Senior Manager, Core Mechanical Performance Testing

Everett, WA

Full Time

Posted September 29, 2026

$184k - $246k

Application opens on company website

Source: greenhouse View original listing
Freshness: Open in the current public read path; this is not an employer guarantee.Last observed September 30, 2026
Classification: Modern power-system classification not yet published for this listing.Legacy source industry field: Nuclear Energy
Pay provenance: Employer-provided pay

TerraPower, LLC is seeking a highly motivated Senior Manager to support the engineering efforts of the Natrium Fuel Engineering and Technology team.

Develop and manage a highly effective group focused on a broad portion of the interdisciplinary technical scope:
Ensure the production of project and technical scope according to and within project schedule and budget:
Ensure the technical adequacy and quality of work products:

Minimum of B.S. in applicable engineering field
Minimum 5 years of experience testing systems and components
Minimum 3 years in a combined technical leadership role with ongoing requirement for performance of project technical scope, in addition to other manager responsibilities
Experience in mechanical testing and/or flow testing required
Experience with maintenance of plant or test systems and components is required
Experience with lifting and handling is required
Testing experience that ranges from Research & Development through deployment
ASME NQA-1 testing experience required
Experience managing a multi-disciplinary team required
Excellent writing, presentation and communication skills
Ability to work with minimum direction to solve challenging problems
The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork.
This position is subject to qualification requirements in accordance with ANSI/ANS 3.1. Candidates must meet the minimum education and experience criteria applicable to the role, including relevant nuclear industry experience where required. Verification of data will be part of the hiring process.

Competitive Compensation
Salary, eligible to participate in discretionary short-term incentive payments
Comprehensive Medical and Wellness Benefits Medical Vision Dental 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
TerraPower Career and Benefits information: https://www.terrapower.com/contact-us/careers/