• Principal Enterprise Network…

    Applied Research Solutions (Bedford, MA)
    …with a passion for secure, high-stakes systems? We are seeking a Principal -level Network Engineer to lead the design, installation, integration, maintenance, ... our awards and recognition program, and personalized attention from ARS Senior Managers. **Key Responsibilities** + Plan, design, implement, and maintain secure… more
    Applied Research Solutions (12/06/25)
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  • Sr Principal Systems Engineer

    RTX Corporation (Richardson, TX)
    …part of a program to recapitalize with the next-generation capabilities. As our next ** Senior ** ** Principal Systems Engineer ** we will provide the training ... ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as...required, as only US citizens are eligible for a security clearance ** Security Clearance:** DoD Clearance: Top… more
    RTX Corporation (11/01/25)
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  • Unified Communications Engineer

    Amentum (San Antonio, TX)
    …for transformative change. **Responsibilities:** The duties and responsibilities of the Principal Unified Communications Engineer include, but are not limited ... voice, video, and data, global communications network that facilitates collaboration among senior leaders and key staff. The Lone Wolf program boasts a professional… more
    Amentum (12/17/25)
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  • Principal Systems Engineer

    RTX Corporation (Tewksbury, MA)
    …Integrated Air & Missile Defense Systems (IAMDS) department is seeking a ** Principal Systems Engineer ** with technical expertise and systems engineering skills ... 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 (12/12/25)
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  • Principal Test Engineer

    Mercury Systems (Phoenix, AZ)
    Req. Number 25-504 Job Description Job Summary: Mercury Systems is seeking a Principal Test Engineer to lead efforts in developing and executing server system ... role plays a pivotal part in ensuring product reliability, performance, and security across the full engineering lifecycle from concept to sustainment. Job… more
    Mercury Systems (12/12/25)
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  • Principal Embedded Software Engineer

    Silvus Technologies (Irvine, CA)
    …the system including device drivers, networking functions and services, encryption, and security features. This position is fully onsite, Monday through Friday, at ... management software and web interface implementation. + Implementation of different security protocols and encryption algorithms. + Audio streaming and push-to-talk… more
    Silvus Technologies (12/06/25)
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  • Principal Embedded Software Engineer

    Silvus Technologies (Irvine, CA)
    …a pathway to a fulfilling career._ THE OPPORTUNITY Silvus is seeking a full-time Principal Embedded Software Engineer to join our Engineering Group, reporting to ... the Senior Engineering Director for Irvine. The successful individual in...including device drivers, networking functions and services, encryption, and security features. The position is located at Silvus headquarters… more
    Silvus Technologies (12/01/25)
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  • Principal Software Engineer - C,…

    Zscaler (San Jose, CA)
    …speed and agility with a cloud-first strategy. We're looking for an experienced Principal Software Development Engineer to join our ZIA team.You will drive ... cybersecurity. Our Engineering team built the world's largest cloud security platform from the ground up, and we keep...CA office 3 days a week. Reporting to the Senior Director of Software Engineering you'll be responsible for:… more
    Zscaler (11/17/25)
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  • Sr Principal Mechanical Engineer

    RTX Corporation (Tewksbury, MA)
    …integration, and production support. The ADGE department is looking for a full-time Senior Principal Mechanical Engineer to support Patriot GEM-T Missile ... ability to obtain and maintain a US government issued security clearance is required.​ US citizenship is required, as...required, as only US citizens are eligible for a security clearance ** Security Clearance:** DoD Clearance: Secret… more
    RTX Corporation (10/22/25)
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  • Sr. Principal Electrical Engineer IV

    Northrop Grumman (Chandler, AZ)
    …of history, they're making history. **Northrop Grumman Space Systems is currently seeking a Senior Principal Electrical Engineer IV in our Chandler, AZ ... **Mentor other engineers from a technical standpoint as well as perform senior peer review.** **Collaborate early and often with other IPTs, engineering disciplines… more
    Northrop Grumman (11/03/25)
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