Senior System Administrator

Groupe Leclerc • Brockville, Ontario, Canada • Posted March 16, 2026

Location Brockville, Ontario

Job Type Full-time

Category Computer Occupations

Posted March 16, 2026

We are seeking a highly qualified Senior System Administrator, known for their discipline, autonomy, and initiative. As a key member of our team, you will play a strategic advisory role in architectural decisions while actively contributing to the continuous improvement of our technological environments. You will be involved in the comprehensive management of our physical, virtual, and cloud infrastructures, working closely with other teams to ensure system performance, security, and reliability.
Responsibilities:
Make critical decisions regarding system architecture with precision and strategic insight
Manage and maintain Windows and Linux servers with a focus on reliability and performance
Administer and optimize cloud services (Azure, AWS) independently
Handle identity and access management using Entra and Active Directory
Supervise and configure Intune for device and server management
Ensure network security and adminis...
            

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