Mechanical Technician - Welder

Status:  Permanent Full Time

Education Level: Minimum Grade 12 Diploma or equivalent, and Certification of Qualification (456A) or experience defined below

Base Location: Pickering , ON

Shift: Days and/or rotating shifts including nights, weekends and holidays

Travel: 10%

Deadline to Apply: May 11, 2026

Salary Range: $42.82 - $66.22 per hour 

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 a dynamic, strategic and results-driven professional to join our team in the role of Mechanical Technician - Welder .

This position, reporting to the Supervisor, Maintenance , involves joining pieces of metal or manufactured parts using metal filler and heat and/or pressure. The role includes constructing structures and repairing broken or cracked components according to specifications. Additionally, it requires carrying out specialized processes such as welding studs and brazing.

KEY ACCOUNTABILITIES 

• Lays out, cuts, and forms metals to specifications
• Fits sub-assemblies and assemblies together and preparing assemblies for welding
• Uses three major types of welding: arc, gas, and resistance
• Uses various welding and cutting processes to join structural steel and cut metal in vessels, piping and other components
• Fabricates parts, tools, machines and equipment
• Joins parts being manufactured, builds structures and repairs damaged or worn parts
• Controls for quality before, during and after welding.

** Note that candidates who are selected to proceed in the recruitment process will be required to complete  an online aptitude test and an in-person welding test. * *

EDUCATION

• Have a minimum Grade 12 education or equivalent

QUALIFICATIONS

• Hold a valid Certificate of Qualification (456A) or have 5+ years’ experience Pipe/welding with GTAW process on stainless steel & carbon steel
• Preference given for post-secondary education (Union Hall and/or College program) in welding, but not mandatory
• Must be able to pass a 6G open root pipe test using the GTAW & SMAW processes (F6-F4).  The test specimen will then be subjected to NDE examination (non-destructive evaluation) consisting of visual, radiographic and destructive inspections for evaluation
• 5+ years’ experience, transferable CWB
• Willing to work rotating 12-hour shifts (weekends/holidays)
• Eligible to work in Canada and Canadian equivalency for foreign education, if applicable
• Strong problem-solving, communication, interpersonal, and organizational skills; tech/computer comfortable; self-starter
• Safety/environmental compliance focus; Health and Safety experience an asset
• Technical: documentation/records, interpret drawings/manuals/tools, troubleshoot
• Radiation/contamination control knowledge; pass Radiation Protection training/exams
• Physical: heights/harness, confined spaces, hot/cold; lift 50 lb; forklift/elevated work platforms; valid Ontario G license is an asset

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 selection process, please contact View email address on jobs.opg.com

What makes a career at OPG different?

With operations across Ontario, 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 . OPG thanks all those who apply; however, only candidates considered for an interview will be contacted.

#LI-Onsite

Please note: All job postings at OPG are to fill existing vacancies within our organization. 

OPG may use artificial intelligence (AI) tools as part of the applicant screening process. However, applications will also be reviewed by a member of our Recruitment team to ensure a fair and thorough assessment.

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.