Senior Mechanical Engineer
- Mississauga
- Nuclear
Overview
Your role
- Provide mechanical and equipment engineering support with the preparation of technical deliverables including technical specifications, test procedures, commissioning plans and registration design submissions for nuclear power plant (NPP) components and mechanical systems.
- Perform conceptual and detail design activities for mechanical systems which includes flow sheets, detail drawings, equipment arrangement/layouts as well as sizing and selection of mechanical components related to nuclear steam plants.
- Supporting manufacturing, assembly, testing and commissioning tasks.
- Review design reports, analysis reports, calculations, documents, and drawings in support of design verification.
- Define project work scope, monitoring and reporting project progress and communicating with clients.
- Interface with other engineering disciplines to obtain data and resolve issues relevant to design.
- Perform pre-order and post-order engineering support including review of client requirements, applicable documents and drawings, review of codes and standards, performing cost estimating, proposal preparation, as well as preparing and reviewing of engineering quotation requests, technical evaluations and resolving design deviations.
- Conduct site visits at nuclear generating stations and suppliers.
- Provide engineering support to quality surveillance, manufacturing, assembly and testing with non-conformances.
- Evaluate the completeness and status of delivered equipment.
- Work in accordance with applicable codes, standards, regulations, and client and company procedures.
- Assist other engineers and branch manager with daily engineering activities.
About you
- Engineering degree from an accredited University in Mechanical Engineering, Chemical Engineering, Nuclear Engineering or Engineering Science.
- A minimum of 10 years of experience in Mechanical Design of industrial machines, automation equipment and automated-tooling design, and/or in Equipment Engineering with knowledge in pumps, fans, motors, valves, heat exchanges, steam generators, pressure vessels, etc.
- Experience performing work to nuclear power plants procedures and practices and qualifications for nuclear power plants engineering activities is an asset.
- Experience working in or performing design work for a nuclear facility licensed in Canada or a nuclear reactor licensed outside Canada.
- Experience working on Nuclear ECC process.
- Qualification in the last five (5) years as a Specialized Professional Engineer to ASME Section III is an asset.
- Registered Professional Engineer in a Province of Ontario, qualified to seal mechanical and chemical engineering documents.
- Solid understanding of process systems, mechanics of machines, mechanics of materials, material selection and fundamentals of machine component design.
- Solid understanding and experience with equipment sizing, selection, and troubleshooting of issues.
- Knowledge of/experience using nuclear pressure boundary Codes and Standards, including CSA N285.0 and ASME Sections III.
- Working knowledge of/experience with the ASME Section III, CSA B51 standard, ANSI B31.1 codes, ASME Section VIII and other nuclear-power-plant applicable standards or regulatory guides related to permanent plant components, pressure boundary equipment, and/or reactor systems is an asset.
- Knowledge of seismic and environmental qualification methods and process is an asset.
- Specific knowledge and experience related to pressure vessels, valves, ventilation systems, as applicable to nuclear power stations.
- Presentation skills and public speaking abilities is an asset. Strong written and oral communication skills.
- Willing to travel to and potentially work at Project sites to meet corporate needs.
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 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.
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.
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.
Design your future! Sign up for job alerts straight to your inbox so you don't miss your next opportunity. Subscribe to jobs like this!
Great news! We will let you know when a new job like this has been added!
Preview
IndiaContent type
BlogsPublish date
11/10/2025
Summary
Like many graduates stepping into their first job, Chinmay was searching for more than just a role, he wanted a place where his ideas could take shape, and his learning could never stop. Joining
by
Akash Kumar
Preview
IndiaContent type
BlogsPublish date
11/10/2025
Summary
Like many graduates stepping into their first job, Chinmay was searching for more than just a role, he wanted a place where his ideas could take shape, and his learning could never stop. Joining
by
Akash Kumar
Design your future! Sign up for job alerts straight to your inbox so you don't miss your next opportunity. Subscribe to jobs like this!
Great news! We will let you know when a new job like this has been added!
Related job roles
Salary
Location
Mississauga
Job Type
Full Time
Career Area
Project management
Market
Nuclear
Category
Permanent
Location
Mississauga
Description
OverviewThe Digital Project Manager will report to the VP, Digital Solutions and will be responsible for all aspects of the implementation and operation of specific workstreams or initiatives within t
Reference
R-142184
Expiry Date
01/01/0001
Salary
Location
Pickering
Job Type
Full Time
Career Area
Project management
Market
Nuclear
Category
Permanent
Location
Pickering
Description
Project Manager, ToolingAtkinsRéalis 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
Reference
R-142124
Expiry Date
01/01/0001
Salary
Location
Mississauga
Job Type
Full Time
Career Area
Engineering (Other)
Market
Nuclear
Category
Permanent
Location
Mississauga
Description
DSA / PSA Integration ManagerAtkinsRéalis 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 ar
Reference
R-142123
Expiry Date
01/01/0001
Salary
Location
Derby
Job Type
Full Time
Career Area
Administrative support
Market
Nuclear
Category
Permanent
Location
Derby
Description
OverviewAre you a highly organized and proactive individual who thrives in a dynamic environment? Do you love organising people and tasks, and providing a great service to a diverse and successful tea
Reference
R-142098
Expiry Date
01/01/0001
Author
Shamily GopalAuthor
Shamily GopalSalary
Location
Mississauga
Job Type
Full Time
Career Area
Engineering (Other)
Market
Nuclear
Category
Permanent
Location
Mississauga
Description
Senior Licensing EngineerAtkinsRéalis 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
Reference
R-142048
Expiry Date
01/01/0001
Salary
Location
Sheffield
Job Type
Full Time
Career Area
Mechanical engineering
Market
Nuclear
Category
Permanent
Location
Derby
Manchester
Sheffield
Epsom
Bristol
Glasgow
Description
OverviewAre you a Mechanical Engineer, with a background in finite element analysis, who thrives on difficult problems? Are you drawn to complex analysis projects and excited by the opportunity to hea
Reference
R-141941
Expiry Date
01/01/0001
Salary
Location
Manchester
Job Type
Full Time
Career Area
Nuclear
Market
Nuclear
Category
Permanent
Location
Manchester
Description
OverviewTake the lead in global nuclear safetyAre you ready to take up a vital role in shaping some of our exciting projects? How about joining our talented team, where everyone has a voice, and toget
Reference
R-141766
Expiry Date
01/01/0001
Author
Shamily GopalAuthor
Shamily GopalSalary
Location
Glasgow
Job Type
Full Time
Career Area
Commercial management
Market
Nuclear
Category
Permanent
Location
Birmingham
Manchester
London
Epsom
Bristol
Glasgow
Description
OverviewShape the Future of Nuclear InnovationAre you ready to shape the future of nuclear across the UK, Europe and the Middle East? AtkinsRéalis Nuclear is on a growth trajectory—doubling revenue ov
Reference
R-141681
Expiry Date
01/01/0001
Salary
Location
Mississauga
Job Type
Full Time
Career Area
Procurement
Market
Nuclear
Category
Permanent
Location
Mississauga
Toronto
Pickering
Description
OverviewReporting to the Project Procurement Director, the Project Procurement Manager, RFBR is responsible for leading the project procurement team of Buyer and Order Administrators on all procuremen
Reference
R-141662
Expiry Date
01/01/0001
Salary
Location
Mississauga
Job Type
Full Time
Career Area
Project management
Market
Nuclear
Category
Permanent
Location
Mississauga
Description
OverviewAs part of Candu International Engineering Services at Candu Energy, we are seeking a highly experienced Project Manager to support the delivery of a dynamic portfolio of international project
Reference
R-141661
Expiry Date
01/01/0001
Related articles
Preview
IndiaContent type
BlogsPublish date
11/10/2025
Summary
Like many graduates stepping into their first job, Chinmay was searching for more than just a role, he wanted a place where his ideas could take shape, and his learning could never stop. Joining
by
Akash Kumar
Preview
EuropeContent type
BlogsPublish date
09/03/2025
Summary
I'm Sam – a mechanical engineer usually based in the UK, now working in Ontario, Canada. My contract abroad has opened up new technical experiences, digital innovation opportunities, and a whole
Preview
EuropeContent type
BlogsPublish date
08/29/2025
Summary
Hi, my name is Euan. I'm a mechanical engineer working in the Nuclear industry. For the past year and a half, I’ve been part of the team designing the solution to safely dismantle a contaminated v
Preview
EuropeContent type
BlogsPublish date
08/22/2025
Summary
My name is Eva, and in this blog I want to show you how, at AtkinsRéalis, you can take charge of your own development from the day you join – without needing "a grand plan." Progressing from a
Preview
Middle EastContent type
BlogsPublish date
08/01/2025
Summary
The United Arab Emirates is moving decisively from an oil-fueled economy toward that of a knowledge-based economy, with ambitious plans between now and 2030. Central to this transformation is a
Preview
AsiaContent type
BlogsPublish date
08/01/2025
Summary
In Asia, mechanical engineering jobs are in high demand. With the construction sector in Hong Kong alone set to grow by 2% from 2025 to 2028, the region is experiencing a steady expansion. As Asia
Preview
EuropeContent type
BlogsPublish date
07/22/2025
Summary
Hi, I'm Dane. I'm currently on assignment in Canada, working on a small modular reactor (SMR) project with AtkinsRéalis. I've been part of the team for about three months now – and since then, I'v
Preview
IndiaContent type
BlogsPublish date
07/16/2025
Summary
Hello, my name is Amandeep, and I work at AtkinsRéalis's Global Technology Centre over here in India. I've now been working in the industry for two decades. Most of my experience has been in desi
Preview
EuropeContent type
ProjectsPublish date
06/13/2025
Summary
Supporting Rolls-Royce SMR through GDA Rolls-Royce SMR Ltd (RR SMR) is developing innovative ways to tackle the threat of global climate change - producing and distributing smaller, factory-built
Preview
CanadaContent type
BlogsPublish date
06/09/2025
Summary
As Ontario invests in long-term energy security, the province’s nuclear sector is entering a historic new chapter, one that’s creating high-quality careers, strengthening local communities, and rea
Talent community
Would you like to know more? Not ready to apply? Join our talent community to stay connected and engaged with us at AtkinsRéalis.
Find out more
