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Added 2 hours ago
AI
Junior Structural Engineer
Acuren Inspection, Inc.
Dartmouth, NS
- Full-time
…plant sites, and civil infrastructure. Under the mentorship of senior structural engineers, you will grow toward independent project leadership and, in time, the professional certification…
Added 11 hours ago
UO
Substation Engineer
University of Alaska Fairbanks Petroleum Engineering
Engineer, BC
- Full-time
Use project management skills to support and/or lead projects as assigned.
Added 15 hours ago
H
Senior Electrical Engineer
HDR
Toronto, ON · Ottawa, ON · Richmond Hill, ON · Victoria, BC · Vancouver, BC · Calgary, AB
- Full-time
Reporting to the Electrical Section Manager, the Senior Electrical Engineer is a member of the integrated project team that contributes Electrical engineering knowledge and analysis during…
Added 15 hours ago
H
Senior Mechanical Engineer
HDR
Calgary, AB
- Full-time
Reporting to the Mechanical Section Manager, the Senior Mechanical Engineer is a member of the integrated project team that contributes Mechanical engineering knowledge and analysis during…
Added 15 hours ago
H
Senior Project Manager
HDR
Calgary, AB
- Full-time
…precision, creativity, and collaboration. Whether you're optimizing energy efficiency, integrating resilient systems, or engineering the backbone of next-generation facilities, your…
Added 1 day ago
H
Electrical Engineer
Hays
ON · Ontario, Canada
- $110,000 to $140,000 CAD / year
- Full-time
Long-term career growth opportunities into Senior Engineer, Lead Engineer, and other leadership positions.
Added 1 day ago
WI
Senior Technical Manager, Geotechnical Engineering
WSP in Canada
Thunder Bay, ON
- Full-time
WSP is currently seeking a highly motivated Senior Geotechnical Engineer to join our Ground Engineering team, located at our Thunder Bay Ontariooffice. You will work closely with our…
Added 1 day ago
A
Project Manager
Actalent
Calgary, AB
- $180,000 to $200,000 CAD / year
- Full-time
You will work on a large, high-profile industrial project environment focused on complex energy or petrochemical facilities. The role involves close collaboration with multidisciplinary…
Added 1 day ago
GV
Senior Cybersecurity Engineer (Center of Excellence)
GE Vernova
Markham, ON
- $146,200 to $219,200 CAD / year
- Full-time
We are looking for a senior OT cybersecurity engineer to join the Grid Automation Cybersecurity Center of Excellence (COE). The COE is a new central team within the Grid Automation OT…
Added 1 day ago
Senior Project Engineer, Pipeline, Pacific Link (Contract)
Trans Mountain
Calgary, AB
Trans Mountain is seeking a collaborative, motivated, and values driven individual to join our dynamic team as a Senior Project Engineer, Pipeline, Pacific Link (Contract). Reporting to the…
Added 1 day ago
A
Senior Architect – Airport Project
AECOM
Mississauga, ON
- $170,000 to $200,000 CAD / year
- Full-time
…world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our…
Added 1 day ago
A
Senior Mechanical Engineer
AtkinsRéalis
Port Elgin, ON
- Full-time
AtkinsRéalis is looking to hire a Senior Mechanical Engineer for the Port Elgin location. This position requires an experienced, self-motivated professional capable of working…
Added 1 day ago
A
Senior Mechanical Engineer – Mines and Ports
AECOM
Sudbury, ON · Calgary, Alberta
- $145,000 to $195,000 CAD / year
- Full-time
We are seeking a highly skilled and experienced Senior Mechanical Engineer to join our team, focusing on capital projects and sustaining capital projects for mine and port operations. The…
Added 1 day ago
Senior Technical Manager, Geotechnical Engineering
WSP
Thunder Bay, ON
WSP is currently seeking a highly motivated Senior Geotechnical Engineer to join our Ground Engineering team, located at our Thunder Bay Ontario office. You will work closely with our…
Added 1 day ago
H
Electrical Engineer
Hays
SK · Saskatchewan, Canada
- $110,000 to $140,000 CAD / year
- Full-time
Long-term career growth opportunities into Senior Engineer, Lead Engineer, and other leadership positions.
Added 1 day ago
A
Senior Mechanical Engineer – Mines and Ports
AECOM
Markham, ON · Calgary, Alberta
- $150,000 to $220,000 CAD / year
- Full-time
We are seeking a highly skilled and experienced Senior Mechanical Engineer to join our team, focusing on capital projects and sustaining capital projects for mine and port operations. The…
Added 1 day ago
EG
Safety Chief - RAMS and Systems Assurance
Egis Group
Hamilton, ON
- Full-time
Safety Chief - RAMS and Systems Assurance is a senior leadership role based in Hamilton, Ontario, Canada, responsible for directing system safety, reliability, availability,…
Added 1 day ago
EI
Safety Chief - RAMS and Systems Assurance
Egis in Canada
Hamilton, ON
- Full-time
Safety Chief - RAMS and Systems Assurance is a senior leadership role based in Hamilton, Ontario, Canada, responsible for directing system safety, reliability, availability,…
Added 1 day ago
H
Senior Electrical Engineer
Hays
Saskatoon, SK
- $130,000 to $150,000 CAD / year
- Full-time
As a Senior Electrical Engineer, you will provide technical leadership for the design and development of medium-voltage electrical distribution systems used in industrial and underground…
Added 1 day ago
EC
Intermediate Electrical Engineer
EnGlobe Corp.
Calgary, AB · Lethbridge, AB
- Full-time
Preparing cost estimates, technical reports, meeting minutes, design drawings, specifications, and contract documents under guidance of senior engineering staff.
Added 1 day ago
WI
Lead Mechanical Engineer, Resources
WSP in Canada
Charlottetown, PE
- Full-time
Shape the World Around You – As a Lead Mechanical Engineer, you will lead the delivery of complex mechanical and piping engineering for mining and industrial projects across Canada. From…
Added 1 day ago
WI
Lead Mechanical Engineer, Resources
WSP in Canada
Canada
- Full-time
Shape the World Around You – As a Lead Mechanical Engineer, you will lead the delivery of complex mechanical and piping engineering for mining and industrial projects across Canada. From…
Added 1 day ago
WI
Lead Mechanical Engineer, Resources
WSP in Canada
Charlottetown, PE
- Full-time
Shape the World Around You – As a Lead Mechanical Engineer, you will lead the delivery of complex mechanical and piping engineering for mining and industrial projects across Canada. From…
Added 1 day ago
WI
Lead Mechanical Engineer, Resources
WSP in Canada
St. John's, NL · Greater St. John's Metropolitan Area
- Full-time
Shape the World Around You – As a Lead Mechanical Engineer, you will lead the delivery of complex mechanical and piping engineering for mining and industrial projects across Canada. From…
Added 1 day ago
WI
Lead Mechanical Engineer, Resources
WSP in Canada
St. John's, NL · Greater St. John's Metropolitan Area
- Full-time
Shape the World Around You – As a Lead Mechanical Engineer, you will lead the delivery of complex mechanical and piping engineering for mining and industrial projects across Canada. From…

AtkinsRéalis

Senior Mechanical Engineer

Mississauga, ON, Canada

Full-time

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Applications open in a new tab.

Job details

Job type: Full-time
Apply by: Dec 31, 2026
Experience: Typically 8-12 years of experience in mechanical design, tooling, equipment, automation, field engineering, or nuclear projects.
Posting language: English
Posted: Oct 8, 2026

Original job description

Job Description

The Senior Mechanical Engineer will support refurbishment, retube, field services, and new-build nuclear projects. This role combines design engineering expertise with field execution support, providing technical leadership throughout the full lifecycle of tooling, equipment, and mechanical systems from concept development through deployment, commissioning, maintenance, and field operations.

The successful candidate will lead complex engineering assignments, support tooling and field execution activities, mentor junior staff, and interface with clients, suppliers, and site personnel to ensure safe, reliable, and efficient project delivery.

Your role within the team

Lead conceptual, preliminary, and detailed mechanical design activities for Retube Tooling, specialized equipment, and field service systems.
Execute and oversee engineering work packages supporting refurbishment, retube, maintenance, outage, and new-build projects.
Provide technical leadership for design, procurement, fabrication, assembly, testing, commissioning, deployment, and field implementation activities.
Support field execution teams by resolving technical issues, developing corrective actions, and providing engineering guidance during equipment installation, operation, maintenance, and troubleshooting.
Prepare and review engineering deliverables including design requirements, design descriptions, technical specifications, calculations, drawings, test procedures, commissioning plans, operating instructions, and design change packages.
Perform and verify engineering analyses related to machine design, structural integrity, mechanisms, materials, hydraulics, pneumatics, lifting systems, and pressure-retaining components.
Coordinate and lead multidisciplinary teams consisting of engineers, technologists, designers, manufacturing personnel, suppliers, and field staff.
Interface directly with clients, vendors, contractors, and station personnel to define requirements and resolve technical challenges.
Mentor and provide technical oversight to junior engineers, designers, and technologists.
Travel periodically to customer sites and nuclear generating stations to support installation, commissioning, outage execution, inspections, and troubleshooting activities.

Why choose AtkinsRéalis as an employer?

Opportunity to work on major nuclear refurbishment, retube, field services, and new-build projects.
Exposure to both engineering design and field implementation activities.
Career growth through leadership, mentoring, and technical specialization opportunities.
Competitive compensation, flexible benefits, employee share plan, and defined contribution pension plan.
Strong commitment to safety, quality, innovation, and professional development.
Collaborative environment that values technical excellence and work-life balance.

About You

Bachelor's degree in Mechanical Engineering, Mechatronics Engineering, or equivalent.
Registered Professional Engineer (P.Eng.) in Ontario, or eligible for registration.
Typically 8-12 years of experience in mechanical design, tooling, equipment, automation, field engineering, or nuclear projects.
Strong understanding of machine design, mechanics of materials, manufacturing methods, and mechanical system integration.
Experience leading engineering tasks and coordinating multidisciplinary teams.
Experience supporting field execution, commissioning, maintenance, outage, or refurbishment activities is an asset.
Familiarity with nuclear industry codes and standards including ASME and CSA requirements is an asset.
Experience with 3D CAD software such as SolidWorks, Solid Edge, Creo, or Inventor.
Excellent communication, problem-solving, and technical leadership skills.

Excellent problem-solving, communication, leadership, and stakeholder management skills.
Ability to obtain and maintain nuclear security clearance and access authorization.

Are you up for the challenge? Apply today and join our team to help engineer a Better Future for our Planet and its People.

Worker Type

Employee

Job Type

Regular

At 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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More about this job

Responsibilities

The Senior Mechanical Engineer will lead the design and field execution of complex mechanical systems for nuclear projects, including refurbishment and new-builds. They will provide technical leadership, mentor junior staff, and coordinate with multidisciplinary teams to ensure safe and efficient project delivery.

Requirements

Candidates must hold a Bachelor's degree in Mechanical or Mechatronics Engineering and be a registered Professional Engineer (P.Eng.) in Ontario. The role requires 8-12 years of experience in mechanical design or nuclear projects, along with proficiency in 3D CAD software and strong technical leadership skills.

Skills

Mechanical design
Nuclear engineering
Tooling design
Field service
Project leadership
Machine design
Structural integrity
Hydraulics
Pneumatics
CAD software
Technical specifications
Commissioning
Troubleshooting
Mentoring
Stakeholder management
ASME standards

Benefits

Competitive compensation
Flexible benefits
Employee share plan

Visa sponsorship

Not detected in the job text

Keywords

Mechanical Engineering
Nuclear Projects
Refurbishment
Retube
Field Services
Tooling
Design Engineering
Commissioning
SolidWorks
Solid Edge
Creo
Inventor
ASME
CSA
P.Eng.
Machine Design
Structural Integrity
Hydraulics
Pneumatics
Project Delivery
Technical Leadership
Manufacturing
Outage Execution
Nuclear Security Clearance
Mechanical Systems

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