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AtkinsRéalis

Junior I&C Designer

Mississauga, ON, Canada

Job type: Full-time
Apply by: Oct 28, 2026
Posting language: English
Posted: Sep 28, 2026

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Original job description

Overview

AtkinsRéalis provides cutting-edge engineering, procurement, construction and financing solutions to projects in more than 100 countries around the world. From the Canadian Arctic to the Southern African region and Australasia, our multicultural workforce is driven by a fierce pride in their work and a pioneering vision.

AtkinsRéalis is truly a global leader in its field and has been chosen to design and build some of the most prestigious projects in the world.

We have been providing a wide range of services to the nuclear industry in Canada and around the world since for more than 60 years. We are proud to be the steward of Canadian CANDU nuclear technology and to apply our extensive knowledge to service the BWR/PWR market. Our expertise includes: Nuclear Steam Plant (NSP) engineering, Balance of Plant (BOP) engineering, Plant Life Management and Extension, Retube Tooling Systems, Inspection and Maintenance Services, Steam Generator Replacement, Plant Equipment Refurbishment and Retrofits.

This position is for a junior or entry level person who is self-motivated and willing to develop his/her career with experience in nuclear field. The candidate shall be able to follow the instructions from a qualified professional engineer to complete the assigned I&C related scopes or tasks and prepare necessary engineering design documentation as required.

Your role

The qualified individual will be responsible for, but not limited to, the following:

Perform engineering work following SNC-Lavalin/Candu Energy procedures and QA programs, and applicable codes, standards, and regulatory requirements.
Coordinate and interface with client(s), suppliers, stakeholders and other design disciplines to execute assigned engineering work.
Perform conceptual and/or detailed design of CANDU instrumentation and control systems and modifications thereof, including definition of system functional and performance requirements and control algorithms, definition of control logic and wiring arrangements, control parameters, setpoints, instrument ranges and environmental qualification and seismic qualification.
Perform specification, sizing, and selection for various types of I&C components, and produce component related documentation including assessment documents, setpoint calculations, error analyses, technical specifications, etc.
Update and/or prepare I&C engineering design documents including design requirements, design description, elementary diagrams, functional specifications, etc., together with the supporting analysis/assessment documents and other design basis documents.
Provide input to the drawing office for the preparation of various I&C related engineering drawings such as general arrangement drawings, instrument loop diagrams, wiring and connection diagrams, bills of materials, etc.
Provide or update wiring and technical design input to computerized wiring programs.
Interface with various engineering disciplines, suppliers, and other areas of the company.
Assist in providing responses to technical enquiries from design review teams and regulatory agencies.
Participate in review of interfacing discipline's documentation.
Prepare requisitions or Engineering Quotation Requests (EQR) for equipment and materials to support procurement.
Prepare or assist preparation of scope of work and input to bid proposals.
Perform field walk-downs during different design phases and prepare Walkdown reports as required.
Assist field construction and execution activities, such as: field changes, design revisions, commissioning, AFS, closeout, etc.
Complete the assigned scopes or tasks within given budget and schedule, and in good quality.
Deliver technical presentations accurately and effectively.

About You

Relevant Honours degree in a relevant field of engineering from a university of recognized standing.
Eligible to be registered as a Professional Engineer in the Province of Ontario.
Related work experience in I&C engineering for either in the nuclear industry or other heavy industrial environment such as: mining, oil & gas, power, etc is considered an asset.
Previous experience at an operating nuclear power station or a similar installation not required, but would be an asset.
Demonstrate good technical skills and problem-solving capabilities and be able to seek practical solutions to engineering problems.
Willing to become a Nuclear Energy Worker (NEW).
Knowledge of OPG and/or BP Engineering Change Control (ECC) process, standards and procedures is considered an asset.
Shall have excellent communication and technical writing skills and good ability to interact and communicate (both verbal and in writing) professionally with colleagues, clients and contractors.
Possess good interpersonal skills and the ability to work in a multidisciplinary team environment.
Demonstrate strong interpersonal skills and the ability to work in a multidisciplinary 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 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.

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More about this job

Responsibilities

Design and document instrumentation and control systems and modifications for CANDU nuclear projects, including system requirements, control logic, component selection, calculations, and engineering drawings. Coordinate with clients, suppliers, and other disciplines; support procurement, field execution, commissioning, technical reviews, and regulatory responses while meeting quality, budget, and schedule requirements.

Requirements

A relevant honours degree in engineering and eligibility for registration as a Professional Engineer in Ontario are required. The role is entry-level and seeks strong technical problem-solving, communication, and teamwork skills; I&C experience in nuclear or other heavy industry and familiarity with engineering change control processes are assets.

Skills

Instrumentation and Control Engineering
CANDU Systems Design
Conceptual and Detailed Design
Control Logic and Algorithms
Component Specification and Sizing
Setpoint Calculations
Error Analysis
Engineering Documentation
Wiring and Instrumentation Diagrams
Technical Writing
Problem-Solving
Multidisciplinary Collaboration
Client and Supplier Coordination
Field Walk-Downs
Commissioning Support
Quality Assurance

Benefits

Competitive Compensation
Employee Recognition
Flexible Benefits
Training and Professional Development
Hybrid Working
Generous Time-Off Policies

Visa sponsorship

Not detected in the job text

Keywords

Instrumentation and Control
CANDU
Nuclear Engineering
Nuclear Steam Plant
Balance of Plant
Control Systems
Control Algorithms
Control Logic
Wiring Arrangements
Setpoint Calculations
Error Analysis
Environmental Qualification
Seismic Qualification
Elementary Diagrams
Functional Specifications
Instrument Loop Diagrams
Wiring and Connection Diagrams
Computerized Wiring Programs
Engineering Change Control
Quality Assurance
Regulatory Requirements
Procurement
Field Walk-Downs
Commissioning
Nuclear Energy Worker
Professional Engineer
Ontario
OPG
BP

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