Principal Engineer

3 weeks ago

Bellevue, United States System One Full time

Long-term, remote work model contract opportunity

System One is seeking a Fuel Handling Mechanical Design - Principle Engineer for a long-term contract opportunity, with a remote work model. This role is focused on the design of primarily mechanical fuel handling and process systems. You will act as a mechanical design engineer for advanced nculear reactor projects in fuel handling. The successful candidate will integrate and coordinate with engineers working on interfacing systems.

Responsibilities Design of nuclear fuel handling systems and fuel handling sub-systems from requirements through final design.
Coordinate the review of analyses, such as thermal, seismic, structural, pipe stress, heat transfer, and other analyses performed by others and integrate the results into plant design delivery.
Identify and ensure effective application of correct design codes into the design of plant systems such as ASME, ANS, ASTM, IEEE, NFPA, etc.
Provide technical direction and guidance to engineers in applicable nuclear and non-nuclear related design standards.
Analyze and allocate regulatory criteria and standards to complex mechanical and process system design.
Support planning efforts and maintain schedule adherence for design activities within a system, as well as their integration with an overall plant design delivery schedule.
Interface with the design team to create and manage drawing packages of system designs, including but not limited to Piping and Instrumentation Diagrams (P&IDs), 3D models, and system interface drawings.
Interface with design disciplines (such as mechanical, instrumentation and controls, civil, and nuclear) to identify and develop plant design information and specify system design and performance criteria.
Provide technical direction and oversight of supplier projects, working with the contract administrator to ensure delivery of data and other deliverables, as well as coordination and performance of technical reviews of deliverables.
Establish and maintain system requirements and specification documents, such as Engineering Design Specifications for major plant equipment.
Propose and initiate testing programs for plant system qualification, as needed.
Provide Support and oversight during test execution, evaluation of test results, and reporting of test results.
Generate design package for systems, sub-systems, and equipment designs including coordination of calculations, design reports, mechanical drawings, and engineering design specifications.
Develop and review technical design documents, such as System Design Descriptions, Interface Control Documents, Engineering Design Specifications, etc.
Interface with and support licensing activities associated with Safety Analysis Reports.
Support design reviews as plant system and subsystem designs are established and refined.


Ideal Background B.S. in Mechanical or related discipline from an accredited university.
20+ years direct experience with proven mechanical systems design skills.
Demonstrated experience in the design of complex mechanical systems, structures and equipment, particularly nuclear fuel handling systems.
Experience in high temperature and multi-discipline integration highly desired.
Experience in heat transfer and thermal dynamics design
Experience in ASME BPVC, Section III, Division 1 and/or Section VIII.
Previous experience with nuclear reactors, nuclear fuel handling process systems, or similar high-performance system or equipment design is required.
Excellent technical writing, communication, and presentation skills.

Attention to detail and aspiration for technical excellence.
Candidate must be a self-starter and possess ability to coordinate and lead a design team’s effort with minimal direction.
Ability to handle projects that include many competing objectives and design constraints, with ability to resolve conflicts between objectives.
Ability to work on simultaneous tasks that require a multi-disciplinary approach.
Experience working to quality standards on design activities, such as ASME NQA-1 or ISO 9001.

The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork.
Actual position starting level and title will be determined based on assessment of qualifications

  • Sr Principal Software Engineer

    7 days ago

    Bellevue, United States Kelly Science, Engineering, Technology & Telecom Full time

    Job Title: Software Engineer III (Sr Principal Software Engineer)Pay rate: $111 per hourDuration: Until 11/2025W2 contract only (No C2C)Location- Bellevue, WASummary:The Sr. Principal Software Engineer will be responsible for leading the technical development of the software architectures, designs, and implementations of the cloud-based product software for...

  • DevOps Engineer/ Principal DevOps Engineer

    3 weeks ago

    Bellevue, Nebraska, United States Northrop Grumman Full time

    Job Summary:We are seeking a highly skilled DevOps Engineer/ Principal DevOps Engineer to join our team at Northrop Grumman Defense Systems in Bellevue, NE. As a key member of our DevOps Engineering team, you will be responsible for developing and maintaining continuous integration and continuous deployment (CI/CD) pipelines using Jenkins, Ansible,...

  • Software Principal Engineer

    2 weeks ago

    Bellevue, United States Dell Full time

    Software Principal Engineer PowerScale, a Gartner Magic Quadrant leader in Unstructured Data Storage and Management is evolving by re-architecting its stack to cater to the unique demands of the consumer market in the GenAI era. The evolution is driven by efforts to modernize the stack through the development of advanced technologies in data storage...

  • Principal Software Engineer

    4 weeks ago

    Bellevue, Washington, United States Snowflake Computing Full time

    Build the Future of Cloud SecuritySnowflake is revolutionizing the data platform for the most security-sensitive customers. As a Principal Software Engineer - Database Security, you will play a critical role in designing and building highly available, reliable, and secured distributed services and solutions within the global Snowflake platform.Key...

  • Principal Engineer

    3 weeks ago

    Bellevue, United States Talascend Full time

    Talascend is currently seeking a Principal Engineer - Risk-Informed Design and Licensing for a contract opportunity located in Bellevue, WA. OVERVIEW: Our client is seeking a highly motivated Principal Engineer for the Risk-Informed Design and Licensing (RIDL) team on the advanced nuclear reactor projects. In this role, you will be part of our dynamic...

  • Principal Engineer

    3 weeks ago

    Bellevue, United States Talascend Full time

    Talascend is currently seeking a Principal Engineer - Risk-Informed Design and Licensing for a contract opportunity located in Bellevue, WA. OVERVIEW: Our client is seeking a highly motivated Principal Engineer for the Risk-Informed Design and Licensing (RIDL) team on the advanced nuclear reactor projects. In this role, you will be part of our dynamic...

  • Principal Engineer, Software

    4 days ago

    Bellevue, United States Disability Solutions Full time

    At T-Mobile, we invest in YOU! Our Total Rewards Package ensures that employees get the same big love we give our customers. All team members receive a competitive base salary and compensation package - this is Total Rewards. Employees enjoy multiple wealth-building opportunities through our annual stock grant, employee stock purchase plan, 401(k), and...

  • Principal Software Engineer

    3 weeks ago

    Bellevue, Washington, United States Snowflake Computing Full time

    Lead High-Impact InitiativesAs a Principal Software Engineer - Database Security at Snowflake, you will lead highly impactful initiatives from idea formulation to design and implementation.Innovate and Build Secure Distributed ServicesInnovate, design, and build highly available, reliable, and secured distributed services and solutions within the global...

  • Lead Principal Systems Engineer

    3 weeks ago

    Bellevue, WA, United States TerraPower Full time

    Job Title: Lead Principal Systems EngineerTerraPower is a nuclear technology company based in Bellevue, Washington, seeking a highly motivated and forward-thinking professional to lead its System Analysis Team.The Lead Principal Systems Engineer will be responsible for supporting System Design Analysis, Plant Performance Analysis, and the development of...

  • Principal Engineer

    2 weeks ago

    Bellevue, United States System One Full time

    System One is seeking a highly motivated Principal Engineer to join the Risk-Informed Design and Licensing (RIDL) team, focused on advanced nuclear reactor projects. This is a 12-month, onsite contract position in Bellevue, WA. In this role, you will contribute to the implem...

  • Principal Environmental Engineer/Scientist

    3 days ago

    bellevue, United States Exponent Full time

    About Exponent Exponent is the only premium engineering and scientific consulting firm with the depth and breadth of expertise to solve our clients’ most profoundly unique, unprecedented, and urgent challenges.  Our vision is to engage multidisciplinary teams of science, engineering, and regulatory experts to empower clients with solutions that create...

  • Principal Engineer

    4 weeks ago

    Bellevue, Washington, United States System One Full time

    Job Title: Principal Engineer - Risk-Informed Design and LicensingSystem One is seeking a highly motivated Principal Engineer to join the Risk-Informed Design and Licensing (RIDL) team, focused on advanced nuclear reactor projects.This is a 12-month, onsite contract position in Bellevue, WA.Key Responsibilities:Collaborate with the Manager of Risk-Informed...

  • Principal Product Manager

    4 weeks ago

    Bellevue, Washington, United States Walmart Full time

    Job SummaryWe are seeking a highly skilled Principal Product Manager to join our team at Walmart Global Tech. As a key member of our product leadership team, you will be responsible for driving the development and launch of our customer relationship management technology across various global markets.As a Principal Product Manager, you will work closely with...

  • Principal Engineer

    4 weeks ago

    Bellevue, Washington, United States Talascend Full time

    Job SummaryTalascend is seeking a highly motivated Principal Engineer to join our Risk-Informed Design and Licensing team. As a key member of our team, you will play a crucial role in supporting technical oversight, analysis, and coordination activities for advanced nuclear reactor projects.Key ResponsibilitiesCollaborate with the Manager of Risk-Informed...

  • Principal Software Engineer

    4 weeks ago

    Bellevue, Washington, United States Walmart Full time

    Job SummaryWe are seeking a highly skilled Principal Software Engineer to lead the design and development of a Generative AI Image Platform. This platform will be a multi-tenant, cloud-native SaaS solution, designed to scale seamlessly and handle millions of requests while enabling state-of-the-art personalization, recommendation, and ecommerce...

  • Principal Data Scientist

    4 weeks ago

    Bellevue, United States Snowflake Full time

    Build the future of the AI Data Cloud. Join the Snowflake team. The Product Data Science team is looking for a Principal Full-stack Data Scientist to come aboard and be part of some of the foundational areas at Snowflake. In this role, you will work closely with our Product and Engineering teams on core operations and data privacy, security, and governance...

  • Principal Technical Program Manager

    1 month ago

    Bellevue, Washington, United States Wal-Mart Stores , Inc. Full time

    Job Title: Principal Technical Program ManagerWe are seeking a highly skilled and experienced Principal Technical Program Manager to join our team at Walmart Global Tech. As a key member of our organization, you will play a critical role in coordinating and managing the development of large-scale, cross-functional projects in a multi-disciplinary...

  • Principal Software Architect

    4 weeks ago

    Bellevue, Washington, United States Snowflake Computing Full time

    About the RoleWe're seeking a talented Principal Software Engineer to lead our Snowflake Notebooks team. As a technical leader, you'll have a significant impact on the development of our cloud data platform. Your expertise in architecting and coding solutions will help shape our best-of-breed tech stack, including React/Hooks, TypeScript, JAVA, C++, and...

  • Principal Environmental Engineer

    3 weeks ago

    Bellevue, WA, United States TRC Companies Full time

    About TRC CompaniesAt TRC Companies, we're dedicated to delivering innovative, enduring solutions for our clients. As a leading environmental consulting firm, we're committed to making a positive impact on the communities we serve.Our team of experts works closely with clients to develop and implement effective environmental strategies that meet their unique...

  • Principal Environmental Scientist

    4 weeks ago

    Bellevue, Washington, United States Exponent Full time

    About ExponentExponent is a leading engineering and scientific consulting firm that provides innovative solutions to complex challenges. Our team of experts works collaboratively to deliver exceptional results for our clients.Our OpportunityWe are seeking a Principal Scientist/Engineer to join our Environmental & Earth Sciences Practice. In this role, you...