Senior Network Administrator

SSENSE is a global technology platform operating at the intersection of culture, community, and commerce. Headquartered in Montreal, it features a mix of established and emerging luxury brands across womenswear, menswear, kidswear, and Everything Else™. SSENSE has garnered critical acclaim as both an e-commerce engine and a producer of cultural content, generating an average of 100 million monthly page views.

About the Job:

SSENSE is looking for a Senior Network Administrator to build, oversee, and optimize our growing hybrid network infrastructure across office, Fulfillment Centre, retail, and cloud environments. Based in Montreal, Quebec, this is a full-time, hybrid-remote opportunity to join a team that values deep technical expertise, proactive problem-solving, and strategic impact.

What You’ll Do:

• Day-to-day network support: Monitor and troubleshoot LAN/WAN connectivity, switches, routers and wireless access points (WLC).

• Firewall, VPN & Access Control: Configure and manage Cisco Next-Generation Firewall (Firepower) policies, Cloudflare Access/WARP tunnels and Cisco ISE for network access control; perform user provisioning, certificate lifecycle management, 802.1X/RADIUS authentication and enforce Zero Trust access policies.

• System monitoring: Use DataDog and Catalyst Center to track uptime, performance metrics and respond to alerts.

• Ticket resolution: Collaborate with the IT helpdesk to resolve user-reported network or security issues.

• Documentation: Maintain up-to-date network diagrams, IP address spreadsheets, SOPs and runbooks.

• Collaborate on projects: Partner with senior engineers on network moves, configuration changes and security hardening tasks.

• Experience: 5+ years in complex network environments with Cisco & VMware solutions.

• Wired & Wireless Networking: Hands-on with Cisco routing & switching, VLANs, VXLAN, WLCs and APs.

• Security Solutions: Expertise in Cisco Firepower (NGFW), Cisco ISE, IPS/IDS, PKI and 802.1X/Dot1x.

• Protocols & Technologies: Deep knowledge of L3 (OSPF, BGP, MPLS) and L2 (STP, LACP, PAgP) technologies.

• Automation & Provisioning: Experience with Ansible and Terraform for network provisioning and capacity planning.

• Troubleshooting Tools: Proficient with Wireshark, tcpdump, NetFlow (or similar) for network and security analysis.

What Sets You apart:

• CCIE certification is an asset. 

• Methodologies: Familiarity with Agile frameworks (Kanban and/or Scrum) is a plus.

Why Join Us:

• Extended health and dental benefits, including comprehensive mental health programs and coverage

• Parental top up program

• Generous Employee Discount 

• Access to telemedicine and employee and family assistance program

• Savings and retirement plan matching contributions

• Gender Affirmation Coverage Opportunity to work with cutting edge technologies and an innovative team that’s pushing the boundaries of technology

SSENSE is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. If you need special accommodations, let us know. We will do our best to accommodate you!

#LI-Hybrid, Hybrid remote/in-office