Nuclear Safety Analysis Engineer

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 on or before February 2026, after which time it will be a 100% on‑site role.

Terrestrial Energy is a US developer of advanced, Generation‑IV nuclear reactors. We are expanding our workforce to develop and deploy our Integral Molten Salt Reactor (IMSR) small modular nuclear plant, delivering cost‑competitive, clean firm heat and power to industry sectors.

The Company has recently completed a merger, creating a publicly listed operating company (NASDAQ IMSR) möglichkeiten to secure the capital resources for our next growth phase. With 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 a unique opportunity to participate in the company’s growth business plan.

We are building a team of high‑performing business professionals and leaders in engineering, R&D, product management, and business development. We are looking for talented individuals who can help build the organization, processes, and goal‑oriented corporate culture to lead the company in our expansion.

• 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 contribute 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.

The Safety Analysis Engineer, under the direction of the 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.

• 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.
• അഭ 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 and CNSC licensing.
• Develop DOE‑required safety analyses including Preliminary Documented Safety Analysis (PDSA) and Documented Safety Analysis (DSA) in accordance with DOE‑hawk‑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…