• 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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  • Senior Principal Software

    Mastercard (Arlington, VA)
    …and governments realize their greatest potential._ **Title and Summary** Senior Principal Software Engineer , Data Architecture Overview: Mastercard's ... Data & Analytics is seeking a visionary and results-oriented Senior Principal Software Engineer , Data Architecture to lead the design and evolution of… more
    Mastercard (10/17/25)
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  • Principal Software Engineer

    RTX Corporation (Sterling, VA)
    …citizens are eligible 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...locations, regardless of whether the role is designated as on- site , hybrid or remote._** The salary range for this… more
    RTX Corporation (11/19/25)
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  • Sr. Principal Cyber Software

    Northrop Grumman (Chantilly, VA)
    …work of your career. **Northrop Grumman Mission Systems** is seeking an experienced **Senior Principal Cyber Software Engineer ** to join our team supporting ... a Mission Systems Sector site in Chantilly, VA. As a Senior Software Engineer on the Mobile Development team, you will be responsible for the design,… more
    Northrop Grumman (10/21/25)
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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 OR Senior Principal Field…

    Northrop Grumman (Washington, DC)
    …Grumman Aeronautics Systems is looking to add a ** Principal OR Senior Principal Field Service Engineer - Network and Communications** to join our team ... position will receive daily tasking and prioritization from their site lead. The selected candidate will be responsible for...location. _This position can be filled at either the Principal Field Service Engineer - Network and… more
    Northrop Grumman (09/17/25)
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  • Digital Engineer / Principal Digital…

    Northrop Grumman (Mclean, VA)
    …they're making history. Northrop Grumman Defense Systems has a need for a Digital Engineer / Principal Digital Engineer on our Orlando, FL team. This FPGA ... is in Orlando, FL and requires that you work on- site daily. These other locations may also be considered:...We will consider candidates at a Level 2 (Digital Engineer ) or Level 3 ( Principal Digital … more
    Northrop Grumman (11/20/25)
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  • Principal /Sr. Principal Systems…

    Northrop Grumman (Dulles, VA)
    … for the role of Ground Segment Systems Engineer for a Ground/Mission Software program. This role requires on- site , in-person support in a secure facility at ... technical briefings to customers and mission partners **\#NOVASPACE** **Basic Qualifications:** + ** Principal Engineer Level (T3)** - BS in STEM - Science,… more
    Northrop Grumman (10/17/25)
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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 / Sr Principal Vehicle…

    Northrop Grumman (Dulles, VA)
    …processing will be coordinated through program Security. **Basic Qualifications** **:** + ** Principal Engineer ** - Bachelor's degree or higher in Aerospace ... position will support the Space Vehicles throughout I&T, Launch Site Operations, and ideally continue through early phases of...degree and 6 years of applicable experience. + **Sr. Principal Engineer ** - Bachelor's degree or higher… more
    Northrop Grumman (10/31/25)
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  • Principal Mechanical Air-Cooling Product…

    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 ... want to help. You'll join a diverse team of software , hardware, and network engineers, supply chain specialists, security...global knowledge base A day in the life A Principal , Mechanical Engineer for Air-Cooled Solutions works… more
    Amazon (10/26/25)
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  • Principal Engineer , Amazon…

    Amazon (Arlington, VA)
    …that delight our customers and advance our technology. Key job responsibilities As a Principal Software Engineer , you will: Serve as a technical leader ... Description At Amazon, Principal Engineers are both visionary leaders and hands-on...admit the luxury of a conservative approach. Amazon offers software engineers the opportunity to make an impact in… more
    Amazon (11/14/25)
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  • Principal , Mechanical Engineer

    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 ... want to help. You'll join a diverse team of software , hardware, and network engineers, supply chain specialists, security...improvement at scale A day in the life A Principal , Mechanical Engineer for Air Handling works… more
    Amazon (10/30/25)
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  • Principal Mechanical Air-Cooling Systems…

    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 ... want to help. You'll join a diverse team of software , hardware, and network engineers, supply chain specialists, security...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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  • Sr Principal Engineer Mission…

    Northrop Grumman (Chantilly, VA)
    …that do not meet required standards and specifications **Basic Qualifications Sr Principal Engineer Mission Assurance:** + Bachelor's degree in a related ... 9001 / AS9100 Quality Management System certification process. **Preferred Qualifications Sr Principal Engineer Mission Assurance:** + BS Degree in an… more
    Northrop Grumman (09/30/25)
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  • Principal Transportation Engineer

    Parsons Corporation (Centreville, VA)
    …we deliver innovative solutions to the world's most complex transportation challenges. As a ** Principal Transportation Engineer ** , you will play a key role in ... clients. Travel or relocation to supplier, client, or construction site locations may be required. **What You'll Be Doing:**...You'll Be Doing:** + Serve as a discipline Project Engineer on medium to large projects, overseeing the work… more
    Parsons Corporation (10/16/25)
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  • Principal AI Engineer

    Mastercard (Arlington, VA)
    …people, businesses and governments realize their greatest potential._ **Title and Summary** Principal AI Engineer About Mastercard Mastercard is a global ... AI-powered platforms that drive innovation, efficiency, and impact. As a Senior AI Engineer , you will work hands-on with cutting-edge AI tools, large language models… more
    Mastercard (11/03/25)
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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 ... perform installation, operational checkout, and system testing both in-house and on- site as required in accordance with Collins Aerospace and customer requirements.… 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. ... Failure Mode Analyses (participate and/or facilitate), Semi-Quantitative Risk Assessments, site inspection, construction observation, and regulatory compliance activities associated… more
    AECOM (09/13/25)
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  • Principal AI Engineer

    Mastercard (Arlington, VA)
    …people, businesses and governments realize their greatest potential._ **Title and Summary** Principal AI Engineer About Mastercard Mastercard is a global ... platforms to drive innovation and impact. As an AI Engineer , you'll work with cutting-edge tools, large language models...practices * Stay current with advancements in AI and software engineering All About You: * Basic understanding of… more
    Mastercard (10/25/25)
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