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AtkinsRéalis

Senior I&C Engineer

Mississauga, ON, Canada

Full-time

Apply About employer

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Job details

Job type: Full-time
Apply by: Nov 2, 2026
Experience: Minimum 12 Years experience in conceptual, preliminary and/or detailed design of CANDU instrumentation and control systems and modifications.
Posting language: English
Posted: Oct 3, 2026

Original job description

Overview

A Senior Instrumentation and Controls (I&C) engineer is required to work on the design and development of I&C systems on projects involving new designs and/or enhancements (via Services type of work) to CANDU plants and other nuclear installations.

Your role

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.
Assist in providing technical support to engineering groups at site.
Deliver technical presentations accurately and effectively.
Manage assigned work effectively, including prioritizing, executing, managing schedule and budget, and reporting, to meet project goals.

About You

Registered Professional Engineer in the Province of Ontario, member in good standing.
BS Honors degree in a relevant field of I&C/Electrical/Automation engineering.
Minimum 12 Years experience in conceptual, preliminary and/or detailed design of CANDU instrumentation and control systems and modifications. Familiarity with Engineering Change Control/Modification process is an asset.
Experience at an operating nuclear power station or a similar installation is 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.
Demonstrate strong leadership and interpersonal skills as well as a strong customer focus and the ability to work in a multidisciplinary team environment.
Excellent written and oral communication skills.
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.
Previous experience with methodologies and processes used for I&C modernization of a nuclear power plant 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.

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 develop instrumentation and control systems and modifications for CANDU plants and other nuclear installations, including system requirements, control logic, component selection, calculations, and engineering documentation. Coordinate with multidisciplinary teams, suppliers, drawing offices, site engineering groups, design reviewers, and regulators while managing assigned work to meet project goals.

Requirements

Requires an Ontario-registered Professional Engineer in good standing, a relevant honours bachelor's degree, and at least 12 years of experience designing CANDU I&C systems and modifications. Candidates should demonstrate strong technical, problem-solving, leadership, teamwork, customer-service, and communication skills; nuclear station experience, modernization experience, and familiarity with applicable QA programs and standards are assets.

Skills

Instrumentation and Controls Engineering
CANDU Systems
Conceptual and Detailed Design
Control Algorithms
Control Logic and Wiring
I&C Component Specification and Selection
Setpoint Calculations
Error Analysis
Engineering Documentation
Engineering Drawings
Nuclear Engineering
Engineering Change Control
Technical Problem-Solving
Project and Schedule Management
Technical Communication

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 Controls
CANDU
Nuclear Installations
I&C Systems
System Functional Requirements
Performance Requirements
Control Algorithms
Control Logic
Wiring Arrangements
Setpoints
Environmental Qualification
Seismic Qualification
I&C Components
Setpoint Calculations
Error Analyses
Technical Specifications
Elementary Diagrams
Functional Specifications
Instrument Loop Diagrams
Computerized Wiring Programs
Engineering Change Control
Nuclear Power Stations
I&C Modernization
Nuclear Quality Assurance
CSA Standards
IEEE Standards
Regulatory Agencies
Professional Engineer
Project Schedule Management

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