Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Mechanical Design Engineer

$52 - $85 per hour
Temporary

System One

Senior Mechanical Design Engineer (Core Components)

Location: Bellevue, WA
Job Type: Contract - Remote
Schedule: 40 hours/week

System One is seeking a highly motivated Senior Mechanical Design Engineer (Core Components) to support the design and development of advanced nuclear reactor technologies. 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.

The 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.

Responsibilities

  • Develop mechanical design solutions for reactor core components, reactor structures, and Nuclear Island equipment.
  • Coordinate engineering requirements and inputs from cross-functional project teams to produce detailed designs, models, drawings, and engineering specifications.
  • Plan and execute design activities while maintaining project schedules and technical objectives.
  • Develop and support testing strategies to validate functional and performance requirements.
  • Perform design trade studies, feasibility evaluations, and scoping analyses.
  • Collaborate with structural, thermal, nuclear, manufacturing, and systems engineering teams throughout the design process.
  • Perform engineering reviews of drawings, calculations, analyses, and technical documentation.
  • Provide technical guidance and mentorship to engineers, designers, suppliers, and subcontractors.
  • Support continuous improvement initiatives and implement engineering best practices throughout the design lifecycle.
  • Participate in design reviews and resolve technical issues during development and manufacturing.

Required Qualifications

  • Bachelor's degree in Mechanical Engineering or a related engineering discipline.
  • Minimum 5 years of mechanical equipment or component design experience. Advanced degrees may be considered toward years of experience.
  • Experience developing mechanical designs using 3D CAD , preferably SolidWorks .
  • Experience designing and executing engineering test programs with an emphasis on product validation.
  • Strong background in finite element stress analysis, mechanical analysis methods, and first-principles engineering calculations.
  • Knowledge of Design for Manufacturability (DFM) and Design for Assembly (DFA) principles.
  • Strong analytical, problem-solving, and technical communication skills.
  • Ability to manage multiple engineering tasks and priorities simultaneously.
  • Excellent attention to detail and ability to work independently with minimal supervision.

Preferred Qualifications

  • Experience or familiarity with ASME Boiler & Pressure Vessel Code Section III, Division 5 .
  • Mechanical design experience supporting commercial nuclear , advanced reactor , or other highly regulated industries.
  • Experience designing reactor core assemblies or other nuclear reactor components.
  • Knowledge of DOE and NRC regulations.
  • Working knowledge of neutronics , thermal-hydraulics , and structural analysis .
  • Experience leading multidisciplinary engineering design efforts.
  • Experience performing finite element analysis using ANSYS .
  • Experience developing nuclear equipment test plans, test requirements documents, and qualification programs.
  • Experience supporting manufacturing processes, first article production, and design for production.
  • Experience evaluating suppliers, reviewing technical deliverables, and resolving vendor nonconformances.

Additional Information

  • Travel: Up to 5%
  • Work Environment: Standard office environment.
  • Physical Requirements: Ability to sit or stand for extended periods, perform computer-based work, and lift up to 25 pounds as needed.

Ref: #161-Managed Staffing Charlotte


System One, and its subsidiaries including Joulé, ALTA IT Services, TeamPeople, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

Vacancy posted 9 days ago
Similar jobs that could be interesting for youBased on the Senior Mechanical Design Engineer in Bellevue, WA vacancy
  • $86.9k - $136.3k

     ...global technology leader in the design, manufacture and customer...  ...manufactures advanced diesel engines and also provides customized...  ...will be focused on developing mechanical systems in support of new product...  ...are provided with additional seniority/years of service), 12 paid... 
    Senior
    Temporary work
    Flexible hours

    Paccar

    Kirkland, WA
    3 days ago
  • $90.4k - $141.8k

     ...new product interior vehicle design? Do you want to work on industry...  ...interiors. Kenworth design engineers focus on product development...  ...Department is seeking multiple Mechanical Design Engineers. Please note...  ...are provided with additional seniority/years of service), 12 paid... 
    Senior
    Temporary work
    Internship
    Flexible hours

    Paccar

    Kirkland, WA
    4 days ago
  •  ...things possible not only in your community, but around the world.In the role of Senior Mechanical Engineer (Pipe Stress), we'll count on you to:Perform pipe stress analysis and piping design for projects and prepare reports on the findings.Coordinate the work of... 
    Senior
    Contract work
    Work at office

    HDR

    Bellevue, WA
    2 days ago
  • $124.73k - $187.05k

     ...applications. Our high-performance radars work in all weather and are designed for autonomous vehicles, uncrewed aircraft & drones, and...  ...Urban Air Mobility (UTM).Echodyne is seeking a Sr. Mechanical Engineer to join our fast-growing team. REQUIRED SKILLS / EXPERIENCESenior... 
    Senior
    Full time
    Temporary work
    Local area

    Echodyne

    Kirkland, WA
    7 hours ago
  • $118.3k - $175k

     ...structures, we’re helping our clients innovate and grow by designing, engineering, and executing the construction of state-of-the-art facilities...  ...HVAC and plant utility systems philosophies. Developing mechanical / utility equipment and construction specifications. Performing... 
    Senior
    Civilian Contractor
    Full time
    Remote work

    Jacobs

    Bellevue, WA
    4 days ago
  • $90.4k - $141.8k

     ...global technology leader in the design, manufacture and customer...  ...manufactures advanced diesel engines and also provides customized...  ...requiredWork under the guidance of senior engineers to develop...  ...enthusiasm for learning new mechanical design systems and solving complex... 
    Senior
    Temporary work
    Flexible hours

    Paccar

    Kirkland, WA
    3 days ago
  • $86.9k - $136.3k

    Kenworth Division of PACCAR is hiring a Senior Mechanical Engineer - Aftersales Engineering to join our engineering team in Kirkland, Washington....  ...and DAF trucks. PACCAR is a global technology leader in the design, manufacture and customer support of high-quality light-,... 
    Senior
    Temporary work
    Flexible hours

    Paccar

    Kirkland, WA
    2 days ago
  • $125.5k - $169.8k

     ...orders. If the notion of leading engineering projects amongst the world’s...  ...leader that wants to design the next generation of world-...  ...external equipment quality control mechanisms. We are looking for a hands-...  ...able to influence and work with senior leaders across multiple... 
    Senior
    Work experience placement
    Immediate start
    Worldwide
    Flexible hours

    Amazon

    Bellevue, WA
    1 day ago
  •  ...the world.We believe building engineering is more than systems and...  ...Services Group, you’ll help design the critical infrastructure that...  ...experience. We bring together mechanical, electrical, structural, and...  ...of excellence.In the role of Senior Building Mechanical Engineer,... 
    Senior
    For contractors
    Work at office

    HDR

    Bellevue, WA
    4 days ago
  •  ...Senior Mechanical Design Engineer (Core Components) Location: Bellevue, WA Job Type: Contract - Remote Schedule: 40 hours/week System One is seeking a highly motivated Senior Mechanical Design Engineer (Core Components) to support the design and... 
    Senior
    Contract work
    For subcontractor
    Work at office
    Remote work

    System One

    Bellevue, WA
    9 days ago
  •  ...Job Title: Senior Mechanical Engineer Location: Bellevue, WA Type: Contract Contractor Work Model: Remote – offsite Hours: 40.0 Responsibilities Design reactor structures and components from concept through final design. Develop equipment and component... 
    Senior
    Contract work
    For contractors
    Work experience placement
    For subcontractor
    Local area
    Remote work

    System One

    Bellevue, WA
    9 days ago
  • $60 - $75 per hour

     ...Job Description Job Description Overview Seeking a Senior Mechanical Design Engineer to support the design and development of custom manufacturing equipment, tooling, fixtures, and automated systems used in complex production environments. This role is involved throughout... 
    Senior
    Contract work
    Temporary work

    Actalent

    Kirkland, WA
    1 day ago
  • $140k - $205k

    The Opportunity:  Tetra Tech is adding a Senior Mechanical Engineering Program Manager to our Infrastructure Design Team. For this role, we are open to hybrid work schedules in our Bellevue or Seattle, WA offices. Why Tetra Tech:  At Tetra Tech, we are Leading with Science... 
    Senior
    Full time
    For contractors
    Worldwide
    Monday to Friday
    Night shift

    Tetra Tech

    Bellevue, WA
    4 days ago
  • $109k - $150k

    Summary Creates complex designs for aircraft modifications and installations related to mechanical systems—including air conditioning, ventilation, smoke detection, equipment...  ...and knowledge and works with Manufacturing Engineers to optimize designs for reduced parts counts,... 
    Senior
    Permanent employment
    Full time
    Shift work

    Greenpoint Technologies

    Bothell, WA
    2 days ago
  • $120k - $140k

     ...food and beverage. Today, our colorful and thoughtfully designed products including the popular Quencher™ series go beyond...  .... Learn more at Position Overview: We are seeking a Senior Packaging Structural Engineer to join our Packaging Engineering team. In this role,... 
    Senior
    Full time
    Work at office

    Stanley 1913

    Seattle, WA
    2 days ago
  • $100k - $140k

    DLR Group is an integrated design firm with a promise to elevate the human experience through design. This fuels the work we...  ..., you’re in the right place.DLR Group has an opening for a Senior Mechanical Engineer.Locations: Seattle, WA Position SummaryAs a Senior Mechanical... 
    Senior
    Work at office

    DLR Group

    Seattle, WA
    2 days ago
  • $119.8k - $234.7k

     ...Profession: Hardware EngineeringDiscipline: Mechanical EngineeringCompany: MicrosoftOverviewAre...  ...Surface needs you!We are looking for a Senior Mechanical Engineer with experience leading teams through system architecture and design in a fast-paced, product development... 
    Senior
    Ongoing contract
    Local area
    Overseas

    Microsoft

    Redmond, WA
    2 days ago
  • $137.3k - $185.7k

     ...sophisticated control systems, and advanced electromechanical design to create adaptable automation solutions capable of working...  .... We are seeking a talented and motivated Electro-Mechanical Engineer to design, integrate and launch robotic End Effectors. The ideal... 
    Senior
    Flexible hours

    Amazon

    Seattle, WA
    3 days ago
  • $137.3k - $185.7k

     ...and dynamic individual with the ability and drive to design and develop spacecraft mechanisms. In this role, you’ll identify the requirements through...  ...functional test procedures- Bachelors degree in mechanical engineering, aerospace engineering, or equivalent.- 5+ years... 
    Senior
    Permanent employment
    Flexible hours

    Amazon

    Redmond, WA
    3 days ago
  • $129.1k - $146.7k

     ...and to the clients and communities we serve. Our West Coast mechanical team is looking for a Senior Mechanical Engineer to join our multi-disciplinary team anchored in San Francisco. Arup is known for designing innovative and sustainable solutions for our clients... 
    Senior
    Local area
    Remote work
    Flexible hours

    Arup

    Seattle, WA
    3 days ago
  • $130k - $180k

     ...is actively developing the technologies to make this possible, with the ultimate goal of enabling human life on Mars.SR. MECHANICAL DESIGN ENGINEER, SATELLITES (STARLINK)As a member of the Starlink Production Design team you will design the factory of the future, enabling... 
    Senior
    Permanent employment
    Temporary work
    Work experience placement
    Work at office
    Monday to Friday
    Weekend work

    SpaceX

    Redmond, WA
    4 days ago
  • $137.3k - $185.7k

     ...to customers and communities around the world, and we’ve designed the system with the capacity, flexibility, and performance...  ...operating in locations without reliable connectivity.The Sr. Mechanical Design Engineer will be a member of the Amazon Leo Inter-Satellite Link... 
    Senior
    Permanent employment
    Flexible hours

    Amazon

    Redmond, WA
    3 days ago
  • $152k - $241.5k

     ...technologies to accelerate AI workloads, and we are looking for an engineer focused on performance validation, analysis, and tracking. In...  ...-world impact, we want to hear from you.What You’ll Be Doing:Design and develop performance testing frameworks for deep learning compilers... 
    Senior
    Full time
    Remote work

    Nvidia

    Redmond, WA
    3 days ago
  •  ...is poised for monumental growth. We are seeking a qualified Senior Mechanical Engineer to help our clients develop, contract, and implement...  ...and providing mechanical engineering support for detailed design and owner’s engineer projects on both a technical and contractual... 
    Senior
    Contract work
    Work at office

    HDR

    Seattle, WA
    4 days ago
  • $108k - $145k

     ...Senior Mechanical Estimator As a Senior Mechanical Estimator at Linesight, you will work with highly experienced, culturally diverse, and passionate teams nurturing a strong social dynamic and a shared sense of achievement. You will gain vast industry experience that... 
    Senior
    Local area

    LineSight Inc

    Bellevue, WA
    4 days ago
  • $137.3k - $185.7k

    Amazon Fulfillment Technologies (AFT) is seeking a mechanical design engineer to conceive, develop, prototype and deploy modular data-collection systems at scale. These systems will be installed in a large variety of environments across the Amazon network, but need to... 
    Full time
    Temporary work
    Seasonal work
    Worldwide
    Flexible hours

    Amazon

    Bellevue, WA
    1 day ago
  • Mechanical Design EngineerLocation: Omaha, NE - onsite Position OverviewWe are seeking a skilled Mechanical Design Engineer to join our team. The ideal candidate will be responsible for designing, developing, and optimizing mechanical systems and components for our food... 

    CyberCoders

    Bellevue, WA
    3 days ago
  • $80.8k - $120.8k

     ...for a collaborative and driven engineer with a focus on research and...  ...projects related to truck design and development. In this role...  ...Qualifications / SkillsB.S. in Mechanical Engineering or related field...  ...are provided with additional seniority/years of service), 12 paid holidays... 
    Temporary work
    Flexible hours

    Paccar

    Kirkland, WA
    3 days ago
  • $80.8k - $120.8k

     ...global technology leader in the design, manufacture and customer...  ...manufactures advanced diesel engines, provides financial services...  ...are provided with additional seniority/years of service), 12 paid holidays...  .... The salary range for Mechanical Design Engineer - Outerbody is... 
    Temporary work
    Flexible hours

    Paccar

    Kirkland, WA
    7 hours ago
  • $103.2k - $159.6k

    Senior Marine Structural Engineer Seattle, PortlandRegular, Full TimeHybridAre you interested in joining a prestigious engineering consulting firm that...  ...consulting to comprehensive planning, engineering design, and construction oversight.Your key responsibilities will... 
    Senior
    Full time
    Local area
    Work from home
    Worldwide
    Flexible hours

    COWI

    Seattle, WA
    4 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Mechanical Design Engineer. Be the first to apply!