Senior Reactor Physicist

Snc-Lavalin; Mississauga; Hybrid; CAD 120,000 - 160,000; Full time

Job summary

AtkinsRéalis Canada is seeking a Senior Reactor Physicist to support the design of new CANDU nuclear power plants and the safety of existing plants. You will perform and supervise reactor physics calculations, develop methods, and coordinate with multidisciplinary teams.

The role requires a Master’s in Nuclear Engineering, 10–15 years' experience, and proficiency in FORTRAN and reactor codes. Strong communication, budgeting, and QA commitment are essential.

Qualifications

• Master’s degree 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 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.

Responsibilities

• Perform and/or supervise finite-reactor-core calculations.
• Prepare inputs, run reactor physics computer codes and develop methodologies.
• Develop FORTRAN codes and modify existing ones as required.
• Document analyses in technical notes and reports and present results at meetings.
• Lead work and liaise with a multidisciplinary analysis team.
• Interface with clients and projects to assess reactor physics issues and propose solutions.

Skills

WIMS

DRAGON

RFSP

MCNP

DONJON

KENO

FORTRAN

Linux

Windows

Communication

Teamwork

Budgeting

Education

Master’s degree in Nuclear Engineering

Job description

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

AtkinsRéalis, 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. 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.

Privacy & Accommodation

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EEO & Diversity

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. Created by the integration of long-standing organizations dating back to 1911, AtkinsRéalis is a world‑class engineering services and nuclear company dedicated to engineering a better future for our planet and its people. We create sustainable solutions that connect people, data and technology to transform the world's infrastructure and energy systems. We deploy global capabilities locally to our clients and deliver unique end‑to‑end services across the whole life cycle of an asset including consulting, advisory & environmental services, intelligent networks & cybersecurity, design & engineering, procurement, project & construction management, operations & maintenance, decommissioning and capital. The breadth and depth of our capabilities are delivered to clients in strategic sectors such as Engineering Services, Nuclear and Capital. News and information are available at Atkinsrealis or follow us on LinkedIn.