Safety Analysis Engineer

Interested in helping us transform thermal and electric energy?

Become a part of the leading Generation-IV nuclear plant development team.

Required

Terrestrial Energy is developing for near-term commercial operation, a zero-emissions cogeneration plant for global industry using its proprietary Integral Molten Salt Reactor (IMSR) fission technology in an innovative, small and modular plant design. The IMSR is a non-Light Water Reactor of the Generation IV class that operates at the high temperature required for broad industrial relevance with transformative economic potential. The IMSR plant is capable of grid-based electric power generation and industrial cogeneration in many energy-intensive industries, including petrochemical and chemical synthesis for hydrogen and ammonia production. The IMSR plant offers a near 50 percent improvement in efficiency of electric power generation compared to Light Water Reactor nuclear plants. Its industrial cogeneration capability delivers to today’s markets industrial competitiveness, security of energy, and zero-emissions industrial production. The IMSR plant’s use of existing industrial materials, components, and fuels supports its near-term deployment, setting the stage for a rapid global decarbonization of the primary energy system. To execute this plan, we are now looking to add talented people to the team, each of whom will:

• improve our team by adding diverse perspectives and innovative ways of problem solving
• have demonstrated exceptional results in engineering projects
• be a team player with the ability to collaborate closely and interact with other groups
• be flexible and adaptable to change
• have skillset and experience that relate to the following role:
  
  

The Safety Analysis Engineer, under the direction of Safety Manager, is critical to demonstrating the safety characteristics of Terrestrial Energy’s IMSR technology and supporting regulatory licensing activities. The successful candidate is primarily responsible for performing comprehensive safety analyses, developing accident scenarios, and contributing to safety case documentation that demonstrates compliance with regulatory requirements and the inherent safety features of our advanced reactor design.

Other Responsibilities Include

Safety Analysis

• Perform deterministic and probabilistic safety analyses for the IMSR design
• Develop and analyze Design Basis Accidents (DBAs) and Beyond Design Basis Accidents (BDBAs)
• Conduct transient and accident analysis using thermal-hydraulic and neutronics codes
• Evaluate plant response to Postulated Initiating Events
• Assess the performance of Safety Systems and engineered safety features
• Analyze dose consequences and radiological release scenarios
• Perform sensitivity and uncertainty analyses
  
  

Modeling and Simulation

• Develop and validate computer models for safety analysis using industry-standard codes
• Build thermal-hydraulic models of reactor systems and components
• Perform single and coupled physics simulations
• Validate models against experimental data and benchmarks
• Document modeling assumptions, methodologies, and results
  
  

Regulatory Support

• Prepare safety analysis chapters for licensing documentation including Preliminary Safety Analysis Report (PSAR) and Final Safety Analysis Report (FSAR) for NRC/CNSC licensing
• Develop DOE-required safety analyses including Preliminary Documented Safety Analysis (PDSA) and Documented Safety Analysis (DSA) in accordance with DOE-STD-3009
• Highlight key safety decisions including target performance of structures, systems, and components (SSCs), safety system responses to normal and off-normal operations, and facility security considerations
• Define classification rules and terminology for safety SSCs, including application of the hierarchy of controls and Defense in Depth principles to ensure safety
• Perform analysis of most limiting potential dose consequences (e.g., unmitigated or Maximum Hypothetical Accident scenarios) to support Natural Phenomena Hazard (NPH) Natural Design Category (NDC) categorization
• Support validity assessment of selected safety document format and content, applicability of SSC classifications, and other graded approaches
• Support regulatory review processes and respond to technical questions from regulatory bodies (CNSC, NRC, DOE)
• Ensure analyses comply with applicable regulatory requirements and guidance
• Participate in regulatory meetings and technical discussions
• Support development of technical specifications and operational limits
  
  

Documentation and Reporting

• Prepare detailed technical reports documenting analysis methodologies, assumptions, and results
• Create clear visualizations and presentations of analysis results
• Maintain comprehensive documentation of safety analysis activities
• Contribute to technical publications and conference papers
• Develop and maintain analysis procedures and quality assurance documentation
  
  

Collaboration

• Work closely with Physics, Thermal-Hydraulics, Systems Engineering, and Design Teams
• Interface with external partners including national laboratories and consultants
• Participate in design reviews and technical meetings
• Support integrated safety assessments across multiple disciplines
• Contribute to continuous improvement of safety analysis methods
  
  

Requirements

Education

• M.Sc. or Ph.D. in Nuclear Engineering, Mechanical Engineering, Chemical Engineering, or related field; OR
• B.Sc./B.Eng. with minimum 5 years of relevant nuclear safety analysis experience
  
  

Experience

• Minimum 3 years of experience in nuclear safety analysis or related field
• Experience with safety analysis codes and methodologies
• Knowledge of nuclear reactor safety principles and accident phenomena
• Understanding of regulatory requirements for nuclear facilities
• Experience with deterministic safety analysis
  
  

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 (PRA) 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 (MELCOR, MAAP, or similar)
• Background in probabilistic risk assessment (PRA) or probabilistic safety assessment (PSA)
• Experience with uncertainty quantification methods
• Knowledge of source term analysis and radiological consequence modeling
• Familiarity with quality assurance requirements for nuclear analysis (CSA N286.7, 10 CFR 50 Appendix B)
• Professional Engineer (P.Eng./P.E.) designation
• Publications in nuclear safety or reactor analysis
  
  

Benefits

• Extended Healthcare Plan (Medical, Disability, Dental & Vision), + 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
  
  

Please submit a Resume and Cover Letter.

Candidates must be legally authorized to work in Canada without the need for sponsorship for employment visa status.

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 And Can Be Found Here

https://www.ecfr.gov/current/title-10/chapter-III/part-810/appendix-Appendix%20A%20to%20Part%20810) unless a specific authorization from the U.S. Department of Energy is obtained or unless you are a U.S. citizen, U.S. national, U.S. permanent resident, or protected individual under the U.S. Immigration and Naturalization Act (8 U.S.C. 1324b(a)(3)). Additional information can be found here: https://www.energy.gov/nnsa/10-cfr-part-810.

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 a format that is accessible to you, please contact [email protected]