NewSenior Mechanical Design Engineer System OneSenior Mechanical Design EngineerBellevue, WARemote$52–$85 / hourThe ideal candidate has extensive experience in mechanical equipment design, structural analysis, and product development, with the ability to collaborate across multidisciplinary engineering teams to deliver innovative engineering solutions. This role focuses on the conceptual and preliminary design of reactor core components, reactor structures, and Nuclear Island equipment for next-generation nuclear energy systems.
NewMechanical Design Engineer System OneMechanical Design EngineerBellevue, WA$52–$85 / hourYou will work within a high-performing, multi-disciplinary engineering team that includes materials science and thermal-hydraulics experts to develop novel analysis methodologies and support the design of next-generation reactor hardware. This position will report to the MCFR Mechanical Design Manager and play a critical role in the mechanical analysis, scripting, and design scoping of reactor components.
CRD System Design Engineer (Mechanical) System OneCRD System Design Engineer (Mechanical)Bellevue, WARemote$54–$90 / hourThe selected candidate will collaborate with project managers, design engineers, analysts, test engineers, supply chain teams, and other engineering disciplines to support the successful development and deployment of advanced reactor technology. The successful candidate will demonstrate strong technical leadership, engineering excellence, attention to detail, and the ability to thrive in a fast-paced, collaborative engineering environment.
RAC System Design Engineer (Mechanical) System OneRAC System Design Engineer (Mechanical)Bellevue, WARemote$54–$90 / hourThe selected candidate will collaborate with project managers, design engineers, analysts, test engineers, and multidisciplinary engineering teams to support the successful design, integration, and deployment of this first-of-a-kind reactor technology. This role will support the ongoing development of a passive reactor cooling system designed to continuously remove heat through natural convection, providing safe and reliable cooling without reliance on pumps or operator actions.
NewSenior Mechanical Engineer System OneSenior Mechanical EngineerBellevue, WARemoteSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Working experience with ASME Boiler & Pressure Vessel Code Section III.
NewSenior Mechanical Engineer (Vessels) System OneSenior Mechanical Engineer (Vessels)Bellevue, WARemote$69–$115 / hourPerform detailed design, analysis, and documentation for ASME Section III Class HB and/or Section VIII division 2 vessels, including nozzles, flanges, support brackets, and other support elements used in nuclear facilities. Minimum of six years of equipment / component design experience for level 10 or minimum of ten years of equipment / component design experience for level 11; relevant M.S. degree credited as two years of experience.
NewSenior Mechanical Engineer - Remote System OneSenior Mechanical Engineer - RemoteSeattle, WARemote$55–$75 / hourThis position will play a key role in managing multi-discipline engineering efforts, supporting EPCm-style projects, and ensuring successful project execution across safety, quality, cost, and schedule. This role is ideal for a hands-on engineering professional who is experienced across the full project lifecycle—from concept and pre-FEED through commissioning and startup.
Fuel Handling Design Engineer System OneFuel Handling Design EngineerBellevue, WA$52–$85 / hourInterface with cross-functional design disciplines (mechanical, instrumentation & controls, civil, nuclear) to develop plant design information and define system design/performance criteria. Physical requirements include sitting and/or standing for extended periods, bending/stooping, grasping/gripping, fine motor control, with minimal physical exertion, including the ability to safely lift up to 25 pounds.
NewSystem Design Engineer System OneSystem Design EngineerBellevue, WARemote$69–$115 / hourThis role will support the Sodium Processing Systems team, focusing on system design, vendor coordination, and integration of hardware into overall plant system architecture for a next-generation nuclear reactor program. Bachelor’s degree in Mechanical Engineering, Chemical Engineering, or related discipline from an accredited university.
NewSenior Component Design Engineer (RPA) – Contract System OneSenior Component Design Engineer (RPA) – ContractBellevue, WARemote$56–$95 / hourRequirements B.S. degree in Mechanical Engineering or equivalent (minimum of eight years of equipment/component design experience; relevant M.S. degree credited as two years of experience) . System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
NewJunior I & C Design Engineer System OneJunior I & C Design EngineerBellevue, WA$115–$190 / hourThis role will focus on the development of Instrumentation & Control systems for nuclear island systems, structures, and components (SSCs), working closely with multidisciplinary engineering teams to deliver safe, reliable, and innovative engineering solutions. Bachelor's degree or higher in Controls Engineering, Electrical Engineering, or a related engineering discipline from an accredited university.
RAC Component Design Engineer (Ventilation) System OneRAC Component Design Engineer (Ventilation)Bellevue, WARemote$50–$80 / hourProvide technical direction and interface to supplier projects, working with supply chain teams to ensure delivery of engineering designs and other deliverables, as well as coordination and performance of technical reviews of deliverables. Interface with and support licensing activities needed to obtain both the construction and operating licenses for the reactor systems including development of safety analysis reports, technical specifications, topical reports, and other licensing documents.
NewComponent Design Engineer (RPA) – Contract System OneComponent Design Engineer (RPA) – ContractBellevue, WARemote$52–$85 / hourSupport continuous learning and application of nuclear industry best practices to maintain the highest quality of engineering design and proactively identify process change/enhancement opportunities. The Component Design Engineer (RPA) will work as part of a high functioning team of engineers and scientists focused on developing the design of next generation advanced nuclear reactors.
NewApplications Engineer / BAS Programmer JobotApplications Engineer / BAS ProgrammerSeattle, WARemote$90,000–$120,000 / hourThe right candidate will work closely with engineering, project management, and field teams to turn mechanical and electrical system designs into fully operational BAS and controls platforms that optimize building performance, reliability, and efficiency. Information collected and processed as part of your Jobot candidate profile, and any job applications, resumes, or other information you choose to submit is subject to Jobot's Privacy Policy, as well as the Jobot California Worker Privacy Notice and Jobot Notice Regarding Automated Employment Decision Tools which are available at jobot.com/legal.
EWIS Engineer (w/Capital Harness Experience) 804 TechnologyEWIS Engineer (w/Capital Harness Experience)Seattle, WA$165,000–$184,000 / yearFull timeYou will play a key part in ensuring wiring harnesses and interconnection systems meet all functional, safety, and certification requirements while delivering high-quality engineering solutions to our customers. We are seeking a talented EWIS (Electrical Wiring Interconnection System) Engineers with 5+ years of drawing and design experience in Siemens Capital Harness (Capital).
Process Engineer V # 26-12762 US Tech SolutionsProcess Engineer V # 26-12762Redmond, WA$60–$120 / hourContractorFull timeThe successful candidate will possess experience with a wide variety of manufacturing processes, be comfortable driving a team of engineers to rapidly develop and scale Client manufacturing processes and have the ability to work with a team of researchers with tolerance for a high degree of ambiguity. Experience with mass production of systems requiring multiple manufacturing processes such as: miniature motorized mechanisms; soft goods cutting, laminating, and kitting; active optical alignment, casting, molding, machining, electronics packaging, coatings, additive manufacturing.
NewSenior Engineer System OneSenior EngineerBellevue, WARemote$56–$95 / hourThe successful candidate will be responsible for preparing, reviewing, and certifying Design Specifications (DS) and Design Reports (DR) in accordance with ASME Boiler & Pressure Vessel Code Section III, while supporting regulatory, compliance, and customer deliverables. System One is seeking an experienced Senior Mechanical Engineer to support the design and development of reactor structures and components for a next-generation Generation IV advanced nuclear reactor program.
Flight Test Engineer 804 TechnologyFlight Test EngineerSeattle, WA$85–$95 / hourFull timeDesired for Cross-Training Opportunities: Aerospace engineering experience in Flight Sciences, including experience in aerodynamic testing and/or design; flight testing of aircraft performance and handling characteristics, including experience with take-off; landing; climb and route performance; static-source error corrections and stall speed testing; longitudinal & lateral/directional stability and control; minimum control speeds; stall characteristics; high speed characteristics, crosswind takeoff/landing and flight into known icing. The primary role in this position is as a Flight Test Engineer who is responsible for coordinating test and certification requirements, authoring and executing flight and ground test plans for a wide variety of aircraft platforms including FAA Part 23, 25, 27 and 29 as well as new and novel technology demonstrator programs such as electric and hydrogen propulsion.
Electrical Engineer Davis Wire CorporationElectrical EngineerKent, WAHistorically talented at restoring distressed companies, Heico strategically targets acquisitions that will complement its ever-growing portfolio of companies in manufacturing, construction, and industrial services. The employee is occasionally required to use hands to finger, handle or feel and reach with hands and arms, lift and/or carry up to 50 pounds, balance, bend, stoop or kneel, climb, push/pull and squat, or crouch.
Commercial 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 .
Component Engineer, Nuclear System OneComponent Engineer, NuclearBellevue, WARemote$52–$85 / hourSystem One, and its subsidiaries including Joulé, ALTA IT Services, 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.
NewEnvironmental Engineer Aminov Search PartnersEnvironmental EngineerSeattle, WA$150,000–$150,000 / yearp>Qualifications include a Bachelor's Degree in Civil or Environmental Engineering, a Professional Engineer (PE) license, and substantial experience in collaborating with stakeholders, navigating regulatory landscapes, and engineering water infrastructure solutions. The ideal candidate will apply their comprehensive knowledge in civil and environmental engineering to innovate and lead projects, while ensuring compliance with pertinent regulations.
NewWeld Engineer System OneWeld EngineerBellevue, WA$63–$80 / hourThis is a hands-on, high-impact role where your weld engineering and metallurgy expertise will influence how advanced components are designed, tested, qualified, and transitioned into supplier-ready manufacturing processes. System One is seeking a highly motivated Weld Engineer to support a Materials Development & Qualification team advancing next-generation materials and components for sodium-cooled fast reactors.
NewSystem Transients Analysis Engineer System OneSystem Transients Analysis EngineerBellevue, WARemote$67–$110 / hourThis role will focus on thermal hydraulic and transient analysis activities supporting advanced reactor system design, plant operations analysis, and control system integration. System One is seeking a highly capable and motivated System Transients Analysis Engineer to support an advanced sodium-cooled reactor program.
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.
NewEngineer - Test II System OneEngineer - Test IIKent, WA$74–$74 / hourCollaborate with design engineers to identify test requirements and work with operations engineers to incorporate tests into test stands. Contribute to manufacturing, testing, and delivery of hardware for the New Glenn Launch Vehicle, impacting safe human spaceflight initiatives.
NewPlant Integrated Analysis Engineer System OnePlant Integrated Analysis EngineerBellevue, WARemote$37–$74 / hourWorking as part of a multidisciplinary engineering team, you'll collaborate with safety, instrumentation & controls (I&C), and system design engineers to model, analyze, and validate complex plant systems. This role will focus on plant-level thermal-hydraulic analysis, transient modeling, and control system performance to support reactor design, safety, and operational excellence.
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 .
RAC System Engineer (Process & I&C) System OneRAC System Engineer (Process & I&C)Bellevue, WARemote$54–$90 / hourDevelop engineering designs supporting lifecycle factors including operability, maintainability, and reliability. Previous experience with commercial nuclear reactors and systems, high temperature pressure vessels, or similar systems (highly desired).
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.
Plant Radiological Integration Engineer System OnePlant Radiological Integration EngineerBellevue, WARemote$69–$115 / hourJob Title: Plant Radiological Integration Engineer Location: Bellevue, WA 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. ResponsibilitiesCoordinate between design teams working on plant source term and radiological release analysis, risk analysis, plant operations and SSC radiological shielding design teams.
Probabilistic Risk Assessment (PRA) Engineer (Entry Level) System OneProbabilistic Risk Assessment (PRA) Engineer (Entry Level)Bellevue, WARemote$37–$74 / hourThe selected candidate will contribute to the development and maintenance of PRA models, perform risk analyses, support hazard evaluations, and collaborate with engineering teams to ensure safe, reliable, and innovative reactor designs. This role offers an excellent opportunity to work with a multidisciplinary engineering team performing probabilistic risk assessments, severe accident analysis, and safety evaluations that support reactor design, licensing, and regulatory compliance.
Test Engineer III (Metrology) BC ForwardTest Engineer III (Metrology)Redmond, WA$53–$55 / hourFull timeMaster's degree or equivalent experience in Optics, Optical Sciences, Optical Engineering, Physics, Mechanical Engineering, Electrical Engineering, Computer Sciences, or a similar field. The ideal candidate will have strong experience in optical testing, calibration, data analysis, and test automation and a proven ability to develop and execute test procedures, analyze results, and drive hardware quality.
NewProduct Engineer LeidosProduct EngineerLynnwood, WA$131,300–$237,350If 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. Leidos’ Undersea Systems Division is a recognized leader in C4ISR technologies, delivering innovative, mission-critical solutions across sensor networks, unmanned systems, and tactical platforms.
NewSenior Test and Integration Engineer LeidosSenior Test and Integration EngineerLynnwood, 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.
NewProgram Chief Engineer LeidosProgram Chief EngineerLake Stevens, WA$131,300–$237,350If 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. Leidos’ Undersea Systems Division is a recognized leader in C4ISR technologies, delivering innovative, mission-critical solutions across sensor networks, unmanned systems, and tactical platforms.
NewPrincipal Engineer LeidosPrincipal EngineerLynnwood, WA$131,300–$237,350If 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. Leidos’ Undersea Systems Division is a recognized leader in C4ISR technologies, delivering innovative, mission-critical solutions across sensor networks, unmanned systems, and tactical platforms.
NewLead Engineer LeidosLead EngineerLynnwood, WA$131,300–$237,350If 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. Leidos’ Undersea Systems Division is a recognized leader in C4ISR technologies, delivering innovative, mission-critical solutions across sensor networks, unmanned systems, and tactical platforms.
NewTransmission System Manager, AWS Energy Team Amazon Data Services, Inc.Transmission System Manager, AWS Energy TeamSeattle, WAThe successful candidate will possess strong project management and communication skills and an ability to collaborate with cross-functional teams (Energy, Legal, Finance, Supply Strategy, Real Estate and Capacity Planning) on reporting status, issues, opportunities and key risks across a portfolio of power projects. We pioneered cloud computing and never stopped innovating — that’s why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.
NewManufacturing Technician B - 2nd Shift L3Harris TechnologiesManufacturing Technician B - 2nd ShiftRedmond, WA$22.83–$42.54 / hourBy submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
Process Engineer V (Manufacturing) BC ForwardProcess Engineer V (Manufacturing)Redmond, WAFull timeBackground in mass production across multiple processes such as miniature motorized mechanisms, soft goods cutting/laminating/kitting, active optical alignment, casting, molding, machining, electronics packaging, coatings, and additive manufacturing. The ideal candidate will have strong experience in scaling novel manufacturing processes from concept to pilot-production, system integration, and DFx and a proven ability to deliver reliable, high-performance hardware prototypes for emerging VR/AR systems.
NewManufacturing Technician B - 1st Shift L3Harris TechnologiesManufacturing Technician B - 1st ShiftRedmond, WA$22.83–$42.54 / hourBy submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
NewManufacturing Technician C - 1st Shift L3Harris TechnologiesManufacturing Technician C - 1st ShiftRedmond, WA$27.40–$49.04 / hourBy submitting your resume for this position, you understand and agree that L3Harris Technologies may share your resume, as well as any other related personal information or documentation you provide, with its subsidiaries and affiliated companies for the purpose of considering you for other available positions. With customers’ mission-critical needs always in mind, our employees deliver end-to-end technology solutions connecting the space, air, land, sea and cyber domains in the interest of national security.
Mechanical Design Engineer (Contract) Zeno PowerMechanical Design Engineer (Contract)Seattle, WA$65–$80 / hourFull timePerson" means (i) a U.S citizen or U.S. national; or (ii) any natural person who is a U.S. Lawful Permanent Resident (i.e., holds a Green Card), as defined by 8 U.S.C. 1101(a)(20) or as a "protected individual" defined by 8 U.S.C. 1324b(a)(3) (i.e., admitted as a refugee or is granted asylum). Zeno is seeking a highly motivated Mechanical Design Engineer to support the mission-oriented efforts of developing and bringing to market Radioisotope Power Systems (RPS) technologies.
Mechanical Design Engineer Remote (Contractor) Zeno PowerMechanical Design Engineer Remote (Contractor)Seattle, WARemoteFull timePerson" means (i) a U.S citizen or U.S. national; or (ii) any natural person who is a U.S. Lawful Permanent Resident (i.e., holds a Green Card), as defined by 8 U.S.C. 1101(a)(20) or as a "protected individual" defined by 8 U.S.C. 1324b(a)(3) (i.e., admitted as a refugee or is granted asylum). Zeno is seeking a highly motivated Mechanical Design Engineer to support the mission-oriented efforts of developing and bringing to market Radioisotope Power Systems (RPS) technologies.
Mechanical Design Engineer III - Blue Ring Mechanisms Blue Origin LLCMechanical Design Engineer III - Blue Ring MechanismsSeattle, WAFull timeand/or transports placardable amounts of hazardous materials by ground in any vehicle on a public road while in commerce, may be subject to additional Federal Motor Carrier Safety Regulations including: Driver Qualification Files, Medical Certification (obtained before onboarding), Road Test, Hours of Service, Drug and Alcohol Testing (CDL drivers only), vehicle inspection requirements, CDL requirements (if applicable) and hazardous materials transportation/shipping training. ITAR RequirementsTo conform to U.S. Government commercial space technology export regulations, including the International Traffic in Arms Regulations (ITAR), 8 U.S.C. § 1324b(a)(3), applicants for employment at Blue Origin must be a U.S. citizen or national, lawfully admitted for permanent residence into the U.S. (i.e. current green card holder), or lawfully admitted as a refugee or granted asylum under 8 U.S.C. § 1157-1158.
Mechanical Design Engineer Zeno PowerMechanical Design EngineerSeattle, WA$105,000–$125,000 / yearFull timeZeno is seeking a highly motivated Mechanical Design Engineer to support the engineering efforts of developing Radioisotope Power Systems (RPSs) for applications from the seabed to the surface of the moon. Person" means (i) a U.S citizen or U.S. national; or (ii) any natural person who is a U.S. Lawful Permanent Resident (i.e., holds a Green Card), as defined by 8 U.S.C. 1101(a)(20) or as a "protected individual" defined by 8 U.S.C. 1324b(a)(3) (i.e., admitted as a refugee or is granted asylum).
Senior Mechanical Engineer P2S, Inc.Senior Mechanical EngineerSeattle, WA$148,000–$180,000 / yearFull timeThird-Party Recruiting DisclaimerLegence and its affiliates do not accept unsolicited resumes from agencies; any such submissions without a prior signed agreement authorized by Legence Holdings LLC's CHRO or Director of Talent Acquisition will not incur fees and are considered property of Legence. The company specializes in designing, fabricating, and installing complex HVAC, process piping, and other mechanical, electrical, and plumbing (MEP) systems-enhancing energy efficiency, reliability, and sustainability in new and existing facilities.
Senior Mechanical Engineer - Buildings Colliers Engineering & DesignSenior Mechanical Engineer - BuildingsSeattle, WA$106,600–$140,000 / yearFull timeWe have also created an internal culture that provides the resources and technology needed to encourage personal and professional growth opportunities through reimbursement for education; a free in-house resource for hundreds of educational and self-enrichment courses; mentorship program; wellness program; Women's Organization and ongoing philanthropic opportunities. We provide a full range of mechanical engineering services to municipal, commercial, higher education and public works agencies, partnering with clients to design buildings from the ground-up or to renovate existing buildings to optimize their use.