Senior Mechanical Engineer/Officer

Status: Regular Full Time
Working Conditions: Hybrid    
Education Level: Bachelor of Engineering
Base Location: Oshawa, ON
Shifts(s): Days 
Travel: 10% 
Deadline to Apply: December 4, 2025
Salary Range: $1,704.68 - $2,924.93 Per Week 
 
Electrify your career and help build a brighter tomorrow. 
Every generation has a challenge that defines them. At OPG, we are calling on all innovators, disruptors, thought leaders and change-makers. Join us as we work to electrify life in one generation and build a sustainable future powered by our electricity, our ideas, and our people. Join OPG and make history. 

Whether you work in the skilled trades or are a business professional, a career at OPG is an opportunity to electrify your life on -- and off -- the job. 

JOB OVERVIEW 
Ontario Power Generation (OPG) is looking for dynamic, strategic, and results-driven professional to join our Mechanical- Piping & Components Analysis team in the role of Senior Mechanical Engineer/Officer.

Reporting to the Manager, Engineering, this is an exciting opportunity to work in an environment where you will contribute to Ontario Power Generation’s continued growth and success in generating safe, clean, reliable low-cost power in a sustainable manner.

KEY ACCOUNTABILITIES 

• Perform component and support stress analysis using ABAQUS and/or ANSYS to comply with CSA Standards (i.e. N285 and N286), OPG Nuclear Standards and Procedures, ASME PVC, and CNSC requirements.  
• Perform piping and feeder stress analysis using AUTOPIPE and ANSYS to comply with CSA Standards (i.e. N285 and N286), OPG Nuclear Standards and Procedures, ASME PVC, and CNSC requirements.
• Prepare, review, verify and accept design reports including certification to CSA N285 and ASME PVC with Appendix XXIII qualifications including PEO registration.  
• Working with ASME PVS Subsections NB, NC, ND and NF of Section III with both mandatory and non-mandatory appendices.
• Perform class 1, 2, 3 and B31.1 piping stress analysis for dead-weight, thermal, seismic, waterhammer, dynamic analyses and fatigue evaluation.
• Working with a multi-disciplined team of engineering and technical specialists to support the operation of various systems.
• Developing and supporting the execution of projects in compliance with the industry’s demanding set of regulations and standards.
• Other duties as required are specified by the Section Manager.

QUALIFICATIONS 

• Bachelor’s degree in mechanical engineering. Master’s or PhD in Mechanical Engineering preferred
• Experience and ability as a team player to understand and manage the interrelationships of various internal and external groups to facilitate objectives and ensure projects satisfy stakeholder requirements.
• Strong written and verbal communication skills and must be comfortable leading meetings and giving presentations.
• Have experience in a fast-paced, challenging work environment where showing initiative and self-motivation are assets, with a proven track record on delivering results.
• Sound knowledge of ASME PVC with emphasis on Subsections NB, NC, ND of section III with both mandatory and non-mandatory appendices, Section VIII and Criteria of Section III for Design Analysis.  
• Experience with stress analysis of vessels, fuel bundles, and/or reactor structures
• Experience with dynamic analysis (includes flow induced vibrations, seismic loads, impact loads, other time dependent loads, fluid-structure interaction, acoustic-structure coupling, random excitations).
• Knowledge and experience in computer programming is required for engineering applications (i.e., Python, C++, C and/or Fortran).
• Familiarity with mechanical analysis of pumps, motors, and generators would be an asset. Familiar with the Pipe-Flow program would be an asset.
• Familiarity with PEO Guidelines on use of engineering software and CSA requirements for management and qualifications of analytical software (i.e., CSA N286 and N286.7) would be an asset.
• Candidate must be a fully licensed engineer in the province of Ontario or be eligible to be licensed in the Province of Ontario.

The successful candidate will exhibit uncompromising integrity and commitment to upholding corporate values, and the OPG Code of Business Conduct. 

OPG is committed to fostering an inclusive, equitable, and accessible environment. If you require accommodation during the application or interview process, please contact AODA@opg.com.  

What makes a career at OPG different?
With operations across Ontario and the United States, OPG is one of the most diverse power producers in North America. As the largest generator in Ontario, we meet approximately 50% of the province’s electricity needs, largely from low-carbon sources like nuclear and hydro.  

As we work to achieve our vision of Electrifying life in one generation, OPG and our family of companies are also helping advance the development of new low-carbon technologies such as Small Modular Reactors (SMRs), refurbishment projects, and electrification initiatives to help power the growing demands of a growing economy. Join OPG and make history. 

 
Please submit your application online at jobs.opg.com.  OPG thanks all those who apply; however, only candidates considered for an interview will be contacted. 

LI-Hybrid 

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The base salary range considers many factors including, but not limited to experience, education, and training, including any collective agreement requirements for union represented positions. It is not typical for the salary to be offered near the top of the range, and salary is dependent on numerous factors. For management roles, the base salary range does not represent the total compensation package. The total compensation package for regular full-time management roles includes pay-for-performance programs for annual and medium time periods. Maintaining a high-performance culture and excellence is a core expectation of every member of our leadership team and is rewarded through the established compensation framework.

OPG is committed to employment equity. As such, we encourage applicants from equity-seeking communities (Indigenous Peoples, racialized persons, persons with disabilities, and women). We strongly believe that alleviating the under-representation of equity-seeking individuals will create a stronger OPG team and allow us to better serve the needs of our diverse communities.

In order to fulfill the above-mentioned purpose, priority in hiring may be given to qualified persons who self-identify as a member of equity-seeking groups as identified in the application process. This initiative constitutes a special program under the Human Rights Code/Canadian Human Rights Act.