Mechanical Engineer - TPI

9/1/2025

The Mechanical Engineer will design, develop, integrate, and commission mechanical systems for TPI Ac-225 production facilities, focusing on hot cells and gloveboxes. Responsibilities include leading the design of mechanical systems, maintaining specifications, and collaborating with project teams during facility design and construction phases.

Salary

113605 - 208762 USD

Working Hours

40 hours/week

Company Size

501-1,000 employees

Language

English

Visa Sponsorship

About The Company

TerraPower is a leading nuclear innovation company that strives to improve the world through nuclear energy and science. TerraPower’s innovators create technologies to provide safe, affordable and abundant carbon-free energy. They devise ways to use heat and electricity to drive economic growth while decarbonizing industry. And they develop processes to extract radioisotopes for medical use in lifesaving cancer treatments. We’re proud of our culture of mission-driven innovation. Our employees develop clean, safe energy to address climate change and global poverty, and drive medical advances for human health applications. We attract exceptional people and encourage them to confront big challenges with bold creativity. We drive hard for progress while keeping our values at the forefront. TerraPower was founded by Bill Gates and a group of like-minded visionaries that decided the private sector needed to take action in developing advanced nuclear energy to meet growing electricity needs, mitigate climate change and lift billions out of poverty. Advanced reactors and other isotopic applications are now possible with technology and enhanced computing capabilities that were unimaginable a few decades ago. At TerraPower, we are innovating in nuclear to improve the lives of people everywhere and to build the clean energy of tomorrow – today. TerraPower is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by federal, state, or local law. In addition, as a federal contractor, TerraPower has instituted an Affirmative Action Plan (AAP) in an effort to proactively recruit, hire, and promote women, minorities, disabled persons and veterans.

About the Role

TITLE:  Mechanical Engineer - TPILOCATION:  Bellevue, WA The TerraPower Isotopes® (TPI™) division has been established to pursue medical isotopes development--advancing nuclear science for significant human health benefits. We seek to support revolutionary radiotherapies for treatments of various cancers through the supply of radioisotopes. TerraPower currently has unique access to a supply of thorium for the long-term production of actinium-225 in the growing alpha therapy market and intends to expand into other nuclear related medical treatments.The TerraPower Isotopes (TPI) program is an integral part of the Washington State based TerraPower team, a company working to raise living standards globally. In 2006, the company originated with Bill Gates and a group of like-minded visionaries who evaluated the fundamental challenges to raising living standards around the world. TerraPower’s mission is to be a world leader in new nuclear technologies, while developing innovators and future leaders in the nuclear field.TerraPower is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced radiopharmaceutical applications and influencing change within nuclear medicine. TerraPower is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected veteran status, or any other characteristic protected by federal, state, or local law. In addition, as a federal contractor, TerraPower has instituted an Affirmative Action Plan (AAP) to proactively recruit, hire, and promote women, minorities, disabled persons and veterans.Mechanical Engineer - TPIThe TerraPower Isotopes® (TPI™) Mechanical Engineer will play a key role in the design, development, integration and commissioning of mechanical systems within TPI Ac-225 production facilities with particular emphasis on hot cells and gloveboxes suitable for handling of alpha emitting and long-lived radionuclides. The TPI Mechanical Engineer will join the team designing new containment systems and related facilities and equipment as TPI expand our production of actinium and go on to support installation and commissioning of that equipment and future mechanical design work for TPI. The ideal candidate will have experience in the design of shielded enclosures, conveyor systems, and/or other mechanical transfer systems commonly used in radiological environments.Responsibilities: •    Lead or support the design and specification of mechanical systems for complex radiological operations, including conveyor belts, transfer systems, and manipulators, especially within hot cells and gloveboxes from requirements development through to final design, successful commissioning and startup.•    Serve as either originator or design backup for hot cells (HC) and gloveboxes (GB), contributing to overall layout planning, shielding and containment strategies for new production lines and facilities.•    Originate, review and maintain equipment requirements, specifications, calculations, process narratives, commissioning and installation plans, and IQ/OQ/PQ documents associated with the design and installation of mechanical systems.•    Participate in the integration of mechanical systems with facility infrastructure and process workflows. Identify and ensure effective application of correct design codes into the design of facility and lab systems such as ASME, ASCE, ANS, ASTM, IEEE, NFPA, etc.•    Communicate effectively across TPI team, and with key stakeholders to support review of engineering designs and gather necessary design input information.•    Collaborate with engineering and project teams during facility design and construction phases to ensure mechanical system, interface and facility requirements are met.•    Support trouble shooting of mechanical equipment on an as-needed basis, maintaining, and modifying equipment, and coordination across the TPI team to prepare and execute work procedures.•    Assist in developing procurement packages, communicating with procurement contract administrators, and overseeing fabrication and delivery of custom mechanical equipment.•    Communicate effectively with external vendors to review designs, maintain design documentation, manage timelines, ensure accuracy and efficiency of fabrication work, and support factory acceptance testing.•    Provide technical guidance during routine operations, preventative maintenance, and upgrades of mechanical systems.Key Qualifications and Skills •    B.S. in mechanical engineering or related discipline from an accredited university and 6+ years direct experience with proven equipment design, testing and commissioning skills in an industrial setting.•    Understanding of mechanical engineering codes, standards, and design best practices.•    Proficiency in CAD software (e.g. SolidWorks, AutoCAD) is essential. •    Experience designing hot cells, gloveboxes, or other shielded mechanical systems strongly preferred.•    Familiarity with conveyor and material transfer systems is highly desirable.•    Prior experience designing, installing systems and performing acceptance testing for equipment that operates within nuclear facilities, radiopharmaceutical facilities, or radiological areas is essential.•    Experience leading acceptance testing and full commissioning of equipment is essential.•    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.•    Excellent technical writing, communication, and presentation skills.•    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.•    Actual position starting level and title will be determined based on assessment of qualifications.Job Functions Job Functions are physical actions and/or working conditions associated with the position.  These functions may also constitute essential functions for the job which the employee must be able to fulfill, with or without accommodation.  Information provided below is to help describe the job so that the applicant has a reasonable understanding of the job duties/expectations.  An applicant's ability to perform and/or tolerate these actions and conditions will be discussed and workplace accommodations may be made on a case-by-case basis following an individualized assessment of the applicant and other considerations, including but not limited to any governing safety standards.•    Motor Abilities: Sitting for extended periods, bending/stooping, grasping/gripping, fine motor control (hands)•    Physical exertion and/or requirements: Minimal, with ability to safely lift up to 25 pounds•    Repetitive work: Prolonged•    Special Senses: Visual and audio focused work•    Work Conditions: Stairs, typing/keyboard, standard and/or sitting working environment of >8 hrs./day•    Travel required 10-20%TerraPower’s technology is controlled for export by various agencies of the U.S. Government.  TerraPower must evaluate applicants who are foreign nationals (other than asylees, refugees, or lawful permanent residents) in accordance with U.S. Government export control requirements.  To facilitate TerraPower’s export control reviews, you will be asked as part of the application process to identify whether you are a U.S. Citizen or national, asylee, refugee, or lawful permanent resident of the United States.  Government export authorization approval times vary.  Based on the business needs for a particular position, TerraPower may not consider a foreign national from a country if it is impracticable to obtain timely Government export approval.  Job detailsSalary Range Level 10: $113,605 - $170,408Salary Range Level 11: $125,257 - $208,762*Typically, our employee salaries are within .90 – 1.0 of the mid-point of the posted salary bands.  Any salary offered within the posted salary band is based on market data and commensurate with the selected candidate’s qualifications and experience.  This range is specific to Washington State.Benefits: •    Competitive Compensation•    Salary, eligible to participate in discretionary short-term incentive payments•    Comprehensive Medical and Wellness Benefits for family or individualo         Visiono         Dentalo         Lifeo         Life and Disabilityo         Gender Affirmation Benefitso         Parental Leave•    401k Plan•    Generous Paid Time Off (PTO)o         21 days of annually accrued PTO•    Generous Holiday Scheduleo         10 paid holidays•    Relocation Assistance•    Professional and Educational Support Opportunities•    Flexible Work Schedule TerraPower Career and Benefits information:  <a href="https://www.terrapower.com/contact-us/careers/">https://www.terrapower.com/contact-us/careers/</a>

Key Skills

Mechanical EngineeringDesignCommissioningTroubleshootingTechnical WritingCommunicationProblem-SolvingAttention to DetailSafetyTeamworkCAD SoftwareQuality StandardsAnalytical SkillsProject ManagementRegulatory ComplianceFabrication Oversight

Benefits

Competitive CompensationComprehensive Medical and Wellness Benefits401k PlanGenerous Paid Time OffGenerous Holiday ScheduleRelocation AssistanceProfessional and Educational Support OpportunitiesFlexible Work Schedule

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