Senior System Administrator (Wintel)

Who we are

Gildan is a leading apparel manufacturing company, with a strong portfolio of brands, including Gildan®, American Apparel®, Comfort Colors®, GOLDTOE®, Peds®, and under the Under Armour® brand through a sock licensing agreement. With close to four decades of developing global manufacturing expertise, Gildan is one of the world’s most efficient, ethical, and sustainable apparel manufacturers. Founded in Canada, Gildan operates out of roughly 30 locations worldwide and sells its products in 60+ markets globally. Together with its 50,000+ employees, Gildan operates with a proven commitment to industry-leading Environmental, Social, and Governance (ESG) practices throughout its supply chain in accordance with its comprehensive ESG program embedded in the Company's long-term business strategy. More about the company at gildancorp.com.

The opportunity

We are seeking a Senior System Administrator (Wintel) to architect, govern, and secure our localized and global IT infrastructure as a primary Subject Matter Expert (SME). This hybrid role requires technical ownership across a varied portfolio, including on-premises Microsoft servers, Microsoft Azure cloud services, VMware virtualization, and localized manufacturing systems (MES). In addition to defining daily infrastructure health alongside global Wintel teammates, you will act as the principal point of contact for internal audits, major incidents, technical mentorship, and system security compliance.

The role

• Global Server Infrastructure: Lead and collaborate closely with the Global Wintel team to architect, implement, maintain, and troubleshoot physical and virtual architectures, including Dell/Cisco compute servers, enterprise VMware environments, IBM Flash Storage, Etc.
• Core Microsoft Administration: Act as the definitive enterprise subject matter expert for the local and corporate Microsoft ecosystem, designing and maintaining Active Directory (AD), DHCP, DNS, SharePoint, and core File/Print server infrastructure.
• Hybrid Azure Cloud Support: Architect, administer, and optimize our growing Microsoft Azure Cloud footprint, manage Virtual Machines (VMs), Azure SQL Managed Instances, and various interconnected cloud resources for peak performance and cost-efficiency.
• Data Protection & Disaster Recovery: Own enterprise backup solutions utilizing Commvault; define baseline health metrics, oversee daily backup compliance, and manage lifecycle protocols, including securing and sending physical tapes to offsite locations.
• Enterprise Patching & Security: Establish and execute monthly systems patching lifecycles across local physical servers, cloud-hosted virtual machines, corporate workstations, and specialized MES (Manufacturing Execution Systems), ensuring strict compliance.
• Manufacturing Systems (MES) Support: Drive the setup, continuous baseline maintenance, and operational support of local MES to prevent production downtime and ensure seamless plant floor integration.
• Vendor & Lifecycle Management: Partner with third-party technical vendors for tier-3 platform support. Direct management on localized IT budget requirements and lead strategic vendor service evaluations and contract negotiations.
• SCCM / MECM Imaging: Oversee the local endpoint environment using Microsoft SCCM/MECM, working in tandem with the global team to maintain, build, deploy, and support the standardized corporate image alongside specialized package creation.
• Cross-Functional Collaboration: Partner with the Operations Center to build and improve automated infrastructure monitoring. Provide strategic technical assistance and leadership to varying application and infrastructure project groups.
• Mobility: Flexibility to travel between localized operational facilities as required.

The requirement

Knowledge & Professional

Experience

• BSc In Computer Science and Engineering or similar degree from reputed public or private university.
• 8+ years of hands-on experience engineering and administering Microsoft Windows Server environments (specifically including Windows Server 2016, 2019, 2022, and 2025).

Attributes

• Virtualization Mastery: 10+ years of technical experience configuring and supporting VMware ESXi and vCenter deployments (versions 6.x, 7.x, 8.x and 9.x).
• Cloud Infrastructure: 10+ years of operational experience managing workloads, compute, and services within the Microsoft Azure cloud environment.
• Directory & Network Services: 10+ years of comprehensive experience with Active Directory architecture, group policies, DNS, DHCP, SharePoint configurations, and enterprise file and print server management.
• Endpoint & OS Knowledge: 10+ years of advanced knowledge handling modern Microsoft client operating systems, specifically paired with deep experience supporting SCCM task sequences , image deployments, and package maintenance.
• Data Management: Proven, direct experience managing Commvault software architectures coupled with physical Tape Library rotations.
• Industrial IT: Demonstrated experience supporting specialized industrial environments or Manufacturing Execution Systems (MES) .
• Communication & Collaboration: Excellent professional verbal and written communication skills in English . Must be highly self-motivated and capable of operating autonomously while remaining a cohesive teammate within local and global circles.
• Project & Time Management: Exceptional organizational skills with a proven track record of coordinating multiple complex tasks simultaneously, prioritizing active workloads, and meeting tight organizational deadlines.
• Collaboration: Proven ability to work cross-functionally with Infrastructure, Business Intelligence (BI), and Development teams across international sites.
• Operational Flexibility: Flexibility and willingness to participate in a rotational, on-call framework to support a 24/7 global manufacturing operation

What's in it for you?

• Join a publicly traded company dual-listed on NYSE and TSX with great potential
• Be part of a workplace where meaningful connections and teamwork are celebrated
• From local to international, be ready to work alongside a diverse group of colleagues
• Benefit from mentorship and continuous development opportunities
• Take advantage of our attractive benefits packages

You don't meet all criteria outlined above? Include your transferrable skills and unique experience in your application!

We thank all applicants for their interest, however only those selected for interviews will be contacted.

Come as you are:

Join a company that recognizes the importance of diversity, equity, and inclusion to create a successful and collaborative work environment. As an equal-opportunity employer, we value and embrace all the characteristics that make you uniquely you and seek to provide everyone with an equal chance to succeed. Because equity and inclusion matter at Gildan.