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Job Title


Senior Radiation Physicist


Company : AtkinsRéalis


Location : Mississauga, Peel Region


Created : 2025-10-17


Job Type : Full Time


Job Description

Join to apply for the Senior Radiation Physicist role at AtkinsRalis 1 month ago Be among the first 25 applicants Join to apply for the Senior Radiation Physicist role at AtkinsRalis Come join us in reshaping the future with AtkinsRalis. AtkinsRalis is dedicated in engineering a better future for our planet and its people. AtkinsRalis / Candu Energy Inc. , is looking for a Senior Radiation Physicist to be a part of our team in the Fuel and Physics department supporting the design of new nuclear power plants and the operation, refurbishment, or waste management and decommissioning of existing CANDU nuclear power plants. Your Role Within The Team Lead, plan, perform, document, review, and/or verify technical analyses that includes the use of radiation transport codes, performing dose calculations, and/or application / development of activity transport models. Produce high quality reports effectively summarizing technical information and present results to internal and/or external stakeholders. Attend and participate in meetings as needed. Collate, assimilate, and summarize results from existing analyses. Follow the relevant procedures, guidelines and standards governing the work being performed, and continually improve skills through instructor-led courses and/or on-the-job training. Develop, adapt, or modify computer codes for specific applications and to solve new problems. Why choose AtkinsRalis as an employer? Because We Offer The opportunity to work on various major projects for internal and external clients. An exciting environment where work-life balance is important. A wide array of learning and development opportunities. Competitive pay, flexible benefits, an employee share plan, and a defined contribution pension plan. A work environment focused on health and safety. The Ideal Candidate Masters degree or equivalent in Nuclear Engineering or Physics with 10-15 years of relevant experience. 8+ years of experience with radiation transport, performing dose calculations, activity transport, shielding applications, waste management, radioactivity dispersion. Experience with the computer codes MCNP, SCALE/ORIGEN, or ADDAM (equivalent codes acceptable, ability to program especially in python, PERL, MATLAB, C++, or Fortran and proficient in Microsoft Office. Familiarity with the Linux operating system. Ability to present technical material as well as develop and deliver training effectively. Working knowledge of work processes, and associated technologies. Eligible to obtain license for nuclear software that falls under the US Department of Energy 10 CFR Part 810 radiation physics codes, such as MCNP and SCALE. Experience with rehabilitation and decommissioning activities and supporting station operations. Experience working at a nuclear facility, performing radiation transport and shielding calculations, and code development including source control and testing. Knowledge of the nuclear regulatory framework, along with codes and standards applicable for nuclear work in Canada. Are you up for this challenge? Apply today and join our team to help engineer a Better Future for our Planet and its People. About AtkinsRalis At AtkinsRalis, we seek to hire individuals with diverse characteristics, backgrounds, and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion, or disability, but enriches itself through these differences. AtkinsRalis cares about your privacy. AtkinsRalis and other subsidiary or affiliated companies of AtkinsRalis (referred to throughout as AtkinsRalis) are committed to protecting your privacy. Please consult our Privacy Notice on our Careers site to know more about how we collect, use, and transfer your Personal Data. By submitting your personal information to AtkinsRalis, you confirm that you have read and accept our Privacy Notice. Appropriate accommodations will be provided upon request throughout the recruitment and hiring process as required by Company policy and the Accessibility for Ontarians with Disabilities Act (AODA). Successful applicants will be notified about AtkinsRalis accommodation policies at the time the employment offer is extended, and the information will be shared with new personnel during the onboarding process. Seniority level Seniority level Mid-Senior level Employment type Employment type Full-time Job function Job function Research, Analyst, and Information Technology Referrals increase your chances of interviewing at AtkinsRalis by 2x Sign in to set job alerts for Senior Physicist roles. 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