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Added 3 mins ago
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AtkinsRéalis

I&C Engineer

Mississauga, ON, Canada

Job type: Full-time
Apply by: Nov 1, 2026
Experience: Experience commensurate with the grade level, with a minimum of 7 to 12 years of pertinent engineering experience.
Posting language: English
Posted: Oct 2, 2026

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Original job description

Overview

AtkinsRéalis is one of Canada's largest private sector nuclear engineering groups. 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.

Your role

Perform engineering work following AtkinsRéalis/Candu Energy procedures and QA programs, and applicable codes, standards, and regulatory requirements.
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.
Prepare requisitions or Engineering Quotation Requests (EQR) for equipment and materials to support procurement.
Coordinate and interface with client(s), suppliers, stakeholders and other design disciplines to execute assigned engineering work.
Deliver technical presentations accurately and effectively.
Interface and provide technical guidance and instruction to Designers/Drafters.
Prepare 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.
Assist in providing responses to technical enquiries from design review teams and regulatory agencies.
Complete the assigned scopes or tasks within given budget and schedule, and in good quality.
Provide prompt response and engineering resolutions on any critical engineering related matters.

About You

Engineering Degree in a relevant field of engineering from an accredited university or equivalent degree as recognized by Professional Engineers Ontario (PEO).
Registered as a Professional Engineer in the Province of Ontario.
Experience commensurate with the grade level, with a minimum of 7 to 12 years of pertinent engineering experience.
Previous experience at an operating nuclear power station or a similar installation not required, but would be an asset.
Site experience in construction, or commissioning of electrical systems for nuclear or other heavy industries would be an asset.
Familiarity with instrumentation and control system functions, configurations and equipment as used for CANDU plant process systems, safety systems, or safety-related systems, or for similar systems in other industries would be an asset.
Familiarity with industrial/nuclear QA programs and procedures along with pertinent CSA, IEEE, or related I&C engineering codes and standards would be an asset.
Knowledge of OPG and/or BP Engineering Change Control (ECC) process, standards and procedures is considered an asset.
Demonstrate strong interpersonal skills and the ability to work in a multidisciplinary team environment.
Demonstrate good technical skills and problem-solving capabilities, and be able to seek practical solutions to engineering problems.
Excellent written and oral communication skills.
Willingness to become a Nuclear Energy Worker (NEW).
Shall have fundamental technical knowledge to resolve engineering issues or technical problems.
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.

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 CANDU instrumentation and control systems, including system requirements, control logic, component selection, calculations, drawings, and procurement documentation. Coordinate with clients, suppliers, and multidisciplinary teams, and support field walk-downs, construction, commissioning, design reviews, and technical issue resolution.

Requirements

Requires an engineering degree in a relevant discipline and Professional Engineer registration in Ontario, with 7–12 years of pertinent engineering experience. Strong technical problem-solving, communication, and teamwork skills are required; nuclear or heavy-industry experience, CANDU I&C familiarity, and knowledge of applicable codes and quality programs are assets.

Skills

Instrumentation and Control Engineering
CANDU Systems
Conceptual and Detailed Design
Control Logic and Algorithms
Component Specification and Sizing
Setpoint Calculations
Error Analysis
Engineering Documentation
Electrical Drawings
Procurement Support
Client and Supplier Coordination
Technical Presentations
Field Walk-Downs
Construction and Commissioning Support
Nuclear Quality Assurance
Technical Writing

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
Control Systems
Control Algorithms
Control Logic
System Functional Requirements
Performance Requirements
Component Specification
Setpoint Calculations
Error Analysis
Environmental Qualification
Seismic Qualification
Engineering Design Documents
Elementary Diagrams
Instrument Loop Diagrams
Wiring Diagrams
Bills of Materials
Engineering Quotation Requests
Procurement
Nuclear Quality Assurance
CSA Standards
IEEE Standards
Engineering Change Control
Field Walk-Downs
Commissioning
Construction Support
Professional Engineer
Nuclear Energy Worker

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