Senior IT Systems Administrator

Role:
Full-time, on-site (5 days/week)

Location:

Etobicoke, Ontario (Toronto)

Comp: $90,000-$110,000 base + bonus + benefits

A profitable, privately owned, growing B2B company in the industrial space. Proudly Canadian and entrepreneurial, serving business customers across North America.

With under 100 employees and a small, hands‑on IT function, we're scaling while keeping a practical, no-politics, get‑it‑done culture.

Technology should make the business run better, not just keep the lights on.

This role reports to the IT Director. It's a lead-level role with no direct reports, with occasional travel between our Ontario sites.

Here's how your time will generally split (actual time will vary weekly):

• Business Applications & ERP Support (about 40%): Tier 2/3 support for our ERP and CRM, maintaining an internal quote‑generation system that pulls from ERP data. Planning upgrades/testing. Key tech:
  Epicor Prophet 21, Salesforce, SQL, Fivetran / Azure Data Factory

• Infrastructure and Networking (25%): Ensuring that switches, wireless, VPN, servers, and backups are healthy across our sites. Key tech:
  Ubiquiti Uni Fi, virtualization, backup platforms

• Microsoft 365 and Cloud (20%): Running the tenant, access and compliance policies, user onboarding/offboarding and device management, plus SaaS licences and renewals. Key tech:
  Microsoft 365 (Exchange Online, Teams, SharePoint, Intune, Entra ), Azure

• Security and Voice (15%): Triaging security alerts, tuning policies against Secure Score, and running the phone system end to end. Key tech:
  Microsoft Defender, Teams Phone (Direct Routing, call queues, E911)

Note:

We're planning to onboard an external MSP this year for first‑response support and after‑hours monitoring; you'll be the internal technical lead and escalation point.

IT projects are a key part of the role: leading upgrades end to end, guiding software and vendor decisions, and helping the business adopt AI tools safely.

You're a Senior IT Generalist with deep roots in systems administration, equally comfortable in an ERP workflow, a network dashboard, and a Microsoft 365 tenant.

You take ownership of outcomes rather than waiting for direction. You document what you build, explain trade‑offs in plain language, and the business trusts your judgment on technology.

• Strong experience administering Microsoft 365 (Exchange Online, Teams, SharePoint, Intune, Entra ), including Conditional Access, DLP, and sensitivity labels

• Hands‑on ERP administration: users, roles, module setup, master data, upgrades, and UAT (Epicor Prophet 21 or similar tools like SAP, Net Suite, MS Dynamics)

• Experience managing networks end to end (VLANs, switching, wireless, routing, VPN, DNS/DHCP), plus servers, virtualization, and tested backup and recovery

• Security operations experience: triaging Defender alerts, tuning identity and endpoint policies against Secure Score, and supporting audits

• Experience administering Microsoft Teams Phone (Direct Routing/SBC, call queues, auto attendants, E911)

• Experience managing IT Systems for an office of 50+ staff

• Track record leading IT projects and system upgrades from planning through rollout

• Experience managing vendors and an MSP relationship: escalations, SLAs, SaaS licences and renewals, and software purchase recommendations

• Practical experience rolling out or governing AI tools (such as Microsoft Copilot) with the right data and access controls

• 8+ years in IT systems administration or infrastructure roles (Senior level)

• Post‑secondary diploma or degree in IT, Computer Science, or a related field, or equivalent hands‑on experience

• Scripting and automation experience (Power Shell, Microsoft Graph)

• Comfort writing SQL…