TerraPower
Principal Engineer – Seismic/CSA Integration & Oversight
TerraPower, Bellevue, Washington, us, 98009
Principal Engineer – Seismic/CSA Integration & Oversight
Location: Bellevue, WA, USA
TerraPower® is a nuclear energy technology company committed to developing safe, affordable and sustainable energy solutions. This role focuses on leading seismic and code safety integration for advanced nuclear reactor projects, supporting plant design, licensing and performance analysis.
Responsibilities
Provide continuous oversight of seismic design scope, covering building, structural systems, foundations, equipment supports, and integrated plant analyses such as soil‑structure interaction (SSI), seismic fragility development, and probabilistic risk assessment (PRA) inputs.
Coordinate and direct complex multi‑system analyses, including SSI studies, seismic model development, external hazard characterization, and building seismic qualification, ensuring consistency with plant‑level methodologies and licensing strategy.
Perform and guide SSI analyses using in‑house SASSI tools; establish repeatable frameworks, workflows, and benchmarks that improve analysis efficiency and traceability across multiple structures.
Develop, document, and implement seismic design bases and strategies, supporting both deterministic and probabilistic methods; apply risk‑informed, performance‑based methodologies (e.g., LMP, RIPB) to define design acceptance criteria for structural components.
Author, review, and refine plant‑ and system‑level requirements and specifications, integrating seismic and structural criteria into design deliverables and ensuring seamless alignment with plant‑level engineering.
Interface across design disciplines (mechanical, I&C, nuclear safety, systems) to ensure seismic requirements, structural criteria, and performance expectations are clearly defined, properly allocated, and implemented across interfacing designs.
Ensure adherence to licensing and code requirements (ASCE, ACI, AISC, ASCE 4/7/43, NUREG guidance), verifying they are correctly integrated into CSA products and aligned with TerraPower’s licensing strategy.
Support cost studies and trade‑off evaluations as the CSA/seismic SME, ensuring technical rigor while balancing constructability, schedule, and economic considerations.
Surveil subcontractor performance, monitoring design deliverables, verifying compliance with technical requirements, and ensuring design processes and quality programs are properly implemented.
Lead and support design and integration reviews, chairing cross‑functional resolution sessions for CSA/seismic challenges, and facilitating targeted technical forums (e.g., working groups, decision boards, digital/in‑person reviews).
Integrate seismic and CSA design information into licensing products, including regulatory submittals under the Licensing Modernization Project (LMP), ensuring design‑basis alignment with licensing commitments.
Report emerging technical risks to project and engineering management, providing timely recommendations for mitigation and escalation when needed.
Drive continuous improvement, applying nuclear industry best practices to seismic modeling, fragility methods, and structural qualification, while identifying opportunities for improved efficiency, quality, and integration.
Key Qualifications & Skills
M.S. degree in Civil Engineering or equivalent; 12+ years of civil/structural design and analysis and/or probabilistic risk assessment experience.
Extensive experience in seismic design and analysis, soil‑structure interaction (SSI) analysis, and seismic fragility evaluations.
Strong analytical and problem‑solving skills; ability to work independently and coordinate with internal and external engineering teams.
Experience with new nuclear power plant design projects and nuclear codes/standards (e.g., ASCE 4/7, ACI 318, AISC 360, ACI 349, NUREG guidance).
Proficient in design review, documentation, and integration of seismic and structural criteria into licensing products.
Excellent written and verbal communication skills; ability to deliver presentations and technical reports to management and stakeholders.
Experience with probabilistic, performance‑based methodologies for seismic design and analyses (e.g., LMP, RIPB).
Knowledge of regulatory requirements for licensing and safety (DOE, NRC, DOE‑DOE, AEC).
Commitment to safety, quality, and continuous improvement in engineering design and development.
Job Functions The role requires coordination of seismic design, code compliance, and licensing integration across multiple engineering disciplines. Key functions involve design oversight, analysis coordination, documentation, and technical review to meet nuclear safety and licensing requirements.
Benefits
Competitive Compensation and discretionary short‑term incentive payments.
Comprehensive Medical and Wellness Benefits (medical, vision, dental, life, disability).
Gender affirmation benefits, parental leave, 401(k) plan, and generous paid time off.
10 paid holidays, 21 days of annual PTO, and holiday scheduling.
Relocation assistance and professional development opportunities.
Flexible work schedule and hybrid work options.
TerraPower is an Equal Opportunity Employer. TerraPower does not discriminate … (full EEO statement included). Oce.
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TerraPower® is a nuclear energy technology company committed to developing safe, affordable and sustainable energy solutions. This role focuses on leading seismic and code safety integration for advanced nuclear reactor projects, supporting plant design, licensing and performance analysis.
Responsibilities
Provide continuous oversight of seismic design scope, covering building, structural systems, foundations, equipment supports, and integrated plant analyses such as soil‑structure interaction (SSI), seismic fragility development, and probabilistic risk assessment (PRA) inputs.
Coordinate and direct complex multi‑system analyses, including SSI studies, seismic model development, external hazard characterization, and building seismic qualification, ensuring consistency with plant‑level methodologies and licensing strategy.
Perform and guide SSI analyses using in‑house SASSI tools; establish repeatable frameworks, workflows, and benchmarks that improve analysis efficiency and traceability across multiple structures.
Develop, document, and implement seismic design bases and strategies, supporting both deterministic and probabilistic methods; apply risk‑informed, performance‑based methodologies (e.g., LMP, RIPB) to define design acceptance criteria for structural components.
Author, review, and refine plant‑ and system‑level requirements and specifications, integrating seismic and structural criteria into design deliverables and ensuring seamless alignment with plant‑level engineering.
Interface across design disciplines (mechanical, I&C, nuclear safety, systems) to ensure seismic requirements, structural criteria, and performance expectations are clearly defined, properly allocated, and implemented across interfacing designs.
Ensure adherence to licensing and code requirements (ASCE, ACI, AISC, ASCE 4/7/43, NUREG guidance), verifying they are correctly integrated into CSA products and aligned with TerraPower’s licensing strategy.
Support cost studies and trade‑off evaluations as the CSA/seismic SME, ensuring technical rigor while balancing constructability, schedule, and economic considerations.
Surveil subcontractor performance, monitoring design deliverables, verifying compliance with technical requirements, and ensuring design processes and quality programs are properly implemented.
Lead and support design and integration reviews, chairing cross‑functional resolution sessions for CSA/seismic challenges, and facilitating targeted technical forums (e.g., working groups, decision boards, digital/in‑person reviews).
Integrate seismic and CSA design information into licensing products, including regulatory submittals under the Licensing Modernization Project (LMP), ensuring design‑basis alignment with licensing commitments.
Report emerging technical risks to project and engineering management, providing timely recommendations for mitigation and escalation when needed.
Drive continuous improvement, applying nuclear industry best practices to seismic modeling, fragility methods, and structural qualification, while identifying opportunities for improved efficiency, quality, and integration.
Key Qualifications & Skills
M.S. degree in Civil Engineering or equivalent; 12+ years of civil/structural design and analysis and/or probabilistic risk assessment experience.
Extensive experience in seismic design and analysis, soil‑structure interaction (SSI) analysis, and seismic fragility evaluations.
Strong analytical and problem‑solving skills; ability to work independently and coordinate with internal and external engineering teams.
Experience with new nuclear power plant design projects and nuclear codes/standards (e.g., ASCE 4/7, ACI 318, AISC 360, ACI 349, NUREG guidance).
Proficient in design review, documentation, and integration of seismic and structural criteria into licensing products.
Excellent written and verbal communication skills; ability to deliver presentations and technical reports to management and stakeholders.
Experience with probabilistic, performance‑based methodologies for seismic design and analyses (e.g., LMP, RIPB).
Knowledge of regulatory requirements for licensing and safety (DOE, NRC, DOE‑DOE, AEC).
Commitment to safety, quality, and continuous improvement in engineering design and development.
Job Functions The role requires coordination of seismic design, code compliance, and licensing integration across multiple engineering disciplines. Key functions involve design oversight, analysis coordination, documentation, and technical review to meet nuclear safety and licensing requirements.
Benefits
Competitive Compensation and discretionary short‑term incentive payments.
Comprehensive Medical and Wellness Benefits (medical, vision, dental, life, disability).
Gender affirmation benefits, parental leave, 401(k) plan, and generous paid time off.
10 paid holidays, 21 days of annual PTO, and holiday scheduling.
Relocation assistance and professional development opportunities.
Flexible work schedule and hybrid work options.
TerraPower is an Equal Opportunity Employer. TerraPower does not discriminate … (full EEO statement included). Oce.
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