Calian GroupVerified Job Source

Network Administrator

Ottawa, ON
On-site
Posted Oct 1, 2026
1 position

$80,000–$100,000 / year

Opens an external site

Employment type: Full-time
Experience level: Mid-level · 3+ years
Minimum education: College diploma
Apply by: Oct 29, 2026
Posting language: English
Working hours: 40 hours per week
Seniority: Mid-Senior level

Job summary

Manage and optimize enterprise network infrastructure, including Wi-Fi, Fortinet firewalls, VPNs, Zscaler services, and network policies across site, data center, and cloud environments. Monitor performance and security, maintain redundancy and disaster recovery, support automation and cloud connectivity, and troubleshoot complex network issues.

Job details

Position Overview We are looking for a Network Infrastructure Administrator to join our Infrastructure Management team. In this role, you will be responsible for the design, implementation, and support of Calian’s network infrastructure systems, including enterprise Wi-Fi, firewall, routing, switching, policy enforcement, and automation across site, data center, and cloud environments. You will leverage your expertise in Fortinet and Zscaler technologies to ensure secure, high-performance connectivity across internet and private networks. Working closely with Calian IT and business unit development teams, you will manage secure network connectivity, optimize firewall and SD-WAN configurations, maintain high availability and disaster recovery capabilities, and support the continuous improvement of network infrastructure. The ideal candidate is proactive, solutions-focused, and skilled at identifying and resolving complex network issues to ensure stability, security, and performance. Responsibilities Own and manage enterprise Wi-Fi infrastructure, ensuring optimal performance and coverage across all environments. Administer and optimize Fortinet firewalls, VPNs, security policies, and FortiManager configurations. Administer and support Zscaler cloud security services for secure internet and private connectivity. Design and enforce enterprise-wide network policies, including firewall rules, access controls, and compliance standards. Monitor and optimize network performance, capacity, and security across hybrid environments. Implement and maintain network redundancy and disaster recovery solutions. Integrate and support on-premises and cloud-based network services in Azure and AWS environments. Implement network automation and monitoring tools, including FortiManager and SNMP-based solutions. Collaborate with security teams to enforce network security best practices and compliance requirements. Troubleshoot network issues within Fortinet environments, including firewall rules, VPNs, and wireless connectivity, quickly identifying root causes and implementing effective solutions to maintain network stability and performance. Perform other duties as required within the scope of the role. Qualifications College diploma or university degree in Computer Science or a related field, or equivalent relevant experience. 3+ years of experience with enterprise networking, including routing, switching, and firewalls. 3+ years of hands-on experience with Fortinet technologies, including FortiGate, FortiManager, and FortiAnalyzer. Experience supporting Zscaler cloud security services. Strong understanding of network security, DNS, DHCP, VLANs, SD-WAN, VPN technologies, and the OSI model. Experience with cloud networking in Azure and AWS environments and hybrid connectivity solutions. Experience using FortiManager and FortiAnalyzer for centralized policy management and log analysis. Strong analytical and troubleshooting skills with the ability to resolve complex network challenges. Compensation Additional Requirements $80,000 to $100,00 Position Type We have 1 available position. Perks And Benefits Competitive, company-paid benefits Generous time off package Stock purchase plan RRSP program Flexible work hours for eligible roles Programs to support employee health and well-being

What you’ll do

Requirements

Requires a college diploma or university degree in Computer Science or a related field, or equivalent relevant experience, and at least three years of enterprise networking experience. Candidates should have at least three years of hands-on Fortinet experience, Zscaler support experience, knowledge of core networking and security technologies, and experience with Azure and AWS networking.