Terrestrial Energy · 14 hours ago
Nuclear Safety Analysis Engineer
Charlotte, NC
Full-time
Onsite
Mid, Senior Level
3+ years expTerrestrial Energy is a leading Generation-IV nuclear plant development company focused on zero-emissions cogeneration plants. The Nuclear Safety Analysis Engineer will be responsible for performing comprehensive safety analyses and supporting regulatory licensing activities for the company's advanced reactor design.
Clean EnergyCleanTechEnergyGeothermal EnergyNuclearRenewable Energy
No H1B
U.S. Citizen Only
Responsibilities
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
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
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
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
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
Qualification
Required
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
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
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
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
Candidates must be legally authorized to work in the US without the need for sponsorship for employment visa status
The successful candidate be able to access and use information subject to U.S. Export Control Laws
Preferred
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!
Company
Terrestrial Energy
Terrestrial Energy is a developer of a reactor power plant technology to provide carbon-free energy for the global industry.
51-200 employees
Funding
Current Stage
Public CompanyTotal Funding
$156.58MKey Investors
US Department of EnergyStrategic Innovation Fund
2025-10-28Post Ipo Equity· $50M
2025-10-28IPO
2025-07-15Series Unknown· $25.8M
Leadership Team
David LeBlanc
President, CTO
David O'Keefe
Vice President, Business Development and Project Management
Recent News
2026-01-08
Company data provided by crunchbase