Nuclear Safety Analysis Engineer

Nuclear Safety Analysis Engineer

KEY RESPONSIBILITIES

  • Perform deterministic (DBA/BDBA) and/or probabilistic (PSA/PRA) safety analyses for the assessment of reactor systems and safety functions.
  • Contribute to safety analyses covering normal operating conditions, transient conditions, Design Basis Accidents (DBA), and Beyond Design Basis Accidents (BDBA)/Design Extension Conditions (DEC).
  • Perform or support analysis and modeling activities to assess the thermal-hydraulic behavior of reactor systems.
  • Perform or support system thermal-hydraulic, accident, and/or severe accident analyses using nuclear safety analysis codes.
  • Perform or support model development, analysis, quantification, and results evaluation for Level 1, Level 2, and, where applicable, Level 3 PSA/PRA studies.
  • Evaluate results obtained from DBA/BDBA and thermal-hydraulic analyses and establish their linkage with the relevant PSA/PRA risk models.
  • Contribute to event tree, fault tree, dependency, human reliability, and risk quantification activities.
  • Perform or support analyses related to core damage, fuel damage, radioactive material release, and containment integrity.
  • Technically evaluate PSA results and correlate analysis findings with design features, safety functions, safety requirements, and regulatory criteria.
  • Contribute to the development, verification, validation, updating, and quality control of analysis models, as well as the technical evaluation of analysis results.
  • Prepare technical analysis reports, calculation documents, model documentation, and safety assessment documents.
  • Coordinate with multidisciplinary engineering teams and effectively communicate analysis results to relevant design and nuclear safety activities.

REQUIRED QUALIFICATIONS

  • Professional experience in at least one of the following areas within the nuclear industry: PSA/PRA, DBA/BDBA, deterministic safety analysis, or nuclear thermal-hydraulics.
  • Working knowledge of the systems, safety features, and thermal-hydraulic behavior of LWR/PWR reactors.
  • Hands-on experience in at least one of the following areas:
    • PSA/PRA modeling and quantification
    • DBA/BDBA and accident analysis
    • System thermal-hydraulic analysis
    • Severe accident analysis
  • Knowledge of event tree analysis, fault tree analysis, dependency modeling, human reliability analysis (HRA), and risk quantification within PSA/PRA studies.
  • Knowledge of accident scenarios, transient behavior, system response, and safety acceptance criteria within deterministic safety analysis.
  • Experience with at least one of the following PSA/PRA tools:
    • CAFTA
    • SAPHIRE
    • RiskSpectrum
    • Or equivalent PSA/PRA software
  • Experience with at least one of the following nuclear safety analysis codes:
    • RELAP5-3D
    • TRACE
    • MELCOR
    • Or equivalent thermal-hydraulic/severe accident analysis codes
  • Working knowledge of ASME/ANS PRA Standards and relevant NRC and/or IAEA safety analysis and risk assessment documents.
  • Strong written communication skills, with the ability to prepare technical reports and analysis documentation.
  • Sufficient English proficiency to read, understand, interpret, and work with technical documents.
  • Strong analytical and problem-solving skills.
  • Ability to work effectively within multidisciplinary engineering teams.

PREFERRED QUALIFICATIONS

  • Experience in PSA/PRA and/or DBA/BDBA for PWR, SMR, or similar nuclear reactor designs.
  • Experience in the interaction and integration between PSA/PRA and deterministic safety analyses.
  • Experience in Level 1, Level 2, and/or Level 3 PSA studies.
  • Experience working on accident scenarios such as LOCA, MSLB, SGTR, FWLB, and similar DBA/BDBA scenarios.
  • Experience with RELAP5-3D, TRACE, CATHARE, or equivalent codes for thermal-hydraulic analyses.
  • Experience with MELCOR or equivalent codes for severe accident analyses.
  • Experience in PSA model development, model maintenance/updating, and model quality assurance/quality control processes.
  • Familiarity with risk-informed categorization/classification activities under 10 CFR 50.69.
  • Experience working with ASME/ANS PRA Standards, NRC Regulatory Guides, Standard Review Plans (SRPs), and relevant NUREG documents.
  • Experience with Python, MATLAB, or similar tools for data analysis, automation, or processing PSA/analysis results.
  • Experience in the safety assessment of SMR designs.
  • Strong attention to accuracy, consistency, and traceability of analysis results.
  • Ability to monitor regulatory requirements and technical standards and incorporate them into analysis activities.
  • Ability to plan, prioritize, and track multiple technical activities and projects simultaneously.
  • Ability to adapt quickly to changing design and project requirements.
  • Proactive, entrepreneurial, and results-oriented approach to work.