ISA Nuclear Safety Engineer - MOX Fuel Facility
About this role
Position Summary
The ISA Nuclear Safety experienced engineer will support the design and development of a next-generation MOX fuel fabrication facility in the United States. This role will apply risk-informed methodologies in accordance with 10 CFR Part 70 to support nuclear safety analysis and licensing activities.
The position plays a key role in the safety organization, acting as a technical interface between U.S. engineering teams and expert support teams based in France with extensive MOX fuel cycle experience. The engineer will contribute to the implementation of ISA (Integrated Safety Analysis) methodology, including identification of accident sequences, determination of credible initiating events, and specification of Items Relied On For Safety (IROFS).
This role supports nuclear safety documentation required for regulatory engagement (pre-application interactions, construction authorization requests) and ensures safety requirements are embedded throughout the system design lifecycle.
The project is part of a broader advanced nuclear fuel cycle strategy, including the multi-recycling of plutonium from used nuclear fuel to improve resource efficiency and sustainability.
Key Responsibilities
- Perform nuclear safety evaluations and risk assessments using an Integrated Safety Analysis (ISA) methodology in accordance with 10 CFR Part 70.
- Identify and analyze accident sequences, credible initiating events, and develop Items Relied On for Safety (IROFS).
- Support the development, implementation, and maintenance of risk-informed nuclear safety methodologies aligned with NRC expectations.
- Contribute to the preparation of ISA-based training materials and provide guidance to engineering teams on nuclear safety principles.
- Ensure compliance with applicable NRC regulations, DOE requirements (where applicable), and internal nuclear safety standards.
- Define, interpret, and translate nuclear safety requirements into engineering design constraints and system requirements.
- Interface with multidisciplinary safety specialists, including fire protection, human factors engineering, and criticality safety teams.
- Ensure nuclear safety requirements are properly communicated, integrated, and verified across engineering disciplines.
- Contribute to nuclear safety case development and licensing documentation, including Preliminary Safety Analysis Reports (PSAR) and Construction Authorization applications.
- Participate in design reviews, safety reviews, and multidisciplinary technical coordination meetings.
- Review and assess safety analyses developed internally or by subcontractors for compliance and technical adequacy.
- Track implementation of nuclear safety requirements throughout design evolution and configuration changes.
- Provide technical input and periodic reporting to Nuclear Safety leadership.
Required Qualifications
• Bachelor’s or Master’s degree in Engineering (Nuclear,Safety Engineering, or related discipline).
• 10+ years of engineering experience in nuclear or other high-hazard regulated industries.
• Strong understanding of nuclear safety principles and risk-informed analysis methodologies.
• Experience contributing to nuclear safety cases or licensing documentation.
• Ability to work in multidisciplinary and international engineering environments.
• Strong technical writing and Microsoft Office skills (Excel, Word, PowerPoint).
• Professional proficiency in English.
Preferred Qualifications
• Experience in nuclear fuel cycle facilities, MOX fuel fabrication or regulated nuclear installations.
• Knowledge of ISA methodology, fire safety analysis, human factors, or criticality safety.
• Experience applying risk-informed approaches in U.S. nuclear regulatory environments (NRC, DOE).
• Experience in international engineering projects involving U.S. stakeholders.
• Familiarity with fire analysis or fire protection engineering is an advantage.
What We Offer
• Comprehensive benefits package, including medical, dental, and vision coverage for employees and dependents, as well as a 401(k) plan with 4% company match.
• Generous paid time off, starting at 20 days per year and increasing to 25 days after 3 years of service.
• A mission-driven environment focused on delivering scalable, low-carbon energy solutions to meet growing global energy demand.
• A collaborative and international culture that values technical excellence, transparency, innovation, and cross-functional teamwork.
Company at a glance
Since launching in 2021 newcleo has quickly established itself as innovator in the field of nuclear energy. newcleo is working to design, build, and operate Gen-IV Advanced Modular Reactors (AMRs) that are cooled by liquid lead and fuelled by reprocessed nuclear waste.
Through an innovative combination of existing and proven technologies, and by reviving a nuclear industry model based on the manufacture and multi-recycling of Mixed Oxide fuel, newcleo aims to close the nuclear fuel cycle while safely producing clean, affordable, and practically inexhaustible energy required for low carbon economies.
With a EUR 70m group turnover in 2024, EUR 645m of private funding and over 100 partnerships and collaborations across the nuclear industry, the growth of the newcleo group is supported through the targeted acquisition of key companies with strong capabilities in nuclear engineering, manufacturing, and waste management.
Through its workforce of over 900 highly qualified employees across France, the U.S., the UK, Italy, Switzerland and Slovakia, newcleo is not only developing and delivering the skills and services required for the group’s own ambitious project timelines, but also supporting the development of Small Modular Reactor supply chains in Europe and beyond.
Top Benefits
- Medical Coverage
- Dental Coverage
- Vision Coverage
- 401(k) Plan
- 4% Company Match
- Paid Time Off
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