Performance engineer Jobs in Ajax, ON

Status: Permanent Full Time

Working Conditions: Hybrid

Education Level: 4-Year University education in Computer Science, Software Engineering, or a related discipline.

Base Location: Oshawa, ON

Shift: Days

Travel: 10%

Deadline to Apply: May 8, 2026

Salary Range: $1,664.34 - $2,583.30 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 Junior Quality Engineer (Developer).

Reporting to the Senior Manager Projects, this position is responsible to Design, build, and maintain automated UI and API test suites (using Java/C#/JavaScript/Python, Playwright/Selenium/Tosca, and TestNG/Cucumber) and integrate them into CI/CD pipelines (GitHub) while managing execution and traceability in tools like Azure Test Plans/ALM/qTest.

KEY ACCOUNTABILITIES

• Execute predefined automated tests across web, API, and backend layers (including smoke and regression during release cycles), and report clear, timely results to the team.
• Support automation framework setup and upkeep by helping configure test environments, preparing/validating test data, and contributing to basic automation scripts while building proficiency with tools like Selenium, Cypress, JUnit, Postman, GitHub Actions, and Azure DevOps.
• Document and track defects found during manual and automation runs, maintain accurate test logs/reports for traceability, and collaborate with QA leads/developers while participating in Agile ceremonies to align testing with sprint priorities and improve coverage.
• Develop and maintain automated test solutions using programming languages such as Java, C#, JavaScript, and Python.
• Build and execute UI and API automation using tools/frameworks including Playwright, Selenium, Tosca, and REST-based testing utilities.
• Apply TDD/BDD practices and implement test suites using frameworks such as TestNG and Cucumber.
• Integrate automated tests into CI/CD and DevOps pipelines, supporting continuous testing via GitHub workflows.
• Use version control and test management platforms (e.g., Azure Test Plans, ALM/Quality Center, qTest) and participate in the interview process, which may include multiple rounds and a take-home/assignment component.

QUALIFICATIONS

• 4-Year University education in Computer Science, Software Engineering, or a related discipline.
• Over 2 years of experience in test automation (UI/API) using Java/C#/JavaScript/Python, Playwright/Selenium/Tosca, BDD/TDD (TestNG/Cucumber), CI/CD with GitHub, and test management tools (Azure Test Plans/ALM/qTest).
• Proficiency in at least one programming language used for automation: Java, C#, JavaScript, or Python.
• Hands-on experience building and running UI automation using Playwright, Selenium, and/or Tosca.
• Hands-on experience with API automation and REST testing tools/utilities.
• Working knowledge of TDD/BDD and implementing automated tests with TestNG and/or Cucumber.
• Experience integrating automated tests into CI/CD or DevOps pipelines, including GitHub workflows/actions.
• Familiarity with version control and test management/defect tracking tools such as Azure Test Plans, ALM/Quality Center, or qTest.

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, 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.