Senior Systems Administrator

Gertex Solutions is a packaging and distribution business based in Ontario, operating across the Gertex and Impak brands. Our small, technically deep IT team supports ERP, warehouse management, custom quoting tools, business intelligence and the infrastructure behind our operations.

As the primary technical resource for our business systems and IT environment, you will work with the IT Director and an external Managed Service Provider (MSP), serving as the internal technical lead and primary escalation point for day-to-day operations. The role spans ERP and CRM administration, infrastructure, Microsoft 365 and cloud platforms, integrations, internal tooling, security and voice operations.

This role suits a technically versatile senior professional who is comfortable configuring ERP workflows, managing Microsoft 365 and overseeing infrastructure, and who takes ownership of outcomes. The MSP handles first-response support and after-hours monitoring.

Occasional travel between Gertex sites may be required.

• Administer and maintain the P21 ERP system, including user management, role configuration, module setup, and master data integrity.
• Provide tier 2 and tier 3 application support, coordinating with vendors and escalating software defects where required.
• Manage and maintain the Impak/Gertex quote generation system, including integrations with ERP data sources.
• Plan and coordinate application upgrades, patches, and UAT with business stakeholders.
• Manage the Salesforce CRM platform, including configuration, user access, and reporting, working with the external Salesforce support group for enhancements and issue resolution.

• Manage the Ubiquiti Uni Fi network environment: switching, wireless, routing, and VPN - reviewing health and applying updates on a weekly to monthly cadence.
• Oversee server infrastructure, backup systems, and virtualisation platforms, ensuring availability and business continuity on a scheduled cadence.

• Administer the Microsoft 365 tenant:
  Exchange Online, Teams (including Teams Phone), SharePoint, One Drive, Intune, and Entra  / Azure AD.
• Manage conditional access policies, compliance configurations, DLP policies, and sensitivity labels.
• Oversee SaaS subscriptions: licence tracking, renewals, shadow IT identification, and vendor management.
• Manage Azure cloud resources including monitoring, governance, and security posture.

• Administer Microsoft Teams Phone including PSTN connectivity, voice routing, auto attendants, call queues, and E911 compliance.
• Manage number assignments, SBC/Direct Routing configuration, and call quality monitoring.

• Serve as the primary internal contact for the MSP on day-to-day security execution: receiving Defender alert escalations, directing triage, and enforcing access and endpoint policies.
• Review Microsoft Secure Score weekly and tune conditional access, endpoint, and identity policies accordingly.
• Support the IT Director on security projects, compliance initiatives, and audit preparation.

• Act as the primary internal technical escalation point from the MSP for all operational matters, including infrastructure, networking, connectivity, security, Microsoft 365 and Tier 2–3 voice issues.
• Review MSP escalations, direct resolution, and maintain runbooks to support MSP first-response quality.
• Collaborate with the IT Director on MSP SLA monitoring and service reviews.

• Post-secondary diploma or degree in information technology, computer science, or a related field - or equivalent hands‑on experience.
• At least five years of progressively…