Remote - Principal Seismic Probabilistic Risk Assessment Engineer

Talascend is currently seeking a Principal Seismic Probabilistic Risk Assessment Engineer for a remote, long-term contract opportunity.

OVERVIEW:

The Principal Seismic Probabilistic Risk Assessment (SPRA) Engineer reports directly to the Integrated Plant and Structures (IPS) Seismic Integration Manager. The role involves working as part of the Natrium Seismic Integration Team, providing oversight to the Risk Assessment team, and being responsible for the SPRA and severe accident analysis for the Natrium reactor design. The engineer will direct, oversee, and approve SPRA work products, coordinating with the Internal Events PRA team, deterministic safety analysis, fragility, and other engineering disciplines to ensure a reliable and safe plant under a risk-informed, performance-based licensing framework. Additional activities include developing SPRA methodologies and models to support seismic design and licensing, supporting risk integration with design processes, evaluating seismic-induced fire and flood sequences, participating in hazard analysis groups and PIRT exercises, and supporting SSC classification, LBE selection, and DID evaluations. Effective communication skills and collaboration across engineering disciplines are essential. This position requires knowledge of SPRA principles, familiarity with the ASME/ANS PRA standard, and the Licensing Modernization Project (LMP). Experience with sodium fast reactor technology is preferred but can be acquired through training and interaction with client staff.

PRIMARY RESPONSIBILITIES:

Manage SPRA work performed by vendors in coordination with risk assessment teams and other engineering disciplines. Ensure SPRA supports plant design and licensing within regulatory requirements and standards such as RG 1.233, NEI 18-04, and ASME/ANS standards. Develop planning and schedules for SPRA activities. Provide technical guidance on reliability and SPRA topics. Participate in peer reviews of SPRA. Review event and fault trees for frequency and consequence analysis under LMP. Support development of seismic accident sequences. Collaborate with interdisciplinary teams to establish SSC requirements and support overall design. Document model development and analysis results. Review analyses and engineering design media. Perform risk integration and report risk metrics. Conduct focused PRA analyses for trade studies. Perform hand calculations to validate complex models. Prepare reports for customers and regulators. Deliver presentations to management, customers, and regulators.

POSITION REQUIREMENTS:

B.S., M.S., or PhD in nuclear, mechanical, electrical, aerospace engineering, or similar. Minimum of 15 years of experience in Probabilistic Risk Assessment. Deep knowledge of PRA principles and ASME/ANS PRA standards. Experience with risk-informed, performance-based regulations such as NEI 18-04 or 10 CFR 50.69. Expertise in PRA fundamentals including data analysis, human reliability, accident analysis, severe accidents, and source terms. Experience with PRA software like FRANX, CAFTA, SAPHIRE, Risk Spectrum, or similar. Experience with assessment codes like GOTHIC, MELCOR, RADTRAD is a plus. Strong technical writing and communication skills. Experience with sodium-cooled or advanced reactors is preferred. Fluent in English, both spoken and written. Broad understanding of engineering disciplines in nuclear plant design. High integrity, open communication, respect, and teamwork. We thank all applicants for their interest. Only qualified individuals will be contacted. Additional duties may be assigned as needed. Background check and drug screening may be required. Salary is not guaranteed and may vary based on experience and location. Talascend offers benefits including health and disability insurance, 401(k), EAP, paid time off, and holidays, depending on hire date and site requirements. Talascend is an Equal Opportunity Employer committed to diversity and inclusion. #J-18808-Ljbffr Talascend, LLC