{"id":163850,"url":"https://alion.io/job/atkinsrealis-junior-reactor-physicist","title":"Junior Reactor Physicist","company":{"id":8926,"name":"AtkinsRéalis","domain":"atkinsrealis.com","url":"https://alion.io/company/atkinsrealis","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":86,"open_postings":416,"ghost_share":0.002,"stale_share":0.563,"repost_share":0.007,"time_to_fill_p50_days":44,"computed_at":"2026-10-26T05:57:25Z"}},"role":"Energy","role_family":"Energy","seniority":"junior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Mississauga, Canada"],"countries":["CA"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":44000,"max_usd":92000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":99},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Fortran","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-08-13T00:00:00Z","employer_posted_date":"2026-08-13","last_verified_at":"2026-10-24T07:38:40Z","board_verified":false,"closed_at":null,"days_open":74,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":74},"description":"Job Description\n##Overview\nJoin AtkinsRéalis’ Reactor Core Physics team and contribute to the future of nuclear engineering and innovation. As a Junior Reactor Physicist, you will support the design of new CANDU nuclear power plants and the safe operation of existing domestic and international facilities. Working alongside experienced specialists, you will develop technical expertise while contributing to meaningful engineering projects that help shape the energy industry.\n##Your Role\nPerform reactor physics analyses to support reactor design, operation, and safety activities.\nPrepare input data and execute reactor physics computer codes for assigned analyses.\nCollate and evaluate results from multiple technical studies.\nDocument analytical work in technical notes and reports.\nPresent technical findings and recommendations at meetings.\nDevelop, adapt, and modify FORTRAN-based computer programs for specialized applications.\nSupport project delivery while maintaining quality, budget, and schedule requirements.\n##About You\nA Relevant honors degree from a university of recognized standing in Physics or Nuclear Engineering or equivalent; reactor physics experience and/or background is a strong asset.\nProficiency in reactor physics, Physics, Nuclear Engineering, or a related discipline.\nProficiency in computer environments, with experience using Linux and Windows systems considered an asset.\nProficiency in computer programming, particularly FORTRAN.\nAbility to communicate effectively through technical writing and presentations.\nAbility to work collaboratively, manage changing priorities, and demonstrate initiative in a team environment.\n##Rewards & Benefits\nExplore the rewards and benefits that help you thrive - at every stage of your life and your career at AtkinsRéalis in Canada.\nEnjoy competitive compensation, employee recognition, and a brilliant range of flexible benefits you can tailor to your health, wellbeing, financial and lifestyle needs.\nMake the most of diverse opportunities for training and professional development to grow your skills and expertise.\nAnd take advantage of our hybrid working culture and generous time-off policies to balance a fulfilling career with your personal life.\nBe rewarded. Find out more.\n##About AtkinsRéalis\nWe're AtkinsRéalis, a world-class engineering services and nuclear organization. We connect people, data and technology to transform the world's infrastructure and energy systems. Together, with our industry partners and clients, and our global team of consultants, designers, engineers and project managers, we can change the world. We're committed to leading our clients across our various end markets to engineer a better future for our planet and its people.\nFind out more.\n##Additional Information\nAtkinsRéalis cares about your privacy. AtkinsRéalis and other subsidiary or affiliated companies of AtkinsRéalis (referred to throughout as “AtkinsRéalis”) 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.\nBy submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Notice en/site-services/privacy-statement.\nWorker Type\nEmployeeJob Type\nRegularAt AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. 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