Nuclear Criticality Safety Engineer – Fuel Design

TerraPower LLC.; Bellevue (WA); On-site; USD 120,000 - 190,000; Full time

Job summary

TerraPower LLC in Bellevue, WA, is seeking a Criticality Safety Engineer to join the Natrium Fuel Design and Supply team. You will develop and implement nuclear criticality safety analyses for Natrium fuel fabrication, including receipt, storage, handling, and transport of fuels, ensuring subcriticality under all conditions.

The role requires performing calculations with SCALE/KENO and MCNP, creating safety evaluations and limits, and supporting design reviews and licensing through rigorous

Responsibilities

• Develop nuclear criticality safety evaluations for fuel fabrication steps, including fresh fuel receipt, storage, handling, inspection, and transportation operations.
• Perform criticality safety calculations using industry-standard tools (i.e. SCALE/KENO, MCNP, etc) for Natrium fuel fabrication and related processes, including HALEU feedstock, fuel fabrication, and fresh fuel storage and transportation.
• Establish engineered and administrative controls to ensure subcriticality under normal, abnormal, and credible accident conditions.
• Develop and maintain Criticality Safety Evaluations, Criticality Safety Limits, and supporting technical documentation.
• Support design reviews to ensure equipment, storage configurations, fuel fabrication processes, and facility layouts satisfy criticality safety requirements.
• Evaluate design changes through engineering change processes and assess impacts to nuclear criticality safety.
• Support licensing activities by preparing technical

Skills

Criticality safety

Tools

SCALE/KENO

MCNP

Job description

TerraPower LLC in Bellevue, WA, is seeking a Criticality Safety Engineer to join the Natrium Fuel Design and Supply team. You will develop and implement nuclear criticality safety analyses for Natrium fuel fabrication, including receipt, storage, handling, and transport of fuels, ensuring subcriticality under all conditions.

The role requires performing calculations with SCALE/KENO and MCNP, creating safety evaluations and limits, and supporting design reviews and licensing through rigorous