. +… more
    DirectEmployers Association (10/28/25)
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  • Principal Systems Engineer

    RTX Corporation (Sterling, VA)
    …a security clearance **Security Clearance:** DoD Clearance: Top Secret ** Principal Systems Engineer ** **- Operational Expert** This position is within ... and Services (SS&S) business area. SS&S develops and builds simulators and training systems for both military and commercial customers, with the primary focus being… more
    RTX Corporation (11/04/25)
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  • Principal Network Systems

    Saliense Consulting (Arlington, VA)
    …the design, implementation, documentation, and troubleshooting of the enterprise server environment. The Principal Systems Engineer must have the ability to ... package. Saliense is now hiring a Senior Technical Consultant ( Principal Network Systems Engineer ) to...and Lambda + Experience supporting Cloud Architects to provide operational network architectures to meet mission system and development… more
    Saliense Consulting (10/01/25)
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  • Systems Test Engineer

    Northrop Grumman (Chantilly, VA)
    …Mission Systems ** is seeking a candidate to fill a ** Systems Test Engineer / Principal Systems Test Engineer ** position. This position will ... tasking dictated by the customer's mission and a 24/7/365 operational tempo managed by Internal Product Team (IPT) leads...kits. This requisition may be filled at either the ** Systems ** **Test Engineer ** or ** Principal **… more
    Northrop Grumman (10/23/25)
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  • Principal Mechanical Air-Cooling…

    Amazon (Herndon, VA)
    …of air handling infrastructure for our data centers. AWS is seeking a Principal , Mechanical Engineer for our team developing new infrastructure solutions that ... is driving rapid innovation in mechanical cooling and controls systems used by AWS. Our designs are fundamentally changing...to industry advancement A day in the life A Principal , Mechanical Engineer for Air-Cooled Solutions works… more
    Amazon (10/24/25)
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  • Space Principal /Sr. Principal

    Northrop Grumman (Dulles, VA)
    …Write status and technical performance reviews, analyses and reports **Basic Qualifications:** + ** Principal Systems Engineer ** - Bachelors of Science degree ... will also include responsibilities relating to integration, testing, and operational readiness of spacecraft and payloads. Candidate may be...3+ years of experience; or a PhD + **Sr. Principal Systems Engineer ** - Bachelors… more
    Northrop Grumman (10/31/25)
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  • Sr Principal HPC Systems

    Northrop Grumman (Annapolis Junction, MD)
    … risks and propose, plan, and deploy mitigation strategies **Basic qualifications: Sr. Principal Systems Engineer ** + Bachelor's degree in a STEM ... candidates for the position of High-Performance Computing (HPC) **Sr. Principal HPC Systems Engineer ** to support advanced technology development programs.… more
    Northrop Grumman (10/29/25)
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  • Principal Systems Engineer

    Leidos (Fort Meade, MD)
    …**Join us and make a difference in National** **Security!** **Job Summary** As a Principal Systems Engineer , you will be responsible for designing, ... **Leidos** has a new and exciting opportunity for a Principal System Engineer in our **National Security...implementing, and maintaining enterprise-level systems that support mission-critical operations. You will work with… more
    Leidos (09/09/25)
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