← Back to opportunities

Sr. Administrator Unix/Linux

📍 Location
montreal
⏰ Job Type
Full-time
📅 Posted
June 04, 2026

About the Role

Location

Montreal, Quebec, CA, H3A 1L6

Department

IT Infrastructure (IT06)

Location

Downtown Montreal (hybrid)

Reports To

Manager, Systems Administration

Overview

The mission of the Infrastructure and Operations, Centre of Expertise group is to make Domtar a world-class customer focused IT organization and effective business partner; become a reference for operating efficiency and be an IT employer of choice.

Responsibilities

  • Platform Administration: Install, configure, patch, and maintain Linux/UNIX operating systems (e.g., RHEL, Oracle Linux, HP-UX), administer physical, virtual, and cloud-based servers, manage system lifecycle activities including builds, upgrades, and decommissioning, perform capacity planning and performance tuning.
  • Availability, Reliability & Operations: Ensure high availability, resiliency, and recoverability of systems, implement and maintai...

Ready to Join Through a Referral?

Apply now and get connected directly with the hiring team

Apply for this Position