Nuclear Shielding and Criticality Engineer

About the role

TerraPower is a nuclear technology company based in Bellevue, Washington. Our mission is to lead in new nuclear technologies, develop innovators and future leaders in the nuclear field, and bring forward the critical production of medical isotopes.

Responsibilities

• Perform radiation shielding design and analysis for advanced nuclear reactors, including calculating dose rates, activation rates, neutron fluence rates, and energy deposition rates.
• Develop radiation sources based on material activation analysis for non-fuel in-vessel components.
• Perform criticality calculations and develop upper subcritical limits (USLs).
• Establish and maintain formal documentation of analysis results.

Qualifications and Skills

• Experience:
• B.S. degree in Nuclear Engineering with 5-20 years’ experience
• M.S. degree in Nuclear Engineering with 3-15 years’ experience
• Ph.D degree in Nuclear Engineering with 2-10 years’ experience
• Strong MCNP skills and experience with performing radiation shielding calculations for both gammas and neutrons are required. Experience in criticality safety is desirable.
• Candidate should be familiar with variance reduction using MCNP, and features such as surface source read/write, mesh tallies, and weight windows. Familiarity with ADVANTG for weight windows generation is a plus.
• Excellent written and verbal and communication skills required.
• Ability and professionalism to work within published regulatory guidelines required.
• Experience working under NQA-1 quality program desired.
• Strong computational expertise desired.
• Experience with Attila /Attila4MC and computed aided drafting (e.g., SolidWorks, SpaceClaim) is a plus.
• Fast reactor experience a plus.
• Strong programming skills in any language is a plus, and Python is commonly used in this position.
• Knowledgeable or highly motivated to quickly learn basic nuclear reactor design concepts to meaningfully support engineering team.
• Acts independently to determine methods on new or special assignments. Works without specific direction from manager.
• Acts as a technical subject matter expert in the area of shielding or criticality safety.
• Mentors or provides technical guidance to less experienced engineers.
• Creates formal networks involving coordination among groups. Exerts cross-functional influence.

Job Functions

• Sitting for extended periods, bending/stooping, grasping/gripping, fine motor control (hands)
• Prolonged repetitive work
• Visual and audio focused work
• Stairs, typing/keyboard, standard and/or sitting working environment of >8 hours/day
• Minimal physical exertion

Benefits

• 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

Application Instructions

To apply for this position, please visit our careers page: TerraPower Career and Benefits information.