TerraPower · 2 hours ago
Senior Mechanical Designer
Everett, Washington, United States
Full-time
Onsite
Senior Level
$139K/yr - $208K/yr
6+ years expTerraPower is a company focused on advancing nuclear science for significant human health benefits, particularly in medical isotopes development. They are seeking a Senior Mechanical Designer to play a key role in the design and implementation of mechanical systems and tooling for actinium-225 production, ensuring safety and reliability in radiological environments.
Clean EnergyCleanTechEnergyNuclear
Responsibilities
Create detailed CAD models of mechanical components and systems applying mechanical engineering principles
Prepare detailed technical drawings, specifications, Bill of Materials (BOMs), and Geometric Dimensioning and Tolerancing (GD&T), applying ASME Y14.1 and Y15.1 standards
Develop and test prototypes, analyze results, and iterate designs to meet performance, safety, and reliability standards
Investigate equipment failures, research new materials, and stay updated on technological advancements
Communicate effectively across the TPI team, and with key stakeholders to support review of engineering designs and gather necessary design input information
Lead reviews during product design and implementation phases to ensure mechanical system, interface and customer concerns are met
Assist in developing procurement packages, communicating with procurement contract administrators, and overseeing fabrication and delivery of custom mechanical equipment
Communicate effectively with external and internal vendors to review designs, maintain design documentation, manage timelines, ensure accuracy and efficiency of fabrication work, and integrate into Enterprise Resource Planning (ERP) systems
Provide technical guidance during routine operations, preventative maintenance, and upgrades of mechanical systems
Qualification
Required
B.S. in mechanical engineering or related discipline from an accredited university and 6+ years direct experience with proven product design, testing and implementation in an industrial setting
High understanding of mechanical engineering codes, standards, and design best practices
High proficiency in CAD software (e.g. SolidWorks) is essential. 3D Modeling and Drafting required
Experience using a Part Data Management (PDM) system including administration tasks and responsibilities
Experience working to quality standards on design activities, such as ASME NQA-1 or ISO 9001
Discipline, rigor, attention to detail, attention to safety, and procedural adherence are required
Strong troubleshooting, analytical, and problem-solving skills, such as those developed in fast-paced environments including the military, and other nuclear or radiopharmaceutical environments
Ability to handle projects that include many competing objectives and design constraints, with ability to resolve conflicts between objectives and productively generate engineering design documents accordingly in a fast-paced environment
Experience working and communicating productively in a multidisciplinary team including R&D, production, quality assurance, and engineering design functions
The successful candidate will possess a high degree of trust and integrity, able to communicate openly, and display respect and a desire to foster teamwork
Preferred
Experience designing consumer products /components strongly preferred
Familiarity in Design for Manufacturing (DFM) and Design for Assembly (DFA)
Familiarity with traditional machining (CNC, Lathe, Drill/tap, sheet metal) and 3D printing prototyping is preferred
Benefits
Competitive Compensation
Salary, eligible to participate in discretionary short-term incentive payments
Comprehensive Medical and Wellness Benefits Medical
Vision
Dental
Life
Life and Disability
Gender Affirmation Benefits
Parental Leave
401k Plan
Generous Paid Time Off (PTO)
21 days of annually accrued PTO
Generous Holiday Schedule
10 paid holidays
Relocation Assistance
Professional and Educational Support Opportunities
Flexible Work Schedule
Company
TerraPower
TerraPower is a nuclear energy technology firm that focuses on developing a sustainable and economic nuclear energy system.
501-1000 employees
Funding
Current Stage
Late StageTotal Funding
$1.49BKey Investors
Korea Hydro & Nuclear PowerUS Department of Energy
2026-01-20Secondary Market
2025-06-18Series Unknown· $650M
2022-08-15Series A· $830M
Leadership Team
Vanessa Estupinan, MS-HRM
Human Resources Business Partner
Recent News
2026-01-21
2026-01-21
2026-01-21
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