Safety and Criticality Engineer DATS is partnering with a world-leading nuclear and energy organisation to recruit a Safety and Criticality Engineer. This is a varied and rewarding role, supporting projects to meet the highest safety and licensing standards. Key Responsibilities: * Perform design safety analysis (chemotoxic, criticality, nuclear hazards). * Conduct HAZOP/HAZAN/HAZID studies and follow-up analyses. * Produce criticality safety assessments and dose calculations. * Review and contribute to licence submissions and safety documentation. * Respond to technical and safety queries, optimise safety systems. About You: * Degree in a relevant scientific or engineering discipline. * 5+ years’ experience in safety analysis, ideally criticality-focused. * Experience with MONK (criticality) and MCNP (dose calculations). * Confident communicator, organised, and able to manage projects. * Willing to travel and work flexibly; knowledge of French or German an advantage. * Eligible for or holding DV Security Clearance. Benefits: * Company bonus, 25–28 days’ holiday * Private healthcare, hybrid working, flexi day-off scheme * Pension scheme, life assurance, company sick pay If you are an experienced Safety and Criticality Engineer seeking a role with innovation, collaboration, and career growth, we’d love to hear from you