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Deep Fission is a publicly-traded nuclear technology company developing a revolutionary deep borehole pressurized water reactor. The company recently completed private placement financing and an Alternative Public Offering, and is now executing its next phase of growth with active engagement with the U.S. Nuclear Regulatory Commission (NRC) and Department of Energy (DOE).
We are seeking a Nuclear Safety Analysis Engineer to support the design, development, and safety analysis of our Gravity Nuclear Reactor. This role is part of the Nuclear Safety Analysis organization and works closely with licensing, reactor design, and health physics teams as the company advances toward pilot deployment and commercial licensing.
Key responsibilities include performing and documenting accident analyses, including design basis accident (DBA) and beyond-design-basis event evaluations to support the reactor's safety case. You will develop and apply nuclear safety analysis methods and codes to evaluate reactivity control, core response, and system behavior under off-normal conditions. You will evaluate radiological consequences of accident scenarios in coordination with health physics, incorporating dose assessment inputs into safety documentation, and contribute to probabilistic and deterministic safety analyses supporting design decisions and regulatory submittals.
You will support development of safety analysis reports (SAR/PSAR), technical specifications, and licensing basis documentation. You will prepare licensing submittals and responses to NRC and DOE requests for additional information related to safety analysis. You will interpret regulatory requirements (e.g., 10 CFR Part 50/52) and translate them into safety analysis inputs and design recommendations, while maintaining traceability between safety analysis assumptions, design inputs, and licensing commitments.
You will coordinate with reactor design, health physics, and licensing teams to ensure safety analysis assumptions remain consistent with evolving design. You will also coordinate with external consultants and national laboratory partners on safety analysis methodology and validation work, and promote a proactive nuclear safety culture across engineering, licensing, and field-based activities.
