Nuclear Criticality Safety Engineer (Nuclear Fuel)

Location: Los Angeles, CA, United States

Salary: $80,000–$170,000 annually

Company

hirify.global designs, builds, and operates uranium enrichment services in the United States to support nuclear fuel production.

What you will do

• Develop and maintain nuclear criticality safety evaluations for processes involving fissile materials.
• Perform criticality safety analyses with computational tools such as SCALE and MCNP.
• Ensure compliance with NRC, DOE, and ANSI/ANS criticality safety requirements.
• Audit, inspect, and review facility operations to identify and mitigate criticality safety risks.
• Collaborate with engineering, operations, and regulatory teams to implement safety measures.
• Provide technical guidance and training, investigate incidents, and maintain documentation for audits and regulatory reviews.

Requirements

• Bachelor’s degree in Nuclear Engineering, Physics, or a related field.
• Strong understanding of engineering fundamentals, criticality safety regulations, standards, and methodologies, including 10 CFR Part 70 and the ANSI/ANS-8 series.
• Proficiency with SCALE, MCNP, or similar computational software.
• Ability to perform trade studies and make clear recommendations using first principles and engineering fundamentals.
• Strong analytical, problem-solving, verbal, and written communication skills.
• Ability to work collaboratively and work extended hours or weekends as necessary.

Nice to have

• Certification as a Nuclear Criticality Safety Engineer, such as ANSI/ANS-8.24.
• Advanced degree.
• Professional Engineer license or ability to obtain one.
• Experience in a fast-paced, highly technical, or entrepreneurial engineering environment.
• Evidence of exceptional ability through prior projects, portfolios, or completed products.

Culture & Benefits

• Mission-driven environment focused on making nuclear energy more affordable.
• Lean engineering and operations team using a first-principles approach.
• Culture emphasizing urgency, accountability, and transparency.
• Full-time hires may be eligible for stock options.
• Medical, vision, dental, and 401(k) benefits are available.