First officer Jobs in Ajax, ON

Status: Regular Full Time

Working Conditions: Hybrid

Education Level: Bachelor’s degree in Engineering (Mechanical, Electrical, Chemical, Nuclear, Civil, or related discipline).

Base Location: Oshawa, ON

Shifts(s): Days

Travel: 10%

Deadline to Apply: March 16, 2026

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 a dynamic, strategic and results-driven professional to join our team in the role of Senior Technical Engineer/Officer.

Reporting to the Manager of Engineering, the Senior Technical Engineer/Officer will provide expert technical oversight and guidance, lead multi-disciplinary teams, and collaborate with internal and external stakeholders to deliver on OPG’s commitment to operational excellence, safety, and innovation.

KEY ACCOUNTABILITIES

• Lead, coordinate, and execute complex engineering projects and technical evaluations in support of the commissioning, operation, and maintenance of nuclear facilities and systems.
• Manage and improve the health and performance of assigned systems, including trending, troubleshooting, field inspections, and reliability analysis.
• Ensure compliance with all regulatory and licensing requirements, codes, and standards (e.g., CSA, ASME, IEEE, CNSC, REG DOCs), and provide oversight of the Safe Operating Envelope (SOE) and operational safety requirements.
• Provide design engineering support, prepare and review technical specifications, design calculations, and modification packages as required for civil, mechanical, electrical, or I&C systems.
• Support and lead inspection and maintenance programs, analyze plant/component data, identify trends, and recommend strategies for life-cycle management and component health improvement.
• Lead engineering projects from initiation to closeout, including planning, budgeting, procurement, vendor oversight, and field issue resolution.
• Work closely with Operations, Maintenance, Project Management, vendors, and regulatory bodies to ensure seamless integration and optimization of processes and successful project delivery.
• Develop, review, and optimize engineering methodologies, maintenance strategies, and documented processes to reflect industry best practices and drive operational excellence.
• Provide expert advice, complex troubleshooting, and technical solutions to emergent and challenging problems.
• Support the development and mentorship of junior engineers and technical staff.

QUALIFICATIONS

• Bachelor’s degree in Engineering (Mechanical, Electrical, Chemical, Nuclear, Civil, or related discipline). Master’s or Ph.D. considered an asset; P.Eng is preferred
• Minimum 2 years of relevant engineering experience, preferably in the nuclear or power generation sector. Experience in other industrial/manufacturing sectors will be considered.
• Strong knowledge of applicable codes, standards, and regulatory requirements (e.g., CSA, ASME, IEEE).
• Proven ability to work independently and as part of a multi-disciplinary team, managing interrelationships among internal and external groups.
• Excellent written and verbal communication skills, with the ability to present complex technical concepts to diverse audiences.
• Strong analytical, organizational, and problem-solving skills.
• Commitment to safety, quality, and continuous improvement.
• Uncompromising integrity and commitment to upholding corporate values and the OPG Code of Business Conduct.
• 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 selection 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 https://jobs.opg.com/. OPG thanks all those who apply; however, only candidates considered for an interview will be contacted.

#LI-Hybrid

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.