Infrastructure Lead

Job Role: Infrastructure Lead (Wintel / Linux)

Job Location: Mississauga, Canada

Job Description: We are seeking an experienced Infrastructure Lead to support and evolve a complex enterprise infrastructure spanning on premises hybrid cloud and virtualized environments. This role focuses on system stability, security, automation and operational excellence working closely with Infrastructure, Network, Security, GRC, DevOps and Application teams.

The ideal candidate will bring strong hands-on technical skills, a solid understanding of ITIL based operations and the ability to work independently in a multi-geography environment.

Key Responsibilities

Infrastructure Systems Management

• Support the deployment, configuration and day to day operation of Windows, Linux and hybrid cloud environments.
• Administer VMware platforms including ESXi, vCenter, HA, DRS and vMotion.
• End to end management of Backup and Storage solutions.
• Deploy, configure and maintain Azure Stack HCI, Azure Local clusters.
• Manage server hardware, SAN storage and backup platforms; perform hardware repairs and maintenance as required.
• Ensure high system availability, performance and capacity planning across environments.
• Manage and maintain Privilege Access Management (PAM) solutions end to end.
• Deploy, manage and enhance Managed File Transfer (MFT) solutions.
• Administer and scale VMware Horizon VDI environments, including pool creation and optimization.
• Identify opportunities to automate infrastructure operations and reduce manual effort.

Network Security

• Support server side network configurations including NICs, IP addressing, VLANs, routing, VPNs and load balancing.
• Work closely with Security teams to implement and maintain security best practices.
• Assist with vulnerability assessments, remediation activities and security audits.
• Manage identity and core services such as Active Directory, DNS, DHCP and Group Policy.
• Configure and report on authentication, access controls, logging and system performance.

Backup, Recovery & Business Continuity

• Support backup and disaster recovery (DR) solutions and operational processes.
• Assist with DR automation, validation and participate in scheduled DR testing.
• Ensure compliance with data protection, retention and backup standards.

Operations Support

• Troubleshoot and resolve system, application and performance issues.
• Support application deployment, installation and configuration activities.
• Collaborate with infra dev and project managers to lead infrastructure projects and initiatives.
• Act as an escalation point for advanced infrastructure and platform issues.
• Participate in on-call rotations and scheduled maintenance windows.
• Maintain service availability in line with defined SLAs.

Automation & Optimization

• Develop and maintain automation scripts using PowerShell, Python and Bash.
• Support configuration management and automation tooling.
• Monitor systems and assist with performance tuning and optimization.
• Leverage log monitoring and analytics tools for proactive issue detection.

Governance & Collaboration

• Ensure systems comply with organizational policies, standards, licensing and procedures.
• Operate within ITIL based processes including incident, problem and change management.
• Collaborate effectively with internal teams, vendors and stakeholders.
• Participate in DevOps practices and Git based workflows.
• Contribute to documentation, system improvements and operational runbooks.
• Assist with infrastructure cost estimates and effort analysis for projects.

Technical Skills & Experience

Required

Operating Systems

• Windows Server 2019, 2022, 2025 (advanced)
• Linux (basic to intermediate), including RHEL
• VMware ESXi, vCenter

Manage File Transfer Systems

• MoveIT IP, Switch, SFTP

Storage & Backup

• IBM SAN, iSCSI storage
• Networker, Data Domain

Identity & Core Services

• Active Directory, DNS, Route53, M365, BIND, NDS, DHCP, Group Policy

Automation & DevOps

• PowerShell, Python, Bash
• Git based workflows and exposure to configuration management tools

Monitoring & Security

• Log monitoring tools
• Understanding of Zero Trust principles

ITSM & ITIL

• Experience working with ITSM tools and ITIL processes

Preferred / Nice to Have

• Experience with Microsoft 365 (O365), Exchange, Teams, SharePoint
• Ex