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Mechanical Engineer

  • Mississauga, ON
  • Hybrid
  • Posted Oct 14, 2026
  • 1 position

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Employment type
Full-time
Experience level
Senior · 5+ years
Minimum education
Bachelor’s degree
Apply by
Dec 31, 2026
Posting language
English
Working hours
40 hours per week

Job summary

Design and engineer nuclear tooling, field-service equipment, inspection systems, and refurbishment tooling, producing the associated requirements, calculations, specifications, drawings, work instructions, test plans, and reports. Support equipment manufacturing, testing, commissioning, maintenance, and field deployment while coordinating with multidisciplinary teams and ensuring compliance with project, client, regulatory, and nuclear quality requirements.

Job details

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 since for more than 60 years. We are proud to be the steward of Canadian CANDU nuclear technology. Your role Perform design and engineering activities for nuclear tooling, field services equipment, inspection systems, and refurbishment tooling. Develop design documentation including design requirements, specifications, calculations, drawings, work instructions, test plans, and technical reports. Support manufacturing, assembly, testing, commissioning, troubleshooting, maintenance, and deployment of tooling and equipment. Participate in design reviews, technical evaluations, and verification activities to ensure compliance with project, client, and regulatory requirements. Provide engineering support for non-conformances, field issues, outage execution, and continuous improvement initiatives. Coordinate with design, manufacturing, quality, procurement, and site teams to deliver project requirements. Support domestic and international site assignments as required. Work in accordance with applicable codes, standards, nuclear quality requirements, and company procedures. Provide guidance to designers, drafters, technicians, and junior engineers. About you Degree in Mechanical Engineering, Mechatronics Engineering, or a related discipline. Registered as, or eligible to become, a Professional Engineer (P.Eng.) in Ontario. Minimum 5 years of experience in mechanical design, tooling, equipment design, field services, maintenance, refurbishment, or nuclear-related projects. Experience developing engineering calculations, specifications, drawings, and test documentation. CAD experience with SolidWorks, Solid Edge, or similar 3D design software. Experience with CANDU tooling, reactor maintenance equipment, refurbishment projects, or field services operations is considered an asset. Knowledge of machine design, mechanics of materials, material selection, hydraulics, pneumatics, and mechanical systems. Knowledge of ASME, CSA, and nuclear industry standards is considered an asset. Strong analytical, troubleshooting, and problem-solving skills. Effective verbal and written communication skills with the ability to work directly with customers and multidisciplinary teams. Security Requirements: Must be eligible to obtain and maintain security clearances required for AtkinsRéalis and customer nuclear sites, including OPG, Bruce Power, SNN, and TQPNC. 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. 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.

What you’ll do

Design and engineer nuclear tooling, field-service equipment, inspection systems, and refurbishment tooling, producing the associated requirements, calculations, specifications, drawings, work instructions, test plans, and reports. Support equipment manufacturing, testing, commissioning, maintenance, and field deployment while coordinating with multidisciplinary teams and ensuring compliance with project, client, regulatory, and nuclear quality requirements.

Requirements

A degree in Mechanical Engineering, Mechatronics Engineering, or a related discipline is required, along with at least five years of relevant mechanical design, equipment, field-service, maintenance, refurbishment, or nuclear-project experience. Candidates must be registered or eligible to become a Professional Engineer in Ontario and have experience with engineering documentation and 3D CAD; nuclear tooling, CANDU, and applicable industry standards are assets.

Benefits

  • Competitive Compensation
  • Employee Recognition
  • Flexible Benefits
  • Training and Professional Development
  • Hybrid Working
  • Generous Time-Off Policies

Listed skills

  • Engineering Drawings · Preferred
  • SolidWorks · Preferred
  • Troubleshooting · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

  • Mechanical Design
  • Tooling and Equipment Design
  • Engineering Calculations
  • Technical Specifications
  • Engineering Drawings
  • Test Documentation
  • SolidWorks
  • Solid Edge
  • Machine Design
  • Mechanics of Materials
  • Material Selection
  • Hydraulics
  • Pneumatics
  • Troubleshooting
  • Nuclear Engineering
  • Technical Communication
  • Equipment Inspection
  • Design Software
  • Design Documentation
  • Mechanics Of Materials
  • Industry Standards
  • Energy Systems
  • Equipment Design
  • ASME Boiler And Pressure Vessel Code (BPVC)
  • Communication
  • Procurement
  • Continuous Improvement Process
  • SolidWorks (CAD)
  • Engineering Support
  • Problem Solving
  • Mechanical Engineering
  • Machinery Design
  • Project Management
  • Mechanical Systems
  • Nuclear Technology
  • Operations
  • Security Requirements Analysis
  • Test Planning
  • Tooling
  • Troubleshooting (Problem Solving)
  • Commissioning
  • Requirements Specifications

Job areas

  • Engineering
  • Energy
  • Manufacturing
  • Mechanical Engineer
  • Mechanical Engineer (General)
  • Mechanical Engineers

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