M365 Exchange Administrator

**Location**:Pickering, ON, CA, L1W 4A7

**Req ID**:52484

**Status**:Regular Full Time
**Working Conditions**: Hybrid
**Education Level**:4 year University education in Computer Science or equivalent education.
**Base Location**:Oshawa, ON
**Shifts(s)**:Days
**Travel**:10%
**Deadline to Apply**: August, 15, 2025
**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 M365 Exchange Administrator.
- The scope of related information technology may include hardware, software, and operational processes related to any or all of: computers, peripheral equipment, networks, data communications, and office equipment. Provide consultative, advisory, training and educational services, and act as a team leader on complex activities.

**KEY ACCOUNTABILITIES**
- Exchange Administration: Oversee all aspects of Exchange Online, including mailbox management, distribution groups, shared mailboxes, mail flow rules, retention policies, spam and malware filtering, and hybrid configurations. Manage accounts and permissions within the Microsoft 365 and Exchange admin centers, and Azure Active Directory, ensuring compliance with organizational policies. In-depth knowledge of Exchange Server versions, including installation, configuration, and troubleshooting. Develop and maintain PowerShell scripts for automation of Exchange and M365 administrative tasks, improving efficiency and consistency.
- Support & Troubleshooting: Provide expert-level support for Exchange issues. Assist, and provide guidance to users and line management, both within and outside of the division. Serve as a backup resource for other M365 services (Teams, SharePoint, OneDrive, etc.), assisting end-users and collaborating with other administrators as needed.
- Security & Compliance: Implement and monitor security measures for Exchange, including anti-phishing, DLP, eDiscovery, retention policies, and multi-factor authentication. Support organizational compliance initiatives across all M365 services.
- Monitoring & Reporting: Utilize Microsoft 365 admin tools and PowerShell scripts to monitor system health, execute purges, generate usage and performance reports, and proactively address potential issues or updates which may impact the tenant. Monitor the effectiveness and efficiency of use of products, systems, or databases in production, and recommend corrective actions.
- Incident Response & Problem Management: Resolve emergency problems under time constraints, identify latent (underlying or recurring) problems, and implement changes or workarounds to eliminate or mitigate their impact. Complete root cause analysis for major incidents and prepare detailed written reports documenting findings and corrective actions.
- Collaboration & Backup Support: Work closely with other M365 administrators (SharePoint, Teams, OneDrive, Power Platform) to provide backup coverage, share knowledge, and ensure continuity of all M365 services during absences or peak workloads.
- Continuous Improvement & Documentation: Stay up-to-date with the latest M365 features and best practices. Create and maintain comprehensive documentation for Exchange administration and related processes. Advise and assist users concerning the production use of systems, products, or databases. Implement and document enhancements and changes to meet new user needs.

**QUALIFICATIONS**
- Requires a four-year university education in computer science or equivalent education.
- Ability to work collaboratively and provide backup support to other administrators, and familiarity with other M365 services (Teams, SharePoint, OneDrive, Power Platform).
- Relevant Microsoft certifications (e.g., Microsoft 365 Certified: Messaging Administrator Associate, or other relevant to Administrator Expert) are highly desirable.
- Requires experience to be able to define users' information technology requirements for all but the most complex problems, and to design, develop, acquire, and implement the required systems, databases, and information technology products and related services.
- Requires experience to understand new and existing information processing concepts, computer and communications equipment, and software.
- Requires a knowledge of the principles of computing equipment, methods, systems analysis and design, data management, work simplification, communicatio