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L3 Network Operations Consultant – Technical Lead

HCLTech · Toronto

Hybrid 🇬🇧 English
Cisco ACI Cisco Routing & Switching BGP OSPF EIGRP VLAN STP HSRP VRRP QoS WAN optimization Cisco DNA Center Cisco Wireless Cisco ISE

Description du poste

About the role

We are seeking a senior consultant to lead L3 network operations for our enterprise environment in Toronto. The role combines technical leadership, advanced troubleshooting, and the design of modern network architectures while working in a hybrid on‑site/remote model.

Key responsibilities

  • Provide L3 support for critical incidents, perform root‑cause analysis and drive resolution.
  • Define network standards, SOPs and produce high‑level and low‑level designs (HLD/LLD).
  • Collaborate with security, cloud, infrastructure and application teams to ensure seamless integration.
  • Monitor network performance, implement continuous optimization and automation.
  • Manage vendor relationships, coordinate upgrades and lead technology refresh initiatives.
  • Mentor and guide L1/L2 engineers, fostering knowledge sharing and best practices.

Required profile

  • Relevant certifications such as Cisco CCNA; CCIE Routing & Switching preferred.
  • Strong analytical and problem‑solving capabilities.
  • Proven experience designing, deploying and optimizing enterprise network architectures.
  • Ability to lead cross‑functional teams and communicate effectively with stakeholders.

Required skills

  • Cisco ACI – fabric configuration, policy modelling, tenant creation, contracts, integration and troubleshooting.
  • Cisco Routing & Switching – BGP, OSPF, EIGRP, VLANs, STP, HSRP/VRRP, QoS, WAN optimization.
  • Cisco DNA Center – assurance, automation workflows, templates and configuration management.
  • Cisco Wireless – controller‑based solutions, AP provisioning, RF optimization and security.
  • Cisco ISE – network access control, authentication policies, posture assessment and guest access workflows.

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HCLTech

Toronto