NewSupplier Project Engineer, Supply Chain System OneSupplier Project Engineer, Supply ChainBellevue, WARemote$69–$115 / hourThe Supplier Project Engineer will provide oversight of supplier activities throughout the project lifecycle, ensuring contract requirements, technical expectations, schedules, and deliverables are successfully achieved. • Demonstrated experience supporting supplier relationships in engineering, manufacturing, or highly regulated industries.
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.
Senior Test and Integration Engineer LeidosSenior Test and Integration EngineerSeattle, WA$107,900–$195,050If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. You'll contribute to a multidisciplinary team focused on testing, integrating, and validating advanced maritime technologies, ensuring system reliability and performance from prototype design to full-scale system deployment for ongoing Navy missions.
Power Electronics R&D Engineer Gables Search GroupPower Electronics R&D EngineerSeattle, WA$180,000–$200,000This role is focused on advanced power electronics, power conversion, AC/DC, DC/DC, HVDC/DC, inverter-based systems, and next-generation high-power conversion platforms for advanced infrastructure, data center power, EV charging, charging systems, and energy storage applications. This is an opportunity to join a newly forming R&D team working on real-world, high-power engineering challenges with strong visibility, global collaboration, and meaningful influence over future power conversion platforms.
NewPrinciple Engineer/Spacecraft Test Development Davron LLCPrinciple Engineer/Spacecraft Test DevelopmentTukwila, WAPRINCIPAL ENGINEER, SATELLITE TEST DEVELOPMENT | SPACECRAFT TEST DEVELOPMENT | TUKWILA, WA | PYTHON | DOORS | JAMA | GSE | SPACECRAFT INTEGRATION AND TEST | QUALIFICATION AND ACCEPTANCE TEST | TEST AUTOMATION | ITAR ELIGIBILITY | ONSITE . In this Principle Engineer/Spacecraft Test Development opportunity, you’ll lead the transition from engineering-driven test approaches to robust, automated qualification and acceptance campaigns that reduce variability and risk while increasing throughput.
I&C Design Engineer Lead System OneI&C Design Engineer LeadBellevue, WARemote$69–$115 / hourCreate and manage detailed technical design documents and generate comprehensive design packages including P&IDs, control system architecture, and instrument installation drawings. Specify instrumentation measurement techniques for sodium fast reactors and energy storage technologies, analyzing measurement range, response time, and accuracy.
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.
NewSoftware Dev Engineer III- #26-18851 US Tech Solutions, Inc.Software Dev Engineer III- #26-18851Seattle, WAThe ideal candidate will have strong experience in Java, JavaScript, AWS cloud technologies, and database systems, along with the ability to debug complex production issues, develop monitoring and automation solutions, and support large-scale enterprise applications. About US Tech Solutions: US Tech Solutions is a global staff augmentation firm providing a wide range of talent on-demand and total workforce solutions.
NewMaintenance Integration Engineer System OneMaintenance Integration EngineerBellevue, WARemote$52–$85 / hourSystem One is seeking an experienced Maintenance Integration Engineer to support the integrated design, maintenance strategy, and operational readiness of an advanced nuclear power plant. This position will coordinate with multidisciplinary engineering teams to ensure plant systems and structures support safe, efficient maintenance and operation throughout the plant lifecycle.
NewComponent Engineer, Nuclear System OneComponent Engineer, NuclearBellevue, 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. This role may require sitting or standing for extended periods, with tasks including bending, grasping, and fine motor control.
NewSenior 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.
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.
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.
NewSenior Structural Analysis Engineer Davron LLCSenior Structural Analysis EngineerSeattle, WASENIOR STRUCTURAL ANALYSIS ENGINEER | TUKWILA, WA | HYBRID | NASTRAN | FEMAP/PATRAN | STATIC ANALYSIS | MODAL ANALYSIS | VIBRATION ANALYSIS | VIBRATION TEST PLANS | STRUCTURAL TEST PROCEDURES | FINITE ELEMENT MODELING (FEM) | LAUNCH LOADS . Located near Seattle, WA with a hybrid schedule, this Senior Structural Analysis Engineer opportunity supports newly awarded programs and rapid delivery timelines.
NewSenior Maintenance Engineer AmrizeSenior Maintenance EngineerBremerton, WAREQUIREMENTS: The position of Senior Maintenance Engineer requires a bachelor's degree, or its foreign equivalent, in Mechanical Engineering, Maintenance Engineering, or a related engineering field, plus 3 years of professional experience in the job offered, as a Mechanical Engineer, Maintenance Engineer, or in a related maintenance position within the cement or mining industry. The position requires 3 years of professional experience with each of the following: 1) Working in a maintenance capacity in the cement or mining industry; 2) Working with ball mill, materials classifiers, large-scale fans, and heavy conveyors; 3) Using SAP for maintenance work orders and parts inventory management; and.
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.
Software Engineer II Pinnacle Technical ResourcesSoftware Engineer IISeattle,, Washington$60–$65 / hourContractorThe specific compensation for this position will be determined by a number of factors, including the scope, complexity and location of the role as well as the cost of labor in the market; the skills, education, training, credentials and experience of the candidate; and other conditions of employment. Successfully placed or hired candidates would only be asked for banking details after accepting an offer from us during our official onboarding processes as part of payroll setup.
NewCommercial Construction Project Engineer HITT ContractingCommercial Construction Project EngineerSeattle, WA$77,000–$82,000 / yearMaster required job-specific and technical skills in order to promote to an assistant superintendent or assistant project manager following the 12-month training program including, but not limited to, the ability to: Set up and maintain jobsite office and all jobsite records, including project directory, construction documents, subcontractor directory, daily reports, submittal logs, RFI logs, subcontractor correspondence, etc. Ability to learn sector- and project-specific software systems, including but not limited to: Microsoft Office 365 (Project, Excel, Word, Outlook, PowerPoint, etc.), ProCore, Adobe Suite, BlueBeam, and JD Edwards software suite.
NewNuclear 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.
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.