Engineer enterprise networks, cybersecurity, and cloud infrastructure at OSL Retail Services from the corporate office in Mississauga, Ontario.

As Senior Systems Engineer, you will manage corporate LAN, WAN, wireless, firewall, VPN, and cloud networking environments. The work includes Windows, Linux, Microsoft Azure, Fortinet infrastructure, and complex technology projects. You will design, implement, secure, troubleshoot, and evolve systems while supporting IT service improvement.

Key Responsibilities

Administer and harden Fortinet firewalls, switches, access points, and VPNs

Manage on-premises and Azure cloud infrastructure environments

Administer Windows, Linux, and Azure-based application servers

Monitor capacity, performance, security, and IT landscape changes

Document configurations,



mappings, processes, and problem management records

Requirements

Five or more years designing complex enterprise network environments

Expertise with firewalls, switches, access points, VPNs, and WAN solutions

Advanced Windows and Linux administration and troubleshooting experience

PowerShell, Bash, or Python scripting and automation experience

Microsoft Azure and Fortinet certifications strongly preferred

Apply senior network engineering expertise across Fortinet, Windows, Linux, Azure, cybersecurity, and enterprise infrastructure at OSL.

📌 Senior Network Systems Engineer (Winnipeg)
🏢 OSL Retail Services
📍 Winnipeg