The Probabilistic Safety Analysis (PSA) Engineer III supports Holtec’s advanced reactor development by leading probabilistic safety analysis (PSA) efforts for the SMR‑300 program. This role is part of a multidisciplinary engineering team responsible for risk‑informed design, safety analysis, and licensing of next‑generation nuclear technology. The position requires deep technical expertise in PSA and thermal‑hydraulic modeling, along with the ability to translate complex risk insights into actionable design improvements within a fast‑paced, highly regulated environment.Location:Madrid, Spain (on-site)Primary Responsibilities:Lead development of PSA models and supporting thermal‑hydraulic analyses for risk‑informed design and licensingDevelop Level 1 and Level 2 PRA models for internal and external events across full power and shutdown conditionsPerform thermal‑hydraulic modeling (RELAP5‑3 D, MELCOR) to simulate core and containment response in severe accident scenariosDevelop and quant...