Position title: Sr. Systems Administrator, Linux & Unix
Location: Downtown Montreal (hybrid)
Reports to: Manager, Systems Administration
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.
The Senior System Administrator is responsible for the design, implementation, operation, and stability of enterprise Linux/UNIX platforms supporting mission‑critical business services. This role provides advanced technical leadership, performs complex troubleshooting, and ensures systems meet availability, performance, security, and compliance requirements.
The position works closely with architecture, security, networking, storage, and application teams and acts as a senior escalation point for operational issues.
Job Responsibilities/Accountabilities:
Install, configure, patch, and maintain Linux/UNIX operating systems (e.g., RHEL, Oracle Linux, HP-UX)
Availability, Reliability & Operations
Develop and maintain automation using shell scripting, Python, or configuration management tools (e.g., Ansible, Puppet, Chef)
Storage, Backup & Networking
Leadership & Collaboration
(*) This is required since as part of this function, you will have to intervene with customers, partners and/or our American subsidiaries on a recurring basis, both orally and in writing.
Required Qualifications/Professional Experiences:
Preferred Qualifications/Professional Experiences/Years of Experience:
Strong knowledge of DR (Disaster Recovery), for SAP, Oracle and VMware environments, would be an asset;
Domtar is an equal opportunity employer. We invite women, Aboriginal peoples, persons with disabilities and members of visible minorities to apply.
Domtar makes products that people around the world rely on every day.
Serving more than 50 countries, we are a leading provider of a wide variety of fiber-based products including communication, specialty and packaging papers, market pulp and airlaid nonwovens. We make our products at manufacturing and converting facilities in the U.S. and Canada, with a focus on safety, quality, and sustainability.
Through our values of agility, caring and innovation, we constantly find better ways to serve our customers, support our employees and strengthen our communities.
Domtar’s principal executive office is in Fort Mill, South Carolina and Domtar is part of the Paper Excellence group of companies. To learn more, visit www.domtar.com.
