About this role
Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale. They are seeking a Senior Nuclear Criticality Safety Engineer responsible for performing criticality safety evaluations, developing the nuclear criticality safety basis, and architecting the nuclear criticality safety program for a nuclear fuel recycling facility.
Responsibilities:
- Identifying and evaluating nuclear criticality safety (NCS) hazards for fuel cycle facilities
- Performing criticality safety evaluations (CSEs) to demonstrate subcriticality under normal and credible abnormal conditions
- Developing the criticality code validation report
- Demonstrating compliance with the double-contingency principle
- Documenting criticality hazard analyses, CSEs, and supporting technical information
- Evaluating and implementing controlled parameters for the NCS program
- Developing the criticality accident alarm system and inadvertent criticality emergency response plan
- Supporting safety basis development and licensing efforts
- Developing and administering the NCS program, methodologies, and management measures
Requirements:
- Bachelors, Masters, or PhD in nuclear engineering, chemical engineering, or chemistry, or related field
- Minimum 5+ years experience performing CSEs as a part of a nuclear facility's safety basis
- Knowledge of nuclear science, physics of criticality, and chemistry
- Knowledge of nuclear fuel cycle processes and nuclear fuel cycle facility accident scenarios
- Proficient with Attila4MC, MCNP, SCALE, and/or Serpent codes and modules
- Familiarity with critical experiments and their purpose
- Knowledge of criticality-specific codes, standards, regulatory requirements, and industry practices for nuclear fuel cycle facilities
- Familiarity with NUREG-1513, NUREG-1520, NUREG/CR-6410, NUREG/CR-6698, NUREG/CR-7311, and NRC RG 3.71
- Passionate about clean energy and making advanced fission a reality
- Knowledgeable about structural design, analysis, and construction
- Eager to work on a dynamic team, receive constructive feedback, and grow with us
- Willing to think differently and learn quickly
- Comfortable in a fast-paced, highly iterative startup environment
- Excited to think creatively, critically, and reflectively about the problems they are solving, while not leaning only on what has been done before
- An excellent writer who can communicate technical concepts in modern active voice
- Knowledge of used nuclear fuel recycling technologies
- 10+ years of experience performing criticality safety evaluations for an NRC licensed fuel cycle facility