Posted 18 days ago
Senior Mechanical Engineer
@ Candu Energy Inc.
Mississauga, Ontario
Overview
AtkinsRéalis is hiring a Senior Mechanical Engineer for its Modularization & Constructability team to lead offsite preassembly and constructability work on CANDU nuclear equipment and piping skids. The role requires a P.Eng., at least 8 years of related experience including 3 years of field engineering, and the ability to direct other engineers. The posting describes a hybrid working culture and generous time-off policies.
Responsibilities:
- Perform engineering work under QA programs and applicable codes
- Develop constructability plans and preassembly packages
- Prepare engineering drawings, calculations and technical documents
- Provide technical guidance to engineers and drafters
- Support field construction, commissioning and closeout
Requirements summary:
- Mechanical engineering degree and P.Eng. licence (mandatory)
- Minimum 8 years related experience, including 3 years of field engineering
- Preassembly or offsite work experience (required)
- Nuclear piping, valves and pumps design experience (asset)
- Working knowledge of CSA N285.0, ASME Section III and ANSI B31.1
Tools & skills
Source and dates
Employer career site / ATS feed · workday
- Employer posting date
- 2026-10-19
- First seen by our source
- 2026-10-20
- Source record updated
- 2026-11-03
These dates describe the source record, not a live verification that the employer is still hiring. Check the original posting.
Job details
| Seniority | Senior |
| Department | Engineering |
| Experience | 8+ years |
| Hours per week | 40 (estimated) |
| Travel | ground: minimal |
| Work setting | Office, Plant or factory, Construction site |
| Position | Sitting and standing |
| Physical demands | physical low · computer high |
| Languages | English |
| Licences & certifications | P.Eng., ASME Appendix XXIII |
| Education | Bachelor’s degree (required) |
| Fields of study | Mechanical Engineering |
| Perks mentioned | Flexible hours, Paid training |
Summary and details written by AI from the posting; the employer’s posting is the authority.
Candu Energy Inc.
| Field | Value |
|---|---|
| Open jobs on Jobsy | 226 |
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 for more than 60 years. We are proud to be the steward of Canadian CANDU nuclear technology.
This position is in the Modularization & Constructability team and requires an individual who is self-motivated and capable of working independently and developing his/her career and experience in the nuclear field.
The candidate shall be able to apply mature engineering knowledge to direct and supervise other professional engineers, to plan, coordinate, and complete the assigned preassembly and constructability scopes or tasks and develop necessary engineering design documentation as required.
Your role
- Perform Engineering work following AtkinsRéalis/Candu Energy QA programs, and applicable codes, standards, and regulation requirements.
- Coordinate and interface with clients, suppliers, stakeholders and other design disciplines or departments to execute assigned constructability engineering work.
- Involve in conceptual, preliminary, and/or detailed design of CANDU off-site pre-assembly and construction packages.
- Participate in development of construction methods and sequences for nuclear equipment and piping skids.
- Develop plans for off-site pre-fabrication, pre-assembly, transportation, and installation for equipment and piping skids.
- Review technical documents including drawings, constructability reports, and procedures.
- Develop technical reports such as constructability, risk-review, and assessment reports for preassemblies.
- Develop or support construction plans including but not limited to sequence strategies, schedule, and MTO.
- Prepare technical documents, such as engineering drawings (including GA, ISO, pipe supports, flow diagrams), calculations, design/analysis reports, design requirements, design manuals, bill of materials, design specifications, technical specifications, data sheets, system classification lists, code classifications, commissioning specifications, etc.
- Prepare requisitions or Engineering Quotation Requests (EQR) for equipment and materials to support module fabrication and procurement.
- Review supplier technical documents and perform technical bid analyses.
- Provide technical guidance and instruction to Engineers, Designers/Drafters and more junior staff as required.
- May be requested by Engineering Manager to lead technical packages with a small or large team of Engineers, Designers, and Coordinators.
- Perform site visits to client and supplier shops as required.
- Perform field walk-downs during different design phases as required.
- Support field construction and execution activities, such as field changes, design revisions, commissioning, AFS, closeout, etc.
- Provide prompt response and engineering resolutions on any critical engineering related matters.
- Complete the assigned scopes or tasks within a given budget and schedule, and in good quality.
About you
- Engineering Degree in Mechanical from an accredited university or equivalent degree as recognized by Professional Engineers Ontario (PEO).
- Having a P.Eng. license for this position is mandatory.
- Qualified or eligible to be qualified as ASME Appendix XXIII is an asset.
- Minimum 8 Years of related work experience including 3 Years of field engineering within a heavy industrial environment with emphasis on constructability.
- Preassembly/offsite work experience is a must. Nuclear work experience is an asset.
- Design engineering experience in nuclear class 1, 2, 3 and 6 piping systems, valves, and pumps for Nuclear Power Plants is an asset.
- Experience in AutoPipe, MATLAB, MathCAD, ANSYS Mechanical (APDL preferred or Workbench), and LS-DYNA, or other similar software programs is an asset.
- Site Experience in construction, or commissioning of plant mechanical and structural systems for nuclear or other heavy industries would be an asset.
- Working knowledge of MS Excel advanced tools and other database applications.
- Working knowledge of CSA N285.0, CSA B51, CSA N289, ASME Section III and ANSI B31.1 codes, and any other applicable standards or regulatory guides related to permanent plant components, pressure boundary equipment, and/or reactor systems is preferred.
- Knowledge of AutoCAD, and 3D Model reviewer such as Navisworks.
- Must have knowledge of mechanical, structural and piping systems or equipment (knowledge of CANDU nuclear systems would be an asset).
- Shall have excellent technical document reviewing and writing skills.
- Must be able to apply technical principles in a logical and practical manner to resolve engineering issues or technical problems.
- Must be willing to become a Nuclear Energy Worker (NEW), although this will not be a regular requirement as part of the job.
- Demonstrate good interpersonal skills and the ability to work in a multidisciplinary team environment.
- Excellent leadership, communication, and stakeholder management skills.
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.
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
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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.
Worker Type
EmployeeJob Type
RegularAt AtkinsRéalis, we seek to hire individuals with diverse characteristics, backgrounds and perspectives. We strongly believe that world-class talent makes no distinctions based on gender, ethnic or national origin, sexual identity and orientation, age, religion or disability, but enriches itself through these differences.
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