Nuclear Safety Analysis Engineer

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Deep Fission

WebsiteLinkedInAll Job Openings

51 - 200 employees

Founded 2023

⚡ Energy

🔧 Hardware

Energy • Hardware

Deep Fission is an advanced nuclear energy company developing a novel deployment architecture called Gravity™ that integrates established technologies — pressurized water reactors, geothermal energy-transfer components, and deep borehole drilling — to place reactor systems a mile underground. The design uses hydrostatic pressure from a deep water column to support operating pressure and cooling, applies geothermal-style surface energy transfer to turbines, and aims for rapid, low-footprint deployments (a stated 6-month target for a single reactor deployment and a 2027–2028 commercial operation goal). The company reports an 18. 5 GW commercial pipeline via letters of intent with power-site partners, has moved prototype hardware (reactor canister) to a Kansas site, and is engaging with regulators and investors through public filings and offerings.

📋 Description

• Perform and document design basis accident and beyond-design-basis event evaluations • Develop and apply nuclear safety analysis methods and codes to evaluate reactivity control, core response, and system behavior under off-normal conditions • Evaluate radiological consequences of accident scenarios with health physics coordination • Contribute to probabilistic and deterministic safety analyses for design decisions and regulatory submittals • Support development of safety analysis reports, technical specifications, and licensing basis documentation • Prepare licensing submittals and responses to NRC and DOE requests for additional information • Interpret 10 CFR Part 50/52 requirements and translate them into safety analysis inputs and design recommendations • Maintain traceability between safety analysis assumptions, design inputs, and licensing commitments • Coordinate with reactor design, health physics, licensing teams, external consultants, and national laboratory partners • Promote a proactive nuclear safety culture across engineering, licensing, and field-based activities

🎯 Requirements

• 7–10 years of relevant nuclear safety analysis or accident analysis experience in a regulated nuclear environment • Hands-on experience performing accident analysis, including design basis accident evaluation • Experience with nuclear safety analysis codes and methods such as MELCOR, RADTRAD, SCALE, ORIGEN, or comparable tools • Bachelor's degree in Nuclear Engineering or a related technical field • Solid understanding of reactor physics and safety analysis principles • Working knowledge of radiological consequence assessment • Strong technical writing skills for clear, defensible regulatory documentation • Must be a U.S. person eligible to meet DOE Export Control requirements under 10 CFR 810 • Ability to work independently in a remote-first, cross-functional environment with senior stakeholders • Willingness to travel domestically approximately 20% • Direct commercial nuclear power plant, SMR, Gen IV, first-of-a-kind reactor, NRC/DOE licensing, nuclear QA, PRA, engineering software, AI-enabled platform, or startup experience desired

🏖️ Benefits

• Remote-first work environment • Domestic travel opportunities for team offsites, training sessions, and site visits • Equal opportunity, diverse, and inclusive workplace