IT Senior System & Network Administrator

Montreal, QC | On-site

DART Aerospace

DART Aerospace is looking for an experienced IT Senior System & Network Administrator to support and evolve a critical IT infrastructure in a fast‑paced aerospace manufacturing environment.

This role sits at the intersection of systems, network, and cloud , with a strong focus on reliability, security, and performance.

What you'll be doing

• Maintain and optimize IT infrastructure (servers, networks, virtualization)
• Design and manage LAN/WAN, VPNs, firewalls, routing & switching
• Manage cloud and hybrid environments (Azure, AWS or similar)
• Monitor performance, troubleshoot issues, ensure high availability
• Implement cybersecurity best practices and data protection systems
• Support automation initiatives (PowerShell scripting)
• Collaborate with internal teams to re...