Network SME

Job Description

Are you passionate about building and securing large-scale networks? Join our team as a Network Subject Matter Expert (SME) in Montreal! We are looking for a highly experienced professional with a deep understanding of modern networking, especially in complex, high-security environments.

What You’ll Do:

• Design, implement, and maintain large, secure network infrastructures for both production and non-production environments.
• Lead efforts to separate and secure networks, helping ensure robust security and smooth business operations.
• Work closely with business and technical teams to explain/socialize risks with larger teams and implement the network designs.
• Develop and execute comprehensive network implementation plans, with security and stability in mind.
• Build automation for repetitive network tasks using tools like Python and Ansible.
• Perform scheduled network changes and migrations during weekends and outside normal business hours as required.

What We’re Looking For:

• 10+ years of networking experience — ideally in financial services, technology vendors, or systems integrators.
• Expertise with Ethernet technologies (STP, 802.1x, VPC, Multilayer Switching, Leaf-Spine IP Fabric).
• Deep knowledge of IP routing protocols (RIP, OSPF, BGP, MPBGP, TCP/IP) and multicast (PIM, IGMP, MSDP).
• Hands-on experience with Cisco ASR, Nexus, Catalyst, and Arista switches, and network operating systems (Cisco IOS, IOS-XE, NXOS, IOS-XR, Arista EOS).
• Strong background in network security concepts, multi-tier security architectures, and best practices for segmenting production and non-production networks.
• Experience with network tools such as Wireshark, Infoblox, HPNA, Splunk, Sevone.
• Familiarity with project/task management tools like JIRA, especially Agile/Kanban methods.
• Strong scripting/automation skills are a must. Able to independently develop solutions for repetitive network tasks.
• Willing to work weekends.

Nice to Have:

• UNIX or Linux skills.
• CCIE or similar certifications.
• Knowledge of Wireless infra, SDN, SDWAN, DMVPN, public cloud is a plus.
• Strong grasp of security concepts (defense in depth, zero trust, least privilege, risk controls).
• Experience working on enterprise-level initiatives with senior stakeholders across multiple regions and cultures.
• Experience with Optical equipment like Adva/Ciena is a plus.
• Experience with timing infra like the Spectracom/Meinberg is a plus.

Who You Are:

• A clear communicator with excellent presentation skills.
• A team player who can also work independently on large-scale projects.
• Flexible, reliable, and dedicated to delivering results.
• Someone who takes ownership and accountability for your work.