Lead Network Architect (Montreal, Canada)

We are seeking an experienced Senior Network Architect to lead the target-state design of enterprise network infrastructure as part of a major data center exit and cloud migration initiative.

• Design target-state enterprise network architecture, including routing, switching, segmentation, firewall policies, and connectivity topologies.
• Lead network discovery across Cisco Meraki and other enterprise networking environments and translate findings into future-state designs.
• Define network flows, dependencies, segmentation requirements, hub-and-spoke connectivity, and migration constraints.
• Produce high-level and low-level network designs, IP addressing plans, and traffic flow documentation.
• Design hybrid connectivity between on-premises data centers and AWS/Azure cloud environments.
• Act as the technical design authority, reviewing and approving network configurations, migration approaches, and cutover plans.
• Provide technical guidance and escalation support to network engineers and SMEs.
• Design and rationalize firewall policies and security controls in collaboration with security teams.
• Support complex network migration, testing, cutover, decommissioning, and production transition activities.
• Review migration runbooks, as-built documentation, and technical deliverables for enterprise standards.

• 11+ years of enterprise network engineering experience.
• 4+ years in a Network Architect, Lead Engineer, or technical architecture role.
• Strong enterprise routing and switching experience with BGP, OSPF, VLANs, VRFs, and Spanning Tree.
• Strong experience with firewall architecture, policy design, rule migration, and rule-base rationalization.
• Experience designing hybrid cloud connectivity using AWS and/or Azure.
• Knowledge of AWS networking services such as VPC, Transit Gateway, Direct Connect, or similar cloud connectivity solutions.
• Experience with data center migrations, network cutovers, and production infrastructure transitions.
• Experience with load balancing and enterprise data center network services.
• Strong stakeholder management, technical presentation, and documentation skills.
• Experience working as a technical escalation point and design authority for distributed engineering teams.

• CCNP, CCIE, JNCIP, or equivalent senior-level networking certification.
• Experience with network automation using Ansible, Python, or Terraform.
• Experience with SD-WAN or software-defined data center networking.
• Cisco Meraki discovery and architecture experience.