Software Engineer, Full Stack

Status:Contract (up to 36 months)

Education Level: Four-year university education in Computer Science Software Engineering or a related field.

Base Location: Oshawa ON

Shift: Days

Travel: 10%

Deadline to Apply: July 24 2026

Salary Range: $1764.34 - $2663.56 Per Week

Electrify your career and help build a brighter tomorrow.

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 seeking a high-performing product-minded Software Engineer Full Stack to help design and deliver modern scalable software solutions that power critical business capabilities. This role is ideal for an engineer who combines strong hands-on technical depth with sound judgment a bias for action and a commitment to engineering excellence.

Reporting to the Manager IT Product Delivery you will play a key role in building and evolving enterprise applications across the full stack with a primary focus on frontend development using React and TypeScript and backend services built 10 and C#. You will partner closely with product design architecture QA and business stakeholders to translate requirements into reliable secure and maintainable solutions.

The successful candidate is a strong collaborator who can independently drive delivery contribute to architecture and design decisions raise the quality bar through code reviews and best practices and continuously improve team velocity system performance and developer experience. Experience with Azure and cloud-native patterns is considered a strong asset.

KEY ACCOUNTABILITIES

• Design build test deploy and maintain high-quality full-stack software solutions using React 10 and C#.
• Own delivery of features end-to-end from technical design and implementation through testing release and post-production support.
• Contribute to architecture and system design decisions with a focus on scalability resiliency security performance and long-term maintainability.
• Build intuitive responsive and accessible user interfaces while ensuring clean integration with backend APIs and services.
• Develop and enhance backend services business logic and integrations to support reliable secure and efficient application workflows.
• Troubleshoot complex production issues perform root cause analysis and implement durable fixes that improve system stability and operational excellence.
• Elevate engineering standards through thoughtful code reviews technical documentation mentoring and active knowledge sharing across the team.
• Partner effectively with cross-functional stakeholders to clarify requirements manage technical trade-offs identify opportunities for improvement and deliver measurable business value.

QUALIFICATIONS

• Four-year university degree in Computer Science Software Engineering or a related discipline.
• Minimum 4 years of professional software development experience excluding co-op or internship experience.
• Strong hands-on experience building modern web applications with React and TypeScript.
• Strong backend development experience with C# ideally including experience with platforms such 10.
• Demonstrated understanding of software engineering fundamentals including domain-driven design object-oriented design design patterns clean code principles and secure coding practices.
• Experience designing and consuming RESTful APIs working with databases and integrating distributed systems or third-party services.
• Experience working in Agile delivery environments and collaborating effectively with cross-functional teams in a fast-paced setting.
• Experience with Azure services cloud-native development CI/CD pipelines containerization or DevOps practices 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

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 provinces 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.

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.