Nuclear Safety Analysis Manager

Job Description

Job Title

Safety Manager

Location: Oakville, Ontario, Canada

About the Company

Terrestrial Energy is developing, for near‑term commercial operation, a zero‑emissions cogeneration plant for the global industry using its proprietary Integral Molten Salt Reactor (IMSR) fission technology in an innovative, small and modular design. The IMSR is a Generation IV non‑Light Water Reactor operating at the high temperature required for broad industrial relevance with transformative economic potential. It offers grid‑based electric power generation and industrial cogeneration for many energy‑intensive industries, including petrochemical and chemical synthesis for hydrogen and ammonia production. The IMSR plant achieves almost a 50 percent improvement in efficiency of electric power generation compared to Light Water Reactor plants and supports rapid global decarbonisation of the primary energy system.

Responsibilities

• Lead, mentor, and develop a Safety Analysis team, establishing a world‑class safety analysis organization and managing all aspects of safety analysis and regulatory compliance for the IMSR technology.


• Recruit, develop, and lead a team of Safety Engineers and Analysts, collaborating closely with design and licensing teams to ensure that the safety case for the advanced reactor design meets all regulatory requirements and demonstrates inherent safety features.


• Oversee deterministic and probabilistic safety analyses for the IMSR design, including Design Basis Accidents and Beyond Design Basis Accidents.


• Ensure comprehensive transient and accident analyses using thermal‑hydraulic and neutronics codes and manage safety systems performance assessments.


• Direct dose consequence and radiological release scenario analyses, sensitivity and uncertainty analysis programs, and integrate safety analyses across multiple engineering project teams.


• Prepare safety analysis chapters for licensing documentation (PSAR, FSAR) and DOE‑required documents (PDSA, DSA), adhering to DOE‑STD‑3009.


• Lead regulatory review processes, coordinate responses to technical questions from regulatory bodies (CNSC, NRC, DOE), and ensure compliance with all regulatory requirements and guidance.


• Develop long‑term safety analysis strategy aligned with company licensing and deployment goals and collaborate with the licensing team to support regulatory submissions.


• Identify and implement improvements to safety analysis methods and tools, present results and strategies to senior leadership, and represent the company at industry conferences and technical forums.


• Develop and validate computer models for safety analysis using industry‑standard codes, perform single and coupled physics simulations, and document modeling assumptions and results.


• Prepare detailed technical reports, create clear visualizations and presentations, maintain comprehensive documentation, and contribute to technical publications.


• Collaborate closely with Physics, Thermal‑Hydraulics, Systems Engineering, and Design Teams, interface with external partners, and support integrated safety assessments across disciplines.


• Ensure comprehensive documentation of safety analysis methodologies and maintain a quality assurance program in compliance with nuclear quality assurance requirements.

Education

• M.Sc. or Ph.D. in Nuclear Engineering, Mechanical Engineering, Chemical Engineering, or a related field.


• Professional Engineer (P.Eng.) designation or equivalent professional certification preferred.

Experience

• Minimum 8 years of experience in nuclear safety analysis.


• Minimum 3 years of leadership or management experience, preferably managing technical teams.


• Demonstrated experience leading safety analysis programs for nuclear facilities.


• Experience with regulatory licensing processes (NRC, CNSC, or DOE).


• Proven track record of successful regulatory interactions and licensing document preparation.


• Experience managing multiple projects and priorities simultaneously.

Technical Skills

• Proficiency with thermal‑hydraulic analysis codes (Flownex, REPLAP5, or similar).


• Knowledge of neutronics codes (MCNP, SCALE, Serpent, or similar).


• Understanding of severe accident phenomena and analysis methods.


• Familiarity with probabilistic risk assessment concepts.


• Strong analytical and problem‑solving skills.


• Proficiency with technical computing tools (MATLAB, Python, or similar).


• Experience with data analysis and visualization.

Professional Skills

• Excellent technical writing and documentation skills.


• Strong attention to detail and commitment to quality.


• Ability to work independently and as part of a team.


• Effective communication skills for technical and non‑technical audiences.


• Project management and time‑management capabilities.


• Critical thinking and ability to defend technical positions.

Assets

• Experience with advanced reactor designs or Generation IV systems.


• Familiarity with molten salt reactor technology and safety characteristics.


• Experience with US NRC, US DOE, or Canadian CNSC licensing processes.


• Knowledge of relevant regulatory guides and industry standards (NUREG, CSA, IAEA, DOE STD‑1189, DOE‑STD‑3009, 10 CFR 830).


• Experience with severe accident analysis codes.


• Background in probabilistic risk assessment or probabilistic safety assessment.


• Experience with uncertainty quantification methods.


• Knowledge of source‑term analysis and radiological consequence modelling.


• Knowledge of international nuclear safety standards (IAEA, WENRA).


• Experience with digital instrumentation and control safety analysis.


• Previous experience in consulting or vendor roles supporting multiple nuclear projects.


• Publications in peer‑reviewed journals or conference proceedings.


• Active participation in industry standards development (ANS, ASME, CSA).

Benefits

• Extended Healthcare Plan (Medical, Disability, Dental & Vision) plus an additional Health Spending Account.


• A vacation policy designed to support your work‑life balance.


• EAP programs available to you and your family.


• Wellness subsidy.


• Annual performance review.


• Paid United Way Volunteer Days – a chance to give back.


• Career development opportunities.

Legal and Compliance

Terrestrial Energy requires that the successful candidate be able to access and use information subject to U.S. export control laws, which mandate all citizenships (including dual citizenships) be from the U.S. Department of Energy’s list of generally authorized countries (10 CFR Part 810 Appendix A). Additional information can be found at https://www.ecfr.gov/current/title-10/chapter-III/part-810/appendix-Appendix%20A%20to%20Part%20810 and https://www.energy.gov/nnsa/10-cfr-part-810. Candidates must be legally authorized to work in Canada without the need for sponsorship.

Equal Opportunity Employer

Terrestrial Energy is an Equal Opportunity Employer – Minority / Female / Disability / Gender Identity / Sexual Orientation / Age. The Company encourages applications from all qualified individuals. If you require accommodation during the application or interview process, please advise us as soon as possible so appropriate arrangements can be made. If you require technical support in an accessible format, contact Accessibility@terrestrialenergy.com.

Job Details

• Seniority Level: Director


• Employment Type: Full‑time


• Job Function: Management and Manufacturing


• Industry: Nuclear Electric Power Generation