R&D Salt Qualification Scientist​/Engineer

About the Role

Interested in helping us transform thermal and electric energy? Become a part of the leading Generation-IV nuclear plant development team.

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 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:

Under the direction of the R&D Director, the Salt Qualification Scientist/Engineer is primarily responsible for leading the experimental testing and qualification of salts for Integral Molten Salt Reactor (IMSR) applications. This role focuses on designing and implementing rigorous test programs, conducting hands‑on laboratory experiments, and performing detailed data analysis to characterize the properties and behavior of salts used in the reactor.

The position requires strong experimental and materials testing expertise combined with hands‑on laboratory experience, and the ability to prepare technical documentation to support reactor licensing and operational needs.

• Design and implement experimental programs to characterize molten salt properties for IMSR applications, with a focus on material testing, chemical analysis, and long‑term performance under reactor conditions.
• Develop and execute test procedures for thermophysical, chemical, and performance measurements that meet reactor specifications and provide reliable data for reactor qualification.
• Conduct laboratory experiments to measure critical salt properties, including thermal stability, chemical reactivity, corrosion resistance, and long‑term performance. Operate experimental equipment and ensure compliance with safety standards.
• Analyze experimental data using statistical tools (e.g., JMP, MATLAB, Python), including uncertainty quantification, regression analysis, and data validation. Develop models and correlations to support salt qualification and performance predictions.
• Oversee quality control for all testing activities, ensuring proper documentation, traceability, and compliance with regulatory requirements (e.g., NRC, DOE). Maintain laboratory safety standards in line with Good Laboratory Practices (GLP).
• Prepare technical reports and qualification documents to support regulatory submissions, including responses to NRC inquiries. Present findings to regulatory bodies during audits and meetings.
• Work closely with reactor…