Senior Network

Reporting to the IT Lead, the incumbent is a senior technical contributor responsible for the proper operation, security, and evolution of the company’s network infrastructure, servers, workstations, software, and peripherals. More specifically, the incumbent will:
• Diagnose and resolve incidents, and provide escalation support to users regarding equipment and software
• Contribute to the development, technical design, implementation, training, and maintenance of systems
• Install, test, and update computer equipment (computers, servers, peripherals, programs, and software)
• Maintain the security, administration, and day-to-day operation of the equipment Network Administration
• Maintain LAN/WAN infrastructure, including switches, routers, firewalls, VPNs, and wireless networks (Fortinet, Cisco and HPE Aruba equipment)
• Manage network segmentation, VLANs, and routing protocols (BGP, OSPF)
• Monitor network performance, troubleshoot complex issues, and perform capacity planning
• Oversee structured cabling and fiber connectivity in on-premises server rooms, including during the transition to the cloud Systems Administration
• Administer Windows Server and Linux environments (physical and virtual)
• Manage virtualization platforms (Hyper-V or Proxmox) and cloud resources (Azure and AWS)
• Maintain Active Directory, Entra ID, Group Policy, DNS, DHCP, and identity and access management
• Handle patch management, configuration management, and lifecycle planning Security & Resilience
• Implement and enforce security best practices, including hardening, access controls, and vulnerability remediation
• Configure, maintain, and regularly test backup, disaster recovery, and business continuity solutions
• Support audits and compliance requirements
• Respond to and document security incidents Automation & Operations
• Automate repetitive tasks
• Maintain monitoring and alerting systems
• Create and maintain clear documentation, procedures, runbooks, and network diagrams
• Maintain an inventory of all IT components in the organization
• Participate in an on-call rotation (every other week) to resolve critical incidents remotely outside office hours Leadership
• Mentor less experienced team members and contribute to technical standards
• Evaluate new technologies and recommend improvements Requirements
• College diploma (DEC) or Attestation of College Studies (AEC) in computer science
• 10+ years of global experience in network and/or systems administration, including at least 2 years in a senior or technical-lead capacity
• Experience in a multi-site environment
• Strong knowledge of TCP/IP, switching, routing (including BGP and OSPF), firewalls, and VPN technologies
• Experience with Fortinet, Cisco and Aruba technology
• Strong experience with Windows Server/Workstation and Linux administration
• Strong experience with cloud providers (Azure and AWS), including migrating on-premises workloads to the cloud
• Strong knowledge of Active Directory and Entra ID
• Background in regulated or high-availability environments
• Experience with virtualization and backup/disaster recovery solutions
• Proficiency in at least one scripting language (PowerShell, Python, or Bash)
• Excellent written and verbal communication
• Availability to be on call every other week and to resolve critical incidents remotely outside office hours
• Ability to communicate in French and English; Spanish is an asset Abilities
• Good ability to analyze and synthesize processes
• Ability to work as part of a team in a multicultural environment
• Ability to work on-site at the office five days a week
• Ability to travel overseas
• Concern for customer service and quality of work
• Thoroughness and attention to detail
• Autonomy and initiative
• Organizational skills and adaptability