Mechanical Engineer HARDESTY & HANOVERMechanical EngineerLacey, WAThe successful candidate will contribute to a variety of infrastructure projects involving mechanical systems, structural machinery, and bridge operations while working closely with multidisciplinary engineering teams. With more than 139 years of experience and over 600 professionals across 32 offices nationwide, we combine deep technical expertise with the agility of a privately owned firm.
Senior 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.
Senior 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.
Senior Mechanical Engineer - Remote System OneSenior Mechanical Engineer - RemoteRichland, 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.
Senior 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.
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.
Mechanical 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.
NewApplications Engineer - Metallurgical / Mechanical Wagstaff IncApplications Engineer - Metallurgical / MechanicalSpokane Valley, WA$81,000–$130,000 / yearPrimary duties consist of the application of electrical and/or mechanical engineering knowledge to the unique set of circumstances at each customer location, including but not limited to reviewing technical proposal content, creating proposal drawings, and developing project specifications for optimal utilization of Wagstaff supplied equipment. Because of this environment and associated risks, coordination with customer managers/employees may be necessary before entering the customer site, and use of job appropriate personal protective equipment and clothing is required at customer sites.
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.
Senior Hardware Engineer, Automation Amazon.com Services LLCSenior Hardware Engineer, AutomationSeattle, WAThis role requires deep experience with automated assembly systems, robotic platforms, material handling, and safety systems, along with the ability to think holistically—connecting vendor evaluation, mechanical design, and system-level performance. - Independently design, develop, and validate mechanical hardware for automated systems including workstations, robotic arms, safety systems, material handling, and part load/unload mechanisms.
Mechanical Designer System OneMechanical DesignerBellevue, WA$37–$74 / hourDesign mechanical and structural components, test fixtures, flow loops, rigs, and sub-scale test articles. Experience creating fabrication drawings and applying Design for Manufacturability (DFM) and Design for Assembly (DFA) principles.
Mechanical Technician - General DCS CorporationMechanical Technician - GeneralJoint Base Lewis-McChord, WAp>Plan and perform installation and test of mechanical modifications to, and preventive maintenance, troubleshooting, and repair of mechanical and structural components for, complex systems and subsystems. We’re seeking individuals who are excited to take on meaningful challenges, contribute to innovative solutions, and help shape the future of a fast‑evolving mission space.
Mechanical Designer II - remote American Equipment HR LLCMechanical Designer II - remotePacific, WARemote$40–$45 / hourThe ideal candidate will have a minimum of 5 years of experience in mechanical design, hold a SolidWorks Professional Certification (CSWP), and preferably possess the Certified SolidWorks Expert (CSWE) credential. American Equipment Holdings is one the largest and fastest growing companies in our space with more than 800 dedicated team members that serve thousands of customers throughout the United States.
Mechanical Technician Build DCS CorporationMechanical Technician BuildJoint Base Lewis-McChord, WAp>AA/AS from an accredited college, or 2-year technical school and certification in area of expertise with 5 years of experience in assembling or constructing prototype systems and subsystems. We’re seeking individuals who are excited to take on meaningful challenges, contribute to innovative solutions, and help shape the future of a fast‑evolving mission space.
Senior Mechanical Designer System OneSenior Mechanical DesignerBellevue, WA$69–$115 / hourThis role is responsible for creating structural and mechanical design solutions, developing 3D CAD models, and producing detailed engineering drawings to support conceptual and preliminary design efforts. System One is seeking a highly motivated Senior Mechanical Designer to support the design and development of advanced Generation IV nuclear reactor systems.
Nuclear Engineering Program Developer System OneNuclear Engineering Program DeveloperBellevue, WARemote$56–$95 / hourThe successful candidate will coordinate with engineers working on systems, components, or engineering analysis areas such as safety analysis, thermal analysis, stress analysis, and/or process/control analysis. Provide inputs on plant level and system level requirements, specifications, and strategy documents related to plant operations and maintenance activities over the lifecycle of a nuclear facility.
NewEngineering Technician II and IV (TISS, WA) Strategic Technology Institute Inc,Engineering Technician II and IV (TISS, WA)Keyport, WAThis posting covers two levels: Engineering Technician II (entry-level with 1+ year of experience) and Engineering Technician IV (senior-level with 5+ years of experience). Support undersea tracking range operations by operating and maintaining range support systems (electronic, acoustic, video, mechanical, electro-hydraulic).
Applications 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.
Embedded Solutions Engineer – Space Systems JobotEmbedded Solutions Engineer – Space SystemsSeattle, WA$126,000–$250,000 / yearFPGA Integration (Optional): Experience interfacing with or developing alongside FPGAs, including familiarity with common communication interfaces (AXI, PCIe, custom parallel buses),register-mapped peripheral access from embedded Linux or bare-metal environments, and collaborative bring-up with digital design engineers. Excellent Communication Skills: Effectively convey ideas and communicate technical topics with engineering, build staff, and operations; run self-directed design reviews and participate in reviews of parallel systems.
NewProject Team Leader Mechanical Johnson ControlsProject Team Leader MechanicalBothell, WA$102,800–$154,000 / yearSix or more years of comprehensive, technical and operational knowledge of the service business, particularly related to smaller fast track retrofit, remodel and tenant improvement types of projects. HIRING SALARY RANGE: $102,800-154,000 (Salary to be determined by the education, experience, knowledge, skills, and abilities of the applicant, internal equity, and alignment with market data.)
Construction Sr. Project Manager (Heavy Civil) JobotConstruction Sr. Project Manager (Heavy Civil)Vancouver, WA$155,000–$170,000 / hourInformation 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. We're recognized as one of the highest value industrial and mechanical construction contractors in the marketplace, handling complex infrastructure and critical plant processes.
Senior 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.
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).
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.
NewCFD & CAD Expert — AI Evaluation & Quality Review BraintrustCFD & CAD Expert — AI Evaluation & Quality ReviewSeattle, WAIn this project-based role, you will review, annotate, and evaluate highly technical engineering content, applying your domain expertise to ensure the accuracy and quality of datasets used for AI training. We are seeking a Mechanical Engineering expert with advanced CAD and Computational Fluid Dynamics (CFD) experience to support a leading AI lab developing next-generation engineering AI models.
System 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.
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.
Hardware Systems Engineer MicrosoftHardware Systems EngineerRedmond, WA$100,600–$199,000 / yearResponsibilities will include architecting and developing efficient test and debug frameworks for cutting edge technologies, building test and debug automation, partnering with leading technology providers to define test and debug strategies, driving unified and efficient test, validation and debug methodologies across product segments. Masters Degree in Electrical Engineering, Computer Engineering, Mechanical Engineering, or related field OR Bachelors Degree in Electrical Engineering, Computer Engineering, Mechanical Engineering, or related field AND 2+ years technical engineering experience OR equivalent experience.
Weld 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 .
Plant 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.
System 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.
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.
NewPlant Integration Engineer – Steam & Power Systems System OnePlant Integration Engineer – Steam & Power SystemsBellevue, WA$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.
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.
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.
Thermal 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.
Senior 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 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.
Test Engineer System OneTest EngineerBellevue, WA$37–$74 / hourThe selected candidate will work closely with multidisciplinary engineering teams, designers, technicians, and project stakeholders to develop innovative test solutions, execute test campaigns, analyze results, and deliver high-quality technical documentation. This role is ideal for an engineer with experience in research and development (R&D), mechanical testing, and experimental validation who enjoys solving complex engineering challenges in a collaborative environment.
Senior Electrical Engineer - Planning & Coordination MicrosoftSenior Electrical Engineer - Planning & CoordinationRedmond, WA$119,800–$234,700 / yearPartner across qubit design, electrical engineering, mechanical engineering, systems engineering, reliability, sourcing, supply chain, fabrication partners, contract manufacturers, system integrators, and leadership teams to align deliverables, resolve blockers, and support high-quality execution. We are seeking a Senior Electrical Engineering - Engineering Planning Coordinator with an electrical engineering background to lead complex printed circuit board (PCB) supplier engagements, drive process development, coordinate multidisciplinary hardware teams, and oversee program schedules, budgets, and resource planning.
Senior Maintenance Engineer AmrizeSenior Maintenance EngineerMedina, 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.
Component 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.
Mechanical Engineering Manager Enercon services IncMechanical Engineering ManagerKennewick, WA$120,000–$185,000 / yearFull timeAs the Mechanical Engineering Manager, you will serve as the mechanical discipline authority, owning final approval of all ME deliverables for the North Division, and lead the people side of the organization through strategic staffing, performance management, mentorship, and the development of a strong, futureready engineering workforce. ENERCON's Federal Services (EFS) North Divisionis seeking a Mechanical Engineering Managerto lead a highperforming, multidisciplinary mechanical engineering team supporting federal, nuclear, and industrial clients.
Intern - Mechanical Engineering (Aerospace) Parker Hannifin CorporationIntern - Mechanical Engineering (Aerospace)Woodmont Beach, WA$18.42–$30.70 / hourInternFull timeOur passionate people with deep engineering expertise, together with our breadth of differentiated technologies, ensure that we make the extraordinary happen and continue to shape the future of aviation in partnership with our customers. That is why we are so proud of everyone in our Exotic family who strives to be the best at what they do every day, working as a collaborative team in a culture of continuous improvement to stretch the bounds of creative thinking and provide quality products to our customers around the globe.
R&D Lab Technician - Mechanical Engineering Yoh Services LLCR&D Lab Technician - Mechanical EngineeringRedmond, WAFull timePhysical Requirements:* Ability to lift and move materials up to 50 lbs.* Ability to stand for extended periods and perform hands-on assemblyEstimated Min Rate: $35.00Estimated Max Rate: $40.00/hr+ Depends on work experience. R&D Lab Technician - Mechanical EngineeringWe are seeking a hands-on R&D Lab Technician to support our Mechanical Engineering team in prototyping, assembly, testing, and lab operations.
Mechanical Engineer Gannett Fleming, Inc.Mechanical EngineerTacoma, WAFull timeThis is an excellent opportunity to independently perform mechanical engineering (HVAC and/ or plumbing) design calculations, technical studies and prepares plans and specifications for a wide variety of project types which may include commercial, transportation, education, municipal, aviation, and federal clients. Understands client requirements as they relate to the mechanical scope of work; aligns and develops detailed design documents including drawings, specifications, cost estimates, reports, and calculations.
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.
Mechanical Engineer (4-9 years) Coffman EngineersMechanical Engineer (4-9 years)Spokane, WAFull timeOur broad range of markets, clients, and services, coupled with industry-leading talent, provides unique and exciting opportunities to grow as professionals, serve clients, and make a difference in our communities. Coffman Engineers is seeking a Mechanical Engineer (4-9 years)who wishes to gain alternative energy experience for a variety of projects, learn how to develop new business relationships, and work in a professional fast-paced environment.
Mechanical Engineer - Mid, Senior & Principal Levels Enercon services IncMechanical Engineer - Mid, Senior & Principal LevelsKennewick, WA$90,000–$175,000 / yearFull timeA typical day may include being part of a multi-discipline engineering team for major projects such as cooling water systems (pumps, motors, control systems, piping, heat exchangers) for existing or new power plants. Experience in one of the following industries highly preferred: engineering/design services, power generation, nuclear power, heavy industrial including chemical or pulp & paper, and government (DOE) projects.