Senior Data Center Network Engineer

Position: Senior Data Center Network Engineer

Location: Hybrid- Montreal, QC

Job type: Full-time/Permanent hiring

We are seeking an expert-level Senior Data Center Network Engineer to own the design, deployment, implementation, and advanced escalation support of our enterprise-scale data center environments. In this role, you will architect highly reliable, secure, and scalable multi-tier network solutions, collaborating tightly with security, storage, and application engineering business units. You will act as the ultimate technical authority and escalation boundary for critical network service interruptions.

Core Responsibilities

• Data Center Architecture & Design: Author comprehensive network design blueprints, high-level/low-level design documents (HLD/LLD), and complex configuration templates for Spine-Leaf/Clos fabric structures.
• High-Stakes Escalation: Act as the Tier-3 engineering escalation anchor for mission-critical network incidents, orchestrating quick isolation and root-cause analysis (RCA) for complex service disruptions.
• Core Technology Rollouts: Lead large-scale network migrations, infrastructure technology refreshes, and hardware lifecycle deployment initiatives with zero downtime.
• Collaboration & Security Governance: Partner with Enterprise Security to design multi-tier security boundaries, zone segmentations, and validate full compliance against corporate security architectures.
• Mentorship: Provide intentional engineering guidance, peer technical reviews, and runbook enhancements to foster cross-team skill development.

Required Skillsets

• Data Center Scale: Proven track record executing network architecture within heavy data center topologies using modern Leaf-Spine fabrics and VXLAN overlay networks.
• Hardware Ecosystem Mastery: Advanced, production-level engineering on Cisco Nexus switches, Cisco ASR series routers, and Arista hardware platforms.
• Advanced Protocol Routing & Switching: Absolute fluency in core protocols: BGP, OSPF, TCP/IP, VLANs, and Multilayer Switching.
• Operating Systems: Fluent navigational capabilities inside Linux/Unix server environments.

Preferred / Good to Have Skills

• Active CCIE (Routing & Switching / Data Center) or equivalent expert-level vendor validation.
• Network Programmability: Automation background developing workflows via Python and/or Ansible.
• Hybrid Cloud Connectivity: Networking experience bridging on-premises fabrics with public cloud ecosystems (AWS, Azure, or GCP).
• Enterprise Telemetry & Tooling: Hand-on experience leveraging Wireshark, DNA Center, Infoblox, Splunk, or SevOne.
• Enterprise WAN architecture including SD-WAN, DMVPN, or MPLS frameworks.