Build, Improve, and Own the Technology Behind a Growing Business

Looking for a Systems Administrator role where you can work with a variety of technologies, solve real problems, and keep building your skills?

Our client is a well-established North American organization with more than 35 years of growth and multiple locations across the region. They're looking for a hands‑on Systems Administrator to join their IT team and help keep their systems reliable, secure, and running smoothly.

You’ll work across Windows Server, Active Directory, PowerShell, virtualization, networking, backups, and monitoring, while also getting involved in infrastructure projects, automation, upgrades, and day-to-day technical support.

Who You Are:

You're the person people rely on when something goes beyond a basic IT issue

You enjoy getting to the root of a problem rather than simply applying a temporary fix

You're comfortable working across servers, systems, networks, applications, and users, and you know how to balance technical priorities with the needs of the business

You take ownership of the systems you manage

You're hands‑on, curious, and naturally inclined to ask: “How can we make this work better?”

Work Type

Location: Brampton, ON (Fully On-site – 5 days a week in office)

Vacancy Type: This role is an existing vacancy

What You'll Do:

Administer and maintain Windows Server environments, ensuring availability, performance, patching, and operational stability

Manage Active Directory, including users, groups, permissions, organizational units, and Group Policy

Maintain core network services including DNS and DHCP, and troubleshoot authentication and connectivity issues

Develop and maintain PowerShell scripts to automate provisioning, administration, monitoring, reporting, and other repetitive tasks

Support and troubleshoot VMware and/or Hyper‑V environments, including virtual machine deployment, configuration, maintenance, and performance

Monitor infrastructure, identify potential issues proactively, and respond to system alerts and performance concerns

Manage and troubleshoot backup and recovery processes, investigate backup failures, and participate in disaster recovery planning and testing

Troubleshoot infrastructure and connectivity issues involving TCP/IP, VPNs, firewalls, DNS, DHCP, and related technologies

Provide escalation‑level support for complex systems and infrastructure issues

Support endpoint, hardware, and software deployments across the organization





Participate in infrastructure upgrades, migrations, technology deployments, and other IT projects

Apply security best practices across systems, access, patching, configuration, and infrastructure management

Maintain accurate technical documentation, system configurations, procedures, and operational runbooks

Work with technology vendors and internal stakeholders to investigate and resolve infrastructure issues

Identify opportunities to improve the reliability, security, performance, and efficiency of the IT environment

What We’re Looking For (Our Wishlist):

3+ years of experience in Systems Administration or a closely related infrastructure role, with hands‑on responsibility for supporting production IT environments

Proven experience administering Windows Server environments, including configuration, patching, performance monitoring, troubleshooting, and ongoing maintenance

Strong experience with Active Directory and Group Policy, including user and group administration, permissions, organizational units, and policy‑based configuration

Practical experience administering Microsoft 365, including user and license management, Exchange Online, identity and access, and troubleshooting core M365 services

Solid understanding of DNS and DHCP, with practical experience troubleshooting name resolution, addressing, authentication, and connectivity issues

Strong PowerShell skills, with experience developing and maintaining scripts to automate administration, provisioning, monitoring, reporting, and repetitive operational tasks

Hands‑on experience with VMware and/or Hyper‑V, including virtual machine provisioning, configuration, maintenance, and troubleshooting

Experience supporting backup and recovery environments, including monitoring backup jobs, investigating failures, performing restores, and contributing to disaster recovery processes

Strong understanding of networking fundamentals, with experience troubleshooting TCP/IP, VPN, firewall, and infrastructure connectivity issues

Experience with infrastructure monitoring and system maintenance,



with the ability to identify and address performance, availability, and capacity issues proactively

Strong troubleshooting and root‑causal analysis skills, with the ability to investigate complex issues across multiple systems and drive them through to resolution

Working knowledge of IT infrastructure security practices, including access control, patch management, secure configuration, and system hardening

Strong documentation and communication skills, with the ability to maintain technical documentation and work effectively with both technical and non‑technical stakeholders

Bachelor's degree in IT, Computer Science, or a related field, or equivalent practical experience

Experience with Azure/AWS, Linux, SCCM, Ansible, or multi‑site infrastructure is considered an asset

What Makes This Role Exciting?

Infrastructure Ownership: Take ownership of critical systems and contribute to the reliability, security, and performance of the infrastructure supporting the organization

Automation & Optimization: Identify opportunities to streamline administration and improve operational efficiency through PowerShell automation and process optimization

Technical Breadth: Work across a diverse infrastructure environment spanning Windows Server, Microsoft 365, virtualization, networking, backup and recovery, and security

Business Impact: Support technology that is integral to day‑to‑day operations across multiple locations, giving your work a direct and measurable business impact

Continuous Improvement: Contribute to infrastructure upgrades, migrations, deployments, and modernization initiatives while helping evolve the organization's IT environment

Salary: $70,000 - $75,000

Paid Time Off: Competitive vacation and personal days to support a sustainable work‑life balance

Health Benefits: Comprehensive advantages coverage designed to support your health and well‑being, with options to meet individual and family needs

Technical Growth: Exposure to a broad technology environment and the opportunity to contribute to projects that strengthen and modernize the organization's IT infrastructure

We’re proud to support diversity and inclusion.If you require accommodation during the hiring process, just let us know —we’re happy to help.

AI Use Disclosure
STACK IT uses AI‑enhanced tools to support initial candidate screening and interview note analysis. All assessments and hiring decisions remain human‑led.

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📌 Systems Administrator (Ontario)
🏢 STACK IT Recruitment
📍 Ontario