NewPlant Radiological Integration Engineer System OnePlant Radiological Integration EngineerBellevue, WARemote$69–$115 / hourJob Title: Plant Radiological Integration Engineer Type: Contract Compensation: $69.00 – $115.00 Work Model: Remote – offsite Hours: 40.0System One is hiring a Plant Radiological Integration Engineer to provide the following services that will focus on Nuclear Island System, Structure and Component (SSC) design integration with plant radiological design, analysis, and shielding requirements. Responsibilities Coordinate between design teams working on plant source term and radiological release analysis, risk analysis, plant operations and SSC radiological shielding design teams.
NewCivil Project Engineer - Land Development Atwell, LLCCivil Project Engineer - Land DevelopmentKirkland, WA$105,000–$140,000 / yearAtwell, LLC is a bold leader in the consulting, engineering, and construction services industry, delivering a broad range of creative solutions to clients in the real estate & land development, and energy markets. Pay Range $105,000—$140,000 USD Atwell Benefits: To attract and retain the best professionals in the industry, we aim to provide an excellent working environment and a progressive benefits program designed to support your personal and professional needs.
NewSenior Project Fuel Facility Engineer C&S CompaniesSenior Project Fuel Facility EngineerSeattle, WA$120,000–$140,000 / yearFor more than 50 years we have been delivering critical infrastructure design, planning and construction services in aviation, civil/site infrastructure, construction and program management, construction/design-build, energy, environmental, facilities, architecture, planning, sustainability, and transportation. The Senior Project Engineer is expected to have good relationships with clients and professionals in the fueling systems industry and will be responsible for generating project opportunities and managing fueling systems projects.
NewMarine Electrical Engineer Entry Level - Seattle, WA GlostenMarine Electrical Engineer Entry Level - Seattle, WASeattle, WAAdvances in power electronics are allowing increased flexibility in electrical generation and distribution system designs that can reduce vessel fuel consumption and emissions and increase reliability. Job Description Glosten is seeking junior or entry-level marine electrical engineers to join our marine engineering group in Seattle, WA, Bellingham, WA, or Providence, RI.
NewSENIOR PROJECT ENGINEER-SEATTLE Lease Crutcher Lewis WA LLCSENIOR PROJECT ENGINEER-SEATTLESeattle, WA$100,000–$135,000 / yearSenior Project Engineers work closely with project engineers, project managers, superintendents, company craftspeople and subcontractors. In addition, they provide support in the following areas: Serve as the technical expert on the project team sharing wisdom and experience with less experienced project engineers.
NewCommercial Electrical Engineer Mastercraft Electric, Inc.Commercial Electrical EngineerPacific, WA$115,000–$155,000 / yearWe strive to create a positive work environment where individuals can grow their careers, develop their technical skills, and contribute to meaningful projects that support our community. The ideal candidate will show a proven ability to multitask, have strong organizational skills, thrive in a fast-paced environment, and have a desire to develop a full in-house design team.
NewMechanical Engineer System OneMechanical EngineerLynnwood, WA$60 / hourThis is a Mechanical Engineering role with a strong CAD and engineering documentation focus , supporting the design and development of mechanical, electrical, and electromechanical products. Work from on-hand parts, photographs, engineering sketches, and working prototype parts and assemblies to develop accurate drawings.
Senior Safety Methods Engineer System OneSenior Safety Methods EngineerBellevue, WA$37–$74 / hourThe engineer also builds automated, repeatable workflows, documents methodologies and assumptions, collaborates across disciplines to align methods with design and safety analysis, and follows SQA/NQA-1 practices to ensure traceability, configuration control, and reproducibility. Responsibilities include running steady-state and transient analyses to assess model performance and fidelity needs, integrating closure models and empirical correlations into existing frameworks, and identifying gaps through sensitivity studies to drive method improvements.
Principal Engineer, Seismic CSA Integration and Oversight System OnePrincipal Engineer, Seismic CSA Integration and OversightBellevue, WARemote$69–$115 / hourPerform technical reviews of work products, including seismic analysis, soil-structure interaction (SSI) analysis, and probabilistic assessments. Support the development of plant level requirements and strategies related to seismic design and licensing activities for advanced nuclear reactor projects.
NewNuclear 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.
Senior Engineer, Plant Thermal Hydraulics Validations System OneSenior Engineer, Plant Thermal Hydraulics ValidationsBellevue, 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.
Senior Engineer, Plant Thermal Hydraulic Methods System OneSenior Engineer, Plant Thermal Hydraulic MethodsBellevue, WARemote$56–$95 / hourDemonstrated experience in developing or improving analysis methods, including numerical scheme development, closure model formulation, and stability/accuracy optimization strategies. Formulate and integrate closure models and empirical correlations (e.g., heat transfer, pressure drop, mixing, component-level physics) into existing analysis frameworks.
NewPlant Integration Engineer – Steam & Power Systems System OnePlant Integration Engineer – Steam & Power SystemsBellevue, WARemote$56–$96 / hourMinimum 10 years of experience in nuclear power plant design, commercial power generation, power plant modifications, oil & gas, refining, chemical processing, or large industrial process facilities. Experience with: Steam cycle systems, Heat exchangers, Thermal energy storage, Molten salt systems, Balance of Plant (BOP), Energy Island design, Nuclear Island integration.
Principal Engineer, Plant Design Integration System OnePrincipal Engineer, Plant Design IntegrationBellevue, WARemote$69–$116 / hourThe ideal candidate will bring a broad nuclear engineering background, strong knowledge of NRC regulations, and the ability to lead cross-functional technical decisions affecting the overall plant design. Responsibilities: Support the development and maintenance of the Reactor Plant architecture and programs, ensuring integration of complex technical areas spanning design, analysis, licensing, and testing.
NewSenior Welding Engineer System OneSenior Welding EngineerBellevue, WA$56–$95 / hourSystem One is seeking a Senior Welding Engineer for a yearlong contract role to work as part of a high-functioning team of engineers focused on materials processing, supply chain development and supplier qualification for next generation material and components for sodium-cooled fast reactors. Oversee test programs for qualification of welds, including mechanical properties, burst testing, thermal creep, creep-fatigue, neutron irradiation, thermal aging, and sodium exposure.
NewSenior Mechanical Design Engineer System OneSenior Mechanical Design EngineerBellevue, WA$52–$85 / hourCoordinate and utilize inputs and requirements from Engineering and Project teams to produce equipment and components design solutions, including drawings, models, and specifications. 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.
Plant Integration Engineer, Electrical System OnePlant Integration Engineer, ElectricalBellevue, WA$69–$115 / hourSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Review electrical system design deliverables such as procurement specifications, requirements documents, system design descriptions, FMEA, calculations, and single-line diagrams.
NewTest Engineer System OneTest EngineerBellevue, WA$52–$85 / hourThe selected candidate will work closely with multidisciplinary engineering teams, scientists, and technicians to ensure testing is completed safely, accurately, and in accordance with project requirements. Bachelor's degree in Mechanical Engineering, Nuclear Engineering, Electrical Engineering, Chemical Engineering, or a related engineering discipline.
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.
NewSenior Safety Analysis Engineer, Nuclear System OneSenior Safety Analysis Engineer, NuclearBellevue, WARemote$69–$115 / hourThis contract Safety Analysis Engineer role performs deterministic nuclear safety analysis and transient/accident modeling (RELAP5-3D or similar) to support U.S. NRC licensing submittals. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.