Nuclear Criticality Safety

About the Company

At General Matter, we’re strengthening America’s capacity in nuclear energy to create a new set of possibilities, from generating clean energy at scale to forging energy security. 

With nuclear energy powering the next wave of American progress, we’re ensuring our country has the fuel it needs for the next generation of reactors, no matter what’s happening around the world.

We are backed by top tier investors. Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production. We are a mission-driven company with a culture of urgency, accountability and transparency.

About This Role

We are seeking a skilled Nuclear Criticality Safety Engineer to join our team and play a critical role in ensuring the safe and effective handling of nuclear materials. You will be part of the team responsible for developing, implementing, and maintaining a criticality safety program to ensure compliance with regulatory requirements and industry standards. You will conduct evaluations, perform risk assessments, and provide technical expertise to support safe operations within a nuclear fuel cycle facility.

Responsibilities:

• Develop and maintain nuclear criticality safety evaluations (CSEs) for processes involving fissile materials.
• Perform criticality safety analyses, utilizing computational methods and tools (e.g., SCALE, MCNP) to assess system safety and compliance.
• Ensure compliance with NRC, DOE, and ANSI/ANS criticality safety standards and regulations.
• Conduct audits, inspections, and reviews of facility operations to identify and mitigate criticality safety risks.
• Collaborate with engineering, operations, and regulatory teams to implement effective safety measures.
• Provide technical guidance and training to personnel on criticality safety principles and procedures.
• Investigate criticality safety incidents and develop corrective actions as necessary.
• Maintain accurate documentation and records to support audits and regulatory reviews.

Basic Qualifications:

• Strong understanding of engineering fundamentals.
• Ability to perform trade studies and make clear recommendations using first principles and engineering fundamentals even with partial information.
• Bachelor’s degree in Nuclear Engineering, Physics, or a related field. 
• Strong knowledge of criticality safety regulations, standards, and methodologies (e.g., 10 CFR Part 70, ANSI/ANS-8 series).
• Proficiency in computational tools such as SCALE, MCNP, or similar software.
• Excellent analytical and problem-solving skills.
• Strong verbal and written communication skills, with the ability to convey technical information to diverse audiences.
• Ability to work collaboratively in a team-oriented environment.

Preferred Skills and Experience:

• Evidence of exceptional ability (prior projects, portfolio of work, completed products, etc).
• Experience in a fast-paced engineering environment or a highly technical role requiring a resourceful, entrepreneurial approach to complete tasks within tight timeframes or budget constraints.
• Certification as a Nuclear Criticality Safety Engineer (e.g., ANSI/ANS-8.24).
• Advanced degrees.
• Professional Engineer (PE) license is preferred or the ability to obtain one.

Additional Requirements:

• Ability to work extended hours and weekends as necessary.

Compensation and Benefits

Your actual level and base salary will be determined on a case-by-case basis and may vary based on the following considerations: job-related knowledge and skills, education, and experience.

Base salary is just one part of your total rewards package at General Matter. You may also be eligible for long-term incentives, in the form of company stock options. You will also receive access to comprehensive medical, vision, and dental coverage, access to a 401(k) retirement plan, HSA/FSA/Commuter benefits, and various other benefits. General Matter also offers all employees an 'Unlimited Time Off' policy.