Licensed Exam and Exam Program Developer System OneLicensed Exam and Exam Program DeveloperBellevue, WARemote$69–$115 / hourPrepare NRC-facing regulatory documents related to the examination program (e.g., topical reports, white papers, exemption requests, program descriptions) and support those documents through NRC staff review and interactions. Author facility-level NRC operator examination products, including written examination outlines, written exams, job performance measures (JPMs), and dynamic simulator scenarios.
Senior Fuel Handling System Design Engineer System OneSenior Fuel Handling System Design EngineerBellevue, WARemote$69–$115 / hourSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Develop analyses such as thermal, seismic, structural, pipe stress, heat transfer, and integrate results into plant design delivery.
Nuclear Plant Integration Engineer (Test Abstracts and Specifications) System OneNuclear Plant Integration Engineer (Test Abstracts and Specifications)Bellevue, WARemote$69–$115 / hourSystem One is seeking an experienced Nuclear Plant Integration Engineer to coordinate and support the creation, development and management of post-construction and startup test abstracts and test specifications for our client’s Advanced Reactor Demonstration project. The primary focus of this role is developing and fortifying the framework, across the system design engineering teams, for creation and authorship of test procedures, test abstracts and test specifications.
Materials Engineer System OneMaterials EngineerBellevue, WARemote$36–$95 / hourPerform scientific analysis of reports and test data (e.g., metallography, non-destructive inspection, mechanical properties, ductility) and generate technical specifications to document new knowledge related to reactor design and qualification. This role will work as part of a high functioning team of engineers focused on materials, processes, supply chain development and supplier qualification for next generation material and components for sodium cooled fast reactors.
Mechanical Systems Engineer System OneMechanical Systems EngineerBellevue, WARemote$62–$102 / hourProvide technical direction and oversight of supplier projects, working with the Contract Administrator and Supplier Project Engineer to ensure delivery of data and other deliverables, as well as coordination and performance of technical reviews of deliverables. Generate design packages for systems, sub-systems, and equipment designs including coordination of calculations, design reports, mechanical drawings, and engineering design.
Senior Fuel Handling Mechanical Design Engineer System OneSenior Fuel Handling Mechanical Design EngineerBellevue, WARemote$56–$95 / hourWorking experience with design codes such as the ASME Boiler and Pressure Vessel Code Section III, or Section VIII is preferred but not required. Support continuous learning and application of nuclear industry best practices to maintain the highest quality of engineering design and proactively identify process change/enhancement opportunities.
Nuclear Shielding and Criticality Engineer System OneNuclear Shielding and Criticality EngineerBellevue, WARemote$73–$121 / hourPerform radiation shielding design and analysis for advanced nuclear reactors, including calculating dose rates, activation rates, neutron fluence rates, and energy deposition rates. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
In-Vessel Transfer Machine (IVTM) Test Engineer System OneIn-Vessel Transfer Machine (IVTM) Test EngineerBellevue, WARemote$46–$77 / hourThis role leads test campaigns from planning through execution, working closely with multidisciplinary teams to ensure testing is performed safely, efficiently, and in accordance with applicable quality and regulatory requirements. The IVTM Test Engineer will work as part of a high-performing team of engineers and scientists, using their testing experience to guide and inform the development of the in-vessel transfer machine.
Senior Structural Analyst System OneSenior Structural AnalystBellevue, WARemote$56–$95 / hourThis role focuses on performing structural and finite element analyses (FEA) of reactor vessels, reactor internals, containment structures, and nuclear island components operating in high-temperature and radiation environments. The ideal candidate will have extensive experience with structural mechanics, ANSYS, ASME design codes, and engineering analysis for complex mechanical systems.
Nuclear Maintenance & Technical Training Developer / Instructor (Electrical) System OneNuclear Maintenance & Technical Training Developer / Instructor (Electrical)Bellevue, WARemote$56–$95 / hourIncorporates information gained from INPO Significant Operating Experience Reports, NRC Circulars, Bulletins, and Information Notices, plant design changes, plant procedure changes and revisions, new regulations, and training effectiveness reports into the training program and various training material. Provides training and instruction on Electrical Systems including operation, maintenance, troubleshooting, and repair of nuclear plant electrical systems such as pumps, valves, turbines, and heat exchangers.
Fuel Handling System Design Engineer System OneFuel Handling System Design EngineerBellevue, WARemote$52–$85 / hourSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Develop analyses such as thermal, seismic, structural, pipe stress, heat transfer, and others, integrating results into plant design delivery.
NewFuel Handling Mechanical Design Engineer System OneFuel Handling Mechanical Design EngineerBellevue, WARemote$52–$86 / hourSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Complete design through calculations, developing drawings, using and writing software and commercially available engineering tools.
Senior Engineer, Plant Thermal Hydraulics Methods System OneSenior Engineer, Plant Thermal Hydraulics MethodsBellevue, WARemote$52–$85 / hourOther engineering activities include, but are not limited to, system transient codes development and maintenance, performing reactor transient analyses, code benchmark with Integral Effect Tests (IETs) or Separate Effect Tests (SETs), scaling analysis, software commercial-grade dedication, contributing to code assessment and adequacy evaluation, as well as performing verification and validation activities. Requirements Degree in Mechanical, Nuclear, Chemical Engineering, or similar fields, with 5+ years of experience in system-level thermal hydraulic modeling and method development for nuclear or complex energy systems.
Plant Radiological Integration Engineer System OnePlant Radiological Integration EngineerBellevue, WARemote$69–$115 / hourResponsibilities Coordinate between design teams working on plant source term and radiological release analysis, risk analysis, plant operations and SSC radiological shielding design teams. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
Senior Engineer, Plant Thermal Hydraulics Validation System OneSenior Engineer, Plant Thermal Hydraulics ValidationBellevue, WARemote$56–$95 / hourDefine validation needs, develop test requirements, and collaborate closely with test engineering teams to ensure alignment between model gaps and experimental programs. Apply and improve SQA and NQA1 modeling quality practices and ensure traceability and configuration control of analysis inputs, models, and results.
I&C Design Engineer System OneI&C Design EngineerBellevue, WARemote$52–$85 / hourYou will report directly to the Non-Safety I&C Manager and collaborate with a dedicated team of scientists and engineers, driving the future of Generation IV advanced nuclear reactor technologies. This opening plays a pivotal role in advancing technology for Sodium Fast Reactor systems, focusing on system design, prototype development, integration, and commissioning.
Nuclear Methods Engineer System OneNuclear Methods EngineerBellevue, WARemote$52–$85 / hourDesign and execute sensitivity studies to understand the effects and validity of various modeling assumptions, including meshing, physics coupling, transport options, cross section preparation, fission product models, spatial kinetics, etc., and adjust methods as necessary. Experience in nuclear design/analysis methodologies including criticality, flux/power distributions, fuel management optimization, reactivity coefficients, shielding, activation, control rod worth, detector response, and uncertainty analysis.
Sodium Fire Design and Analysis Engineer System OneSodium Fire Design and Analysis EngineerBellevue, WARemote$102–$130 / hourOther engineering activities include, but are not limited to, contributing to the development of computational methodologies and models, contributing to software commercial grade dedication, participating in hazard analysis, participating in Phenomena Identification and Ranking Table (PIRT) exercises, participating in Structures, Systems and Components (SSC) classification, developing analytical methods, performing analysis of sodium fire as well as verification and validation activities. The successful candidate will be responsible for developing sodium fire modeling methodologies, performing commercial grade dedication of sodium fire modeling codes, and performing sodium fire modeling calculations to support our client’s design and licensing.
NewThermal Analysis Engineer System OneThermal Analysis EngineerBellevue, WARemote$52–$85 / hourPerform thermal modeling of fluid-structure interfaces, including metallic structure thermal problems with structure conductive heat transfer, air convective heat transfer, radiation, and sodium-structure heat transfer modes. Work with our client’s component design leads and analysis engineers to evaluate specific component issues, develop local models or modify existing, and provide insights and feedback to design teams for action.
Sodium Fire Analysis Engineer System OneSodium Fire Analysis EngineerBellevue, WARemote$56–$95 / hourOther engineering activities include, but are not limited to, contributing to the development of computational methodologies and models, contributing to software commercial grade dedication, participating in hazard analysis, participating to Phenomena Identification and Ranking Table (PIRT) exercises, participating to Structures, Systems and Components (SSC) classification, developing analytical methods, performing analysis of sodium fire as well as verification and validation activities. Familiarity with functional containment approach and nuclear design, regulatory requirements, and risk-informed performance-based guidance for Non-Light Water Reactors.