Safety Engineer
Thomas Thor - Bellevue, WA
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A leading advanced nuclear technology company is seeking an experienced Senior / Principal Safety Analysis Engineer to join their team on a remote contract basis in the United States.This role will focus on deterministic safety analysis, transient and accident analysis, and reactor system modeling for an advanced non-light water reactor program. The successful candidate will contribute to licensing activities, methodology development, analytical model development, and integration of plant systems within safety analysis platforms.Key ResponsibilitiesDevelop system models and perform safety analyses for Anticipated Operational Occurrences (AOOs), Design Basis Events (DBEs), and Design Basis Accidents (DBAs)Perform transient and accident analysis to support reactor licensing activities and safety documentationContribute to development and assessment of safety methodologies, including code assessment, scaling analysis, verification and validation activitiesSupport development of licensing documentation including FSAR Chapter 15 analysesCollaborate with multidisciplinary engineering teams on reactor SSC functional, safety, and performance requirementsPerform engineering reviews of safety analyses and related design deliverablesDevelop and maintain analytical model documentation and analysis recordsSupport benchmark testing, uncertainty quantification, and sensitivity analysesContribute to implementation of transient and accident analysis capabilities within internal software frameworksRequired ExperienceExtensive experience in nuclear safety analysis and reactor system modelingStrong experience with safety analysis software such as RELAP5, TRACE, TRAC, SAS4A/SASSYS-1, or similar nuclear analysis codesExperience supporting NRC licensing submittals and transient/accident analysesStrong understanding of: thermal hydraulics; reactor dynamics and transient phenomena; reactor core physics and reactivity feedback; instrumentation and control system modelingFamiliarity with Non-Light Water Reactor regulatory guidance and risk-informed methodologiesFamiliarity with EMDAP and Regulatory Guide 1.203 preferredExperience working under NQA-1 quality programsStrong analytical, quantitative, and reporting skillsExperience working within multidisciplinary engineering teamsPreferred BackgroundSodium Fast Reactor (SFR) safety analysis experience highly desirableExperience with advanced reactors or Gen IV technologiesSoftware engineering/programming experience in Python, Fortran, or C++ is considered beneficialQualificationsS., M.S., or Ph.D. in Nuclear Engineering or a related engineering disciplineMinimum 5-10+ years of relevant nuclear industry experience depending on education level
Created: 2026-05-09