Senior Nuclear Criticality Safety Engineer

Thanks for your interest in Oklo! We are searching for a Senior Nuclear Criticality Safety Engineer to join our team. Position Description A Senior Nuclear Criticality Safety Engineer at Oklo is responsible for performing criticality safety evaluations, developing the nuclear criticality safety basis, and architecting the nuclear criticality safety program for a first-of-a-kind used nuclear fuel recycling facility. Specific responsibilities may include: - 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 Minimum Qualifications: - 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 Bonus Qualifications: - Knowledge of used nuclear fuel recycling technologies - 10+ years of experience performing criticality safety evaluations for an NRC licensed fuel cycle facility Competencies We are looking for a Senior Nuclear Criticality Safety Engineer that is: - 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 Who you are: A startup person : You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast-paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that.

Motivated : You are self-motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work-life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team-player : Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator : We need a person who is not only technically competent but also a clear and upbeat communicator.