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Job Post Details

Ontario Power Generation logo

Lead Microsoft 365 Platform Administrator - job post

Ontario Power Generation
4.0 out of 5 stars
Oshawa, ON L1H 8P7
$2,751.92–$3,227.88 a week - Full-time
You must create an Indeed account before continuing to the company website to apply

Job details

Pay

  • $2,751.92–$3,227.88 a week

Job type

  • Full-time

Shift and schedule

  • Day shift

Location

Oshawa, ON L1H 8P7

Full job description

Location: Oshawa, ON, CA, L1H 8P7
Req ID: 57394
Status: Permanent Full Time
Education Level: Four-year university degree in Computer Science, Information Technology, Information Systems, Engineering, or a related discipline.
Base Location: Oshawa, ON
Shift: Days
Travel: None
Deadline to Apply: July 21, 2026
Salary Range: $2,751.92 - $3,227.88 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 Lead Microsoft 365 Platform Administrator.

Reporting to the Section Manager, Microsoft Application Services, this position serves as the senior technical subject matter expert for OPG's Microsoft 365 platform, including SharePoint Online, Teams, OneDrive, Microsoft Copilot, Power Platform (Power Apps and Power Automate), and Exchange Online.

The successful candidate will provide advanced technical expertise, platform governance, operational support, security administration, and service optimization across the Microsoft 365 ecosystem. They will act as the escalation point for complex technical issues, investigations, data analysis, automation initiatives, and platform enhancements while ensuring a secure, reliable, and well-governed environment.

This role requires a strong focus on knowledge sharing, technical mentorship, and collaboration, serving as a trusted advisor and resource for team members, stakeholders, and business partners. The successful candidate will continuously evaluate emerging Microsoft capabilities, product updates, and best practices to ensure OPG maximizes value from its Microsoft 365 investments.

KEY ACCOUNTABILITIES
  • Act as the senior technical authority and escalation point for Microsoft 365 services, providing expertise and guidance for complex operational issues, investigations, and platform challenges.
  • Administer, support, and enhance Microsoft 365 services, including SharePoint Online, Teams, OneDrive, Microsoft Copilot, Power Platform, and Exchange Online.
  • Lead technical investigations, data analysis, and root cause assessments related to platform incidents, security events, service performance issues, and user-reported concerns.
  • Design, implement, and maintain governance, security, compliance, and role-based access control (RBAC) standards across Microsoft 365 services.
  • Monitor and assess Microsoft product updates, roadmap changes, licensing impacts, and new platform capabilities, providing recommendations and implementation guidance.
  • Develop and maintain automation solutions using PowerShell, Microsoft Graph, Power Automate, and other supported technologies to improve operational efficiency and service delivery.
  • Collaborate with business stakeholders, cybersecurity teams, infrastructure teams, and application teams to ensure successful integration and adoption of Microsoft 365 services.
  • Perform other duties as required in support of organizational objectives.

QUALIFICATIONS
  • Four-year university degree in Computer Science, Information Technology, Information Systems, Engineering, or a related discipline.
  • 6+ years of progressive experience administering and supporting Microsoft 365 services in a medium-to-large enterprise environment.
  • Experience managing Microsoft 365, security, governance, compliance, permissions, and RBAC models.
  • Experience performing technical investigations, auditing, reporting, and data analysis within Microsoft 365 services.
  • Demonstrated ability to serve as a trusted technical advisor and subject matter expert.
  • Strong analytical and problem-solving skills, with the ability to investigate complex issues and identify practical solutions.
  • Excellent communication and interpersonal skills, with the ability to translate technical concepts for both technical and non-technical audiences.
  • Proven ability to mentor, coach, and support team members through knowledge sharing and collaborative problem solving.

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.
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.

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