Criticality Safety Officer

Standard Nuclear•Idaho Falls, ID

2d•Onsite

About The Position

Standard Nuclear is fueling America’s nuclear renaissance at industrial scale. Our mission is to deliver the essential building blocks of nuclear power—enabling cost-effective, safe, and secure energy for the world. The Criticality Safety Officer (CSO) is responsible for establishing, implementing, and maintaining the nuclear criticality safety program across Standard Nuclear’s fuel manufacturing and handling operations. This role ensures that all fissile material activities are conducted safely and in full compliance with applicable regulatory requirements and industry standards. The CSO provides technical authority on criticality safety, including evaluation of processes, development of safety controls, and review of operations involving nuclear materials. This role works closely with engineering, operations, and EH&S teams to ensure that criticality safety is fully integrated into facility design, procedures, and day-to-day operations.

Requirements

Bachelor’s degree in Nuclear Engineering or a related field
7+ years of experience in nuclear criticality safety or related nuclear safety roles
Demonstrated experience performing criticality safety evaluations and analyses
Strong understanding of criticality safety principles and controls (mass, geometry, moderation, interaction)
Familiarity with applicable standards (ANSI/ANS-8 series, DOE/NRC guidance)
Experience working in fuel fabrication, nuclear materials processing, or similar environments
Strong technical judgment and ability to make conservative safety decisions
Ability to work closely with operations, engineering, and regulatory stakeholders
Experience supporting audits and regulatory interactions
U.S. citizens, lawful permanent residents, protected individuals as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.

Nice To Haves

Master's or PhD preferred

Responsibilities

Develop, implement, and maintain the nuclear criticality safety program
Establish criticality safety policies, procedures, and controls aligned with regulatory and industry standards
Ensure integration of criticality safety requirements into operations, engineering, and facility design
Maintain documentation, evaluations, and program records in an audit-ready state
Perform and review criticality safety evaluations (CSEs) for processes involving fissile materials
Define safe operating limits, controls, and administrative requirements
Evaluate changes to processes, equipment, or materials for criticality safety impact
Provide technical guidance on geometry control, moderation control, mass limits, and spacing requirements
Support and monitor operations involving fissile material handling, processing, and storage
Ensure criticality safety controls are properly implemented and maintained in the field
Provide oversight for new process startup, modifications, and abnormal conditions
Participate in work planning and hazard analysis for activities involving nuclear materials
Ensure compliance with applicable DOE, NRC, and ANSI/ANS criticality safety standards
Support internal and external audits, assessments, and regulatory inspections
Interface with regulatory bodies and provide technical support during reviews and inquiries
Maintain readiness for inspections and demonstrate program effectiveness
Develop and support criticality safety training programs for operations and technical personnel
Ensure personnel understand and adhere to criticality safety requirements
Promote a strong nuclear safety culture with emphasis on conservative decision-making
Support investigation of criticality safety events, near misses, or deviations
Perform root cause analysis and implement corrective actions
Ensure lessons learned are incorporated into procedures and training