Sr. Manager, System Administrator

Location: Montreal

Who we are
Gildan is a leading manufacturer of everyday basic apparel, with a strong portfolio of brands, including Gildan®, Hanes®, Comfort Colors®, American Apparel®, ALLPRO™, GOLDTOE®, Peds®, Bali®, Playtex®, Maidenform®, Bonds®, as well as Champion® which is under an exclusive licensing agreement for the printwear channel in the U.S. and Canada.

Gildan owns and operates vertically integrated, large-scale manufacturing facilities which are primarily located in Central America, the Caribbean, North America, and Asia. Gildan operates with a strong commitment to industry-leading labour, environmental and governance practices throughout its supply chain in accordance with its comprehensive ESG program embedded in Gildan's long-term business strategy. Together with our global team of dedicated employees, Gildan is united in its vision of Making Apparel Better®.

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The opportunity
We are seeking a skilled and proactive Sr. Manager, System Administration to oversee the strategy, deployment, maintenance, and security of our Windows Server and Intel-based physical and virtual infrastructure. In this role, you will lead a global team of systems engineers, manage vendor relationships, and ensure maximum uptime, scalability, and security for our enterprise-level Wintel environment. This is a dynamic opportunity to drive technical excellence and shape the future of our infrastructure landscape.

Department: IT Infrastructure

Reporting Into:
Director of Infrastructure

The role

Manages the global engineering team responsible for backups, virtualization, Wintel, and storage design, implementation, and 24/7 operational support.

Ensures continuous, secure operations by owning ITIL procedures, patching cycles, performance metrics, root cause analysis, disaster recovery plans/tests, and security controls for both in-house and cloud-based services.

Owns the annual Wintel infrastructure budget by forecasting and maintaining capital and operational expenditures (CAPEX/OPEX), tracking monthly adherence, and identifying cost‑saving opportunities across hardware life cycles and software licensing renewals.

Manages strategic relationships with third‑party service providers, suppliers, and consultants, including vendor selection, contract evaluation, and critical incident escalation.

Collaborates directly with our PMO and cross‑functional IT teams to design, build, and implement robust, enterprise‑wide capabilities.

Partners with functional business areas to ensure all infrastructure solutions meet and scale with current and future business requirements.

Hires, trains, mentors, and evaluates system engineering talent, establishing clear performance expectations and fostering professional growth.

The requirements

Education & Experience:

A University degree in Information Technology; 12‑15 + years of experience in IT infrastructure/architecture, with a minimum of 5+ years in a supervisory or management role.

Core Technical Expertise:
Deep, hands‑on experience with the following enterprise technologies:
Operating Systems & Systems Management:
Windows Server (2016 through 2025), Active Directory, Group Policies, SCCM/MECM and Office 365 hybrid environments (One Drive, SharePoint, Exchange SE).

Virtualization & Storage: VMware (6.5 through 9.x), Pure Storage, IBM Metro Mirror, and VM stretch clusters.

Cloud Infrastructure, Networking & Security:
Strong experience in designing and operating enterprise Azure environments. Including Azure networking, hybrid connectivity, identity and Access Management, Workload Management, cloud security and operational governance.

Hardware Ecosystems: HP, Dell, IBM, Cisco UCS servers, UCS Fabric Interconnects (FI), and Brocade switches.

Avail…