AtkinsRéalis in Mississauga, ON, is seeking a senior Materials, Metallurgical and Welding Engineer to lead engineering activities across manufacturing, refurbishment, and current build programs, with emphasis on nuclear and other regulated environments. The role requires deep expertise in welding processes, metallurgy, and codes, plus the ability to mentor multidisciplinary teams, resolve non-conformances, and deliver solutions that meet project budgets, schedules, and QA requirements.