Nuclear Safety Analysis Manager

Interested in helping us transform thermal and electric energy?

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

This position is remote until the office opens in or around Bryan, TX February 2026, after which time it will be a 100% on site role.

Come join us at Terrestrial Energy, a US developer of advanced, Generation IV nuclear reactors.  We are growing our workforce to develop and deploy our Integral Molten Salt Reactor (IMSR) small modular nuclear plant to provide cost-competitive, clean firm heat and power to industry.

The Company has recently completed a merger creating a publicly listed operating company  (NASDAQ “IMSR”), to secure the capital resources for our next growth phase.  With the current alignment of US Federal and State government, as well as industry interest in Small Modular Reactor (SMR) and advanced reactor technologies such as Terrestrial Energy’s IMSR, there is today a unique and compelling opportunity to participate in the execution of the company’s growth business plan.

The Company is building a team of high-performing business professionals and leaders in engineering, R&D, product management and business development areas at our Charlotte, North Carolina headquarters and future project sites.  We are looking for talented individuals who can help build the organization, processes, and goal-orientated corporate culture to lead the company in our expansion.  We are seeking people who:

Have US market experience and perspectives bringing good judgement and innovative approaches to problem solving and business plan execution.

Have demonstrated exceptional performance in past engineering projects.

Offer exceptional leadership and team building capabilities.

Have a deep understanding of the requirements for advanced reactor development.

Can assist in the creation of the discipline and organized company structure, and contributed to a culture of excellence, necessary for the development and deployment of the Company’s IMSR plant.

Can thrive in a fast growing and opportunity business environment, and are capable of flexibility and adaptability at a time of organizational change.

Have the specific skillset and experience for the following role:

The Safety Manager, under the direction of the Engineering Director, is primarily responsible for leading and building our safety analysis team, establishing and growing a world-class safety analysis organization while managing all aspects of safety analysis and supporting regulatory compliance and licensing activities for the development and deployment of our IMSR technology. The successful candidate will recruit, develop, and lead a team of safety engineers and analysts, collaborate closely with the design and licensing teams, and ensure the safety case for our advanced reactor design meets all regulatory requirements and demonstrates the inherent safety features of our technology. Other responsibilities include:

Leadership and Team Management

Lead, mentor, and develop a team of Safety Analysis Engineers, Safety Analysts, and Specialists

Establish team priorities, allocate resources, and manage workload across multiple projects

Conduct performance evaluations and support professional development of team members

Foster a culture of technical excellence, safety consciousness, and continuous improvement

Recruit and build a high-performing safety analysis team

Establish and maintain safety analysis standards, procedures, and best practices

Manage departmental budget and resource planning

Safety Analysis Program Management

Oversee deterministic and probabilistic safety analyses for the IMSR design

Direct the development and analysis of Design Basis Accidents (DBAs) and Beyond Design Basis Accidents (BDBAs)

Ensure comprehensive transient and accident analyses using thermal-hydraulic and neutronics codes

Oversee evaluation of plant response to postulated initiating events

Manage assessment of safety systems and engineered safety features performance

Direct dose consequence and radiological release scenario analyses

Oversee sensitivity and uncertainty analyses programs

Ensure integration of safety analyses across multiple engineering project teams

Regulatory and Licensing Leadership

Prepare safety analysis chapters for licensing documentation including Preliminary Safety Analysis Report (PSAR) and Final Safety Analysis Report (FSAR) for NRC/CNSC licensing

Oversee development of DOE-required safety analyses including Preliminary Documented Safety Analysis (PDSA) and Documented Safety Analysis (DSA) in accordance with DOE-STD-3009

Direct development of 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

Establish classification rules and terminology for safety SSCs, including application of the hierarchy of controls and Defense in Depth principles to ensure safety

Oversee analysis of most limiting potential dose consequences (e.g., unmitigated or Maximum Hypothetical Accident scenarios) to support Natural Phenomena Hazard (NPH) Design Category (NDC) categorization

Ensure validity assessment of selected safety document format and content, applicability of SSC classifications, and other graded approaches

Lead regulatory review processes and coordinate responses to technical questions from regulatory bodies (CNSC, NRC, DOE)

Ensure all analyses comply with applicable regulatory requirements and guidance

Represent the company in regulatory meetings and technical discussions

Oversee development of technical specifications and operational limits

Manage external consultants and contractors supporting safety analysis activities

Strategic Planning and Communication

Develop long-term safety analysis strategy aligned with company licensing and deployment goals

Collaborate closely with licensing team to support regulatory submissions and licensing strategy

Identify and implement improvements to safety analysis methods and tools

Present safety analysis results and strategies to senior leadership and board of directors

Interface with Engineering Director and executive team on safety-related decisions

Coordinate with other engineering managers to ensure integrated safety approach

Support business development activities with safety analysis expertise

Represent the company at industry conferences and technical forums

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

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

Quality Assurance and Documentation

Ensure comprehensive documentation of safety analysis methodologies, assumptions, and results

Maintain quality assurance program for safety analysis activities

Oversee configuration management of safety analysis models and tools

Ensure compliance with nuclear quality assurance requirements (CSA N286.7, 10 CFR 50 Appendix B, NQA-1, DOE O 414.1D)

Manage internal and external technical reviews of safety analysis work

Requirements

Education

M.Sc. or Ph.D. in Nuclear Engineering, Mechanical Engineering, Chemical Engineering, or 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 (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

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

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), + 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!

Please submit a Resume and Cover Letter.

Candidates must be legally authorized to work in the US 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 Inc. is an equal opportunity employer and does not discriminate on the basis of any legally protected status or group.  We encourage 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]