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Posted 3 months ago

Junior Reactor Physicist

@ AtkinsRéalis

Mississauga, Ontario

Full-time
Apply now
SIGNALS

Overview

AtkinsRéalis is hiring a Junior Reactor Physicist on its Reactor Core Physics team to support CANDU reactor design and the safe operation of existing plants. The role involves reactor physics analyses, running and preparing reactor physics codes, and documenting and presenting results. The posting states a full-time, regular position with a hybrid working culture and generous time-off policies.

Responsibilities:

  • Perform reactor physics analyses for design, operation and safety
  • Prepare inputs and run reactor physics computer codes
  • Collate and evaluate results from multiple studies
  • Document work in technical notes and reports
  • Develop and modify FORTRAN programs

Requirements summary:

  • Honours degree in Physics or Nuclear Engineering
  • Reactor physics experience a strong asset
  • Proficiency in FORTRAN programming
  • Experience with Linux and Windows an asset
  • Effective technical writing and presentation skills

Tools & skills

Source and dates

Employer career site / ATS feed · workday

Employer posting date
2026-08-12
First seen by our source
2026-10-08
Source record updated
2026-10-16

These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.

Job details

SeniorityEntry level
DepartmentResearch & science
Hours per week40 (estimated)
Work settingOffice
PositionMostly sitting
Physical demandsphysical low · computer high
LanguagesEnglish
EducationBachelor’s degree (required)
Fields of studyPhysics, Nuclear Engineering
Perks mentionedFlexible hours, Wellness, Paid training

Summary and details written by AI from the posting; the employer’s posting is the authority.

AtkinsRéalis

Saved company profile

Historical company information from a saved The Jobs API profile (LinkedIn/Crunchbase fields). It is not live-verified; figures may have changed. Missing values remain unknown.

Full company description

We are 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. ---

LinkedIn followers
522,517
People associated on LinkedIn
46,698
Reported office locations
  • 455 René-Lévesque Blvd W, Montreal, QC H2Z 1Z3, CA
Business categories
  • Construction
  • Innovation Management
  • Mining
  • Infrastructure
  • Transportation
  • Energy
  • Civil Engineering
Other recorded names
  • AtkinsRéalis
Profile identifies a recruitment agency
No
Reported total investment
1,128,343,771

Currency and observation date were not supplied; this is not a current valuation or a funding round.

We are 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. ---

FieldValue
IndustryEngineering Services
Company size10,001+ employees
HeadquartersMontreal, QC
Organization typePublic Company
Open jobs on Jobsy123
LinkedInView page
Job description

Job Description

##Overview

Join 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.

##Your Role

  • Perform reactor physics analyses to support reactor design, operation, and safety activities.
  • Prepare input data and execute reactor physics computer codes for assigned analyses.
  • Collate and evaluate results from multiple technical studies.
  • Document analytical work in technical notes and reports.
  • Present technical findings and recommendations at meetings.
  • Develop, adapt, and modify FORTRAN-based computer programs for specialized applications.
  • Support project delivery while maintaining quality, budget, and schedule requirements.

##About You

  • A 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.
  • Proficiency in reactor physics, Physics, Nuclear Engineering, or a related discipline.
  • Proficiency in computer environments, with experience using Linux and Windows systems considered an asset.
  • Proficiency in computer programming, particularly FORTRAN.
  • Ability to communicate effectively through technical writing and presentations.
  • Ability to work collaboratively, manage changing priorities, and demonstrate initiative in a team environment.

##Rewards & Benefits

Explore the rewards and benefits that help you thrive – at every stage of your life and your career at AtkinsRéalis in Canada.
Enjoy competitive compensation, employee recognition, and a brilliant range of flexible benefits you can tailor to your health, wellbeing, financial and lifestyle needs.
Make the most of diverse opportunities for training and professional development to grow your skills and expertise.
And take advantage of our hybrid working culture and generous time-off policies to balance a fulfilling career with your personal life.
Be rewarded. Find out more.

##About AtkinsRéalis

We'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.
Find out more.

##Additional Information

AtkinsRéalis 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.
By submitting your personal information to AtkinsRéalis, you confirm that you have read and accept our Privacy Noticeen/site-services/privacy-statement.

Worker Type

Employee

Job Type

Regular

At AtkinsRéalis, 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.

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