Senior Reactor Physicist

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📍 CA.ON.Mississauga.2251 Speakman DriveFull time

About this role

Job Description

Overview

Candu Energy Inc. is looking for a Senior Reactor Physicist to be a part of our team in the Reactor Core Physics to support the design of new CANDU nuclear power plants as well as supporting the operation and safety of the existing domestic and international CANDU plants.

Your role:

  • Perform and/or supervise the following calculations: Finite-reactor-core calculations, Kinetics calculations, Advanced-fuel-cycle calculations, Monte Carlo calculations.
  • Prepare inputs, run reactor physics computer codes Develop, adapt and modify FORTRAN computer codes as required for specific applications (e.g., to implement new methods or perform new types of calculations)
  • Develop methodologies and perform reactor physics analyses to support design and commercial activities
  • Document analysis in technical notes and reports, and present results at meetings Interface with other groups/projects as required
  • Review technical documents Supervise junior staff
  • Estimate, monitor schedules and assign work to meet completion dates Interface with clients and projects to assess reactor physics related issues confronting their projects/stations and advising on potential solutions
  • Prepare and/or review work proposals for internal and external clients
  • Perform varied work assignments effectively and respond quickly to changing project needs
  • Establish required resources for client work
  • Propose/develop approaches to be used on reactor physics tasks
  • Develop analysis basis plans
  • Lead work and liaise with a multidisciplinary analysis team including project management
     

About you:

  • Master’s degree or equivalent in Nuclear Engineering from a university of recognized standing
  • A minimum of 10 to 15 years of relevant experience or combination of experience and advanced education
  • Extensive experience with reactor physics codes WIMS, DRAGON, RFSP and MCNP Experience with DONJON and KENO computer codes.
  • Must be conversant with computer environments; proficiency in both Linux and WINDOWS environments is a strong asset
  • Proficiency in computer programming, especially FORTRAN, is very desirable
  • Excellent oral and written communication skills are required
  • Ability to work well under pressure and be flexible, i.e., must be able to perform varied work assignments effectively and respond quickly to changing project needs
  • Strong problem-solving skills are essential
  • Ability to show initiative while working in a team environment
  • Ability to work to budget and schedule
  • Full commitment to working in a formal QA environment.

Reward & 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 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 Notice.

Appropriate accommodation 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 AtkinsRéalis’ accommodation policies at the time the employment offer is extended, and the information will be shared with new personnel during the onboarding process.

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.  

Frequently Asked Questions

Is the salary disclosed for the Senior Reactor Physicist position at slihrms?
The salary for this Senior Reactor Physicist role at slihrms is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Senior Reactor Physicist position at slihrms located?
This Senior Reactor Physicist role at slihrms is based in CA.ON.Mississauga.2251 Speakman Drive. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Is the Senior Reactor Physicist role at slihrms full-time or part-time?
This is listed as a Full time position. It is posted as a Senior Reactor Physicist role at slihrms.
How do I apply for the Senior Reactor Physicist position at slihrms?
Click the "Apply Now" button on this page. You will be redirected to slihrms's official application portal hosted on workday where you can submit your application directly.
When was the Senior Reactor Physicist job at slihrms posted?
This Senior Reactor Physicist position at slihrms was posted on Sep 10, 2026. Apply as soon as possible — early applications are often reviewed first.
Senior Reactor Physicist
slihrms
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