Network Infrastructure Specialist

Querentia; Ottawa; On-site; CAD 90,000 - 130,000; Full time

Job summary

Querentia in Ottawa is seeking an experienced Network Infrastructure Specialist at intermediate to senior levels to design, deploy, and support secure government-focused networks.

The role requires hands-on work with Extreme/Avaya Fabric, routers, switches, VPNs, SDN, WAN, and NAC, plus documentation and collaboration with security teams to ensure compliant operations.

Qualifications

• 5–9 years of relevant experience at Intermediate level
• Senior level requires 10+ years of relevant experience
• University degree, diploma, or equivalent IT experience
• Hands-on with Extreme/Avaya Fabric Networks, routers, switches, firewalls, and VPNs
• Experience in SDN and WAN
• Experience in NAC and network documentation
• Experience in secure government or highly regulated environments preferred
• Active Secret or Top Secret security clearance required

Responsibilities

• Design, deploy, maintain, and troubleshoot enterprise network infrastructure.
• Support Extreme/Avaya Fabric Networks, routers, switches, firewalls, and VPNs.
• Design and support SDN and WAN.
• Implement and maintain NAC solutions.
• Create and maintain network diagrams and deployment standards.
• Collaborate with infrastructure and security teams to ensure compliant operations.

Skills

Enterprise networking

WAN

SDN

VPNs

NAC

Security clearance

Documentation

Education

University degree or diploma

Tools

Extreme/Avaya Fabric Networks

Routers

Firewalls

Job description

Role: Network Infrastructure Specialist Intermediate & Senior Job Summary

We are seeking Intermediate (5 9 years) and Senior (10+ years) Network Infrastructure Specialists to design, deploy, and support secure enterprise network environments for Government of Canada projects. The ideal candidate will have strong expertise in enterprise networking, security, WAN, SDN, VPNs, and network infrastructure design.

Key Responsibilities

• Design, deploy, maintain, and troubleshoot enterprise network infrastructure.

• Support Extreme/Avaya Fabric Networks, routers, switches, firewalls, and VPN solutions.

• Design and support Software Defined Networks (SDN) and Wide Area Networks (WAN).

• Implement and maintain Network Access Control (NAC) solutions.

• Create and maintain technical documentation, network diagrams, and deployment standards.

• Collaborate with infrastructure and security teams to ensure reliable, secure, and compliant network operations.

Required Skills & Experience

• Intermediate: 5 9 years | Senior: 10+ years of relevant experience.

• University degree, diploma, or equivalent IT experience.

• Hands-on experience with:

  • Physical network infrastructure design, deployment, and troubleshooting

  • Extreme/Avaya Fabric Networks

  • Enterprise routers, switches, and firewalls

  • VPN technologies

  • Software Defined Networking (SDN)

  • Wide Area Networks (WAN)

  • Enterprise Network Access Control (NAC)

  • Network documentation and architecture diagrams

• Experience supporting secure Government or highly regulated environments is highly preferred.

Mandatory: Active Secret or Top Secret Security Clearance.