Let’s find your next opportunity​

{{ job.job_posting_title }}
{{item.trim() }} {{item.trim() }} {{item.trim() }}
{{ job.job_posting_title }}

{{ job.is_cms_job ? (job.cities.split(';').length > 1 ? 'Various locations' : job.location_mappings[0]) : (job.location_mappings.length > 1 ? 'Various locations' : job.location_mappings[0]) }}

saved
viewed

Senior Computer Systems Engineer

Mississauga, Ontario, Canada

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 conceptual and preliminary design of safety, control and monitoring computer systems to define the system requirements, computer architecture, product/tool technologies and evaluate system performance and reliability.
  • Evaluate digital I&C system products and establish processes and procedures for their use in computer software design, development and verification & validation (V&V).
  • Execute software engineering tasks including software requirements specification, software design descriptions, coding, verification, testing, and documentation.
  • Develop software and scripts using a variety of programming languages/ toolsets/ environments including, but not limited to: IEC 61131-3 languages, C, C++, Varian / SSCI-890 / PDP11 Assembler, Fortran, Pascal, Visual Studio, LabView, XML, Photon.
  • Prepare requirements and develop tools for test/development systems as needed for the production of safety critical software.
  • Update and/or prepare Computers Engineering design documents including software requirements specifications, software design descriptions, and software manuals.
  • Prepare guides and procedures following international standards for work practices related to quality software for safety applications in the nuclear industry.
  • Coordinate and interface with clients, suppliers, and other engineering disciplines within the company.
  • Provide technical guidance and instruction to engineers on the team.
  • Deliver technical presentations accurately and effectively.
  • Manage assigned work effectively, including prioritizing, executing, managing schedule and budget, and reporting, to meet project goals.
Nuclear Engineering

Location

Mississauga, Ontario, Canada

Job Type

Full time

Ref

R-149820

Salary range

-

About you

  • Relevant Honours degree in computer or electrical engineering from a university of recognized standing.
  • Registered as a Professional Engineer in Ontario.
  • Minimum 10 -12 years of experience in a computer controls environment is preferred but may be waived.
  • Experience at an operating nuclear power station or a similar installation 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 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.
  • 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.
Why choose AtkinsRéalis?

Why choose AtkinsRéalis?

Wherever you are in your career – and whoever you are – AtkinsRéalis is for you. Here, support and collaboration are a vibrant part of a culture that lets you choose where – and how far – your career can go. Take on projects that push boundaries and drive sustainable impact, surrounded by colleagues who believe there's no limit to how brilliant you can be. It's time to join a like-minded team where you'll be rewarded, supported, and free to be your kind of brilliant.

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.

Souvik: A nuclear leader and mentor dedicated to shaping a sustainable energy future

Discover Souvik’s video: a nuclear leader and mentor dedicated to shaping a sustainable energy future.

Souvik: A nuclear leader and mentor dedicated to shaping a sustainable energy future

About AtkinsRéalis

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.

Related jobs

Series Lead - Fuel Channel
Nuclear Engineering Full time
Series Lead - Fuel Channel

Kincardine, Ontario, Canada

Senior Computer Systems Engineer
Nuclear Engineering Full time
Senior Computer Systems Engineer

Mississauga, Ontario, Canada

Computer Systems Engineer
Nuclear Engineering Full time
Computer Systems Engineer

Mississauga, Ontario, Canada

Junior Project Specialist
Nuclear Engineering Full time
Junior Project Specialist

Mississauga, Ontario, Canada

Project Engineering Coordinator
Nuclear Engineering Full time
Project Engineering Coordinator

Mississauga, Ontario, Canada

Process Engineer
Nuclear Engineering Full time
Process Engineer

Mississauga, Ontario, Canada

Project Engineering Coordinator
Nuclear Engineering Full time
Project Engineering Coordinator

Pickering, Ontario, Canada

Hexagon Smartplant Smart Electrical Support Specialist
Nuclear Engineering Full time
Hexagon Smartplant Smart Electrical Support Specialist

Various locations

Hexagon SmartPlant Instrumentation Support Specialist
Nuclear Engineering Full time
Hexagon SmartPlant Instrumentation Support Specialist

Various locations

Structural and Fuel Channel Analyst/ Engineer
Nuclear Engineering Full time
Structural and Fuel Channel Analyst/ Engineer

Various locations

Specialist Instrumentation and Controls Engineer
Nuclear Engineering Full time
Specialist Instrumentation and Controls Engineer

Mississauga, Ontario, Canada

Senior Instrumentation and Controls Engineer
Nuclear Engineering Full time
Senior Instrumentation and Controls Engineer

Mississauga, Ontario, Canada

Related blogs

Selfie of Mike and his partner standing in a golf course

Mike on mega projects, reinvention, and aviation at Denver International

From mega projects to airport expansion, read how AtkinsRéalis helped Mike grow beyond project delivery.

Card link for Mike on mega projects, reinvention, and aviation at Denver International

Growing through challenges: Vincent’s journey at AtkinsRéalis

Today, I hold a hybrid role at AtkinsRéalis that combines business development, project management, and technical project delivery. My career path reflects the opportunities I chose to embrace, driven by a constant desire to learn and take on new professional challenges.

Card link for Growing through challenges: Vincent’s journey at AtkinsRéalis

From intern to project manager: Felix on nine years of building an aviation career

Meet Felix, a Project Manager helping shape the future of aviation through digital innovation and major airport projects across Texas.

Card link for From intern to project manager: Felix on nine years of building an aviation career

Building strong teams and stronger communities: Dhara’s career at AtkinsRéalis

Today, I’m the Manager, Municipal Infrastructure, Ontario at AtkinsRéalis, where I lead a multidisciplinary team of more than 40 professionals while overseeing the delivery of complex municipal infrastructure projects. It’s a role that allows me to combine my passion for project delivery with my commitment to supporting and developing people.

Card link for Building strong teams and stronger communities: Dhara’s career at AtkinsRéalis
Award image

AtkinsRéalis named among the 50 GREAT British Employers of Veterans

Proven commitment to those who’ve served, see how AtkinsRéalis supports Armed Forces talent beyond words.

Card link for AtkinsRéalis named among the 50 GREAT British Employers of Veterans

The lessons 23 years in engineering will teach you: Suraya Dolah’s story

Meet Suraya Dolah and read about her 23 year journey in engineering shaped by passion, resilience, and impact.

Card link for The lessons 23 years in engineering will teach you: Suraya Dolah’s story

Chen Zhou on building better transit systems

Connecting people, operations, and infrastructure is what make transit work.

Card link for Chen Zhou on building better transit systems

Not your typical engineering career: Danielle’s story across borders

Read how Danielle Lim‑Kwan built a truly global engineering career.

Card link for Not your typical engineering career: Danielle’s story across borders
Vanessa smiling at the camera

Vanessa on growth, leadership, and meaningful impact

Meet Vanessa and read how she transformed hands-on field experience into impactful leadership and team success.

Card link for Vanessa on growth, leadership, and meaningful impact

Powering major infrastructure: Paul on leading electrical engineering in British Columbia

I’m the Manager of Electrical Engineering for British Columbia at AtkinsRéalis, where I lead our Vancouver electrical team and support the delivery of complex infrastructure projects.

Card link for Powering major infrastructure: Paul on leading electrical engineering in British Columbia

From India to South Korea: building a career in HSE on one of Asia’s biggest pet food expansions

Meet Ashish, and read about what it takes to lead HSE on a major construction project and why he’s invested his career in helping a multinational organisation operate safely.

Card link for From India to South Korea: building a career in HSE on one of Asia’s biggest pet food expansions
Smita in Blue dress

From delivery to legacy: Smita on engineering what matters

From project delivery to quality leadership, Smita's journey has been guided by a simple belief: great engineering is not just about what we build, but the impact it leaves behind.

Card link for From delivery to legacy: Smita on engineering what matters