Network Security Engineer

GlassHouse Systems

. Configure, implement, maintain, and troubleshoot network and security solutions .

Posted 10/7/2026full-timeToronto • CanadaMid-LevelSenior💰 CA$90,000 - CA$110,000 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in configuring, implementing, and troubleshooting network and security solutions, with a strong focus on firewall technologies and enterprise networking. Proficient in TCP/IP, routing protocols, and cloud networking environments, while effectively communicating technical updates to stakeholders.

Highest-signal resume keywords

Cisco CCNP Enterprise/Security CertificationHands-On Experience with Firewall TechnologiesExpertise in TCP/IP and SubnettingExperience with BGP and OSPF Routing ProtocolsProficient in Packet Capture and Traffic Analysis

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network ConfigurationFirewall Policy ManagementIPsec VPN ConfigurationRouting and SwitchingTCP/IP TroubleshootingVLAN ConfigurationNAT and DNS ManagementChange Management ProcessesTraffic Analysis with WiresharkCloud Networking Solutions

Soft Skills

Strong Written CommunicationVerbal Communication SkillsProblem-Solving AbilitiesTeam CollaborationCustomer Interaction

Tools & Technologies

Palo Alto FirewallsFortinet FortiGateCisco FirepowerWiresharkVendor Diagnostic Tools

Certifications & Qualifications

Cisco CCNP EnterpriseCisco CCNP Security

Industry Keywords

Network SecurityEnterprise NetworkingHybrid-Cloud ConnectivityIncident ManagementChange Management

Tech Stack

Tools & technologies

CloudDNSSwitchingTCP/IP

About the role

Key responsibilities & impact

Configure, implement, maintain, and troubleshoot network and security solutions
Support Palo Alto, FortiGate, Cisco Firepower, and other firewall platforms, including security policies, NAT, security profiles, and high-availability configurations
Configure, maintain, and troubleshoot site-to-site IPsec VPNs and remote-access VPN solutions
Support enterprise LAN/WAN and data center networking, including VLANs, trunk, LACP/port-channels, STP, HSRP/VRRP, routing, and switching
Support BGP and OSPF routing and assist Senior Engineers with complex routing and connectivity issues
Perform TCP/IP troubleshooting, packet captures, traffic analysis, and problem determination using Wireshark and vendor diagnostic tools
Support hybrid-cloud connectivity and cloud networking environments, including VPC connectivity, transit connectivity, routing, VPNs, and secure cloud-to-on-premises connectivity
Work with Senior Network Security Engineers on implementations, migrations, upgrades, maintenance, and complex troubleshooting
Execute approved changes under GHS change-management procedures, including validation, implementation, testing, rollback readiness, and post-change verification
Review incidents, service requests, and project tasks; provide status updates and maintain technical records
Create and maintain network diagrams, implementation documents, configuration records, standard operating procedures, and knowledge-base documentation
Work with customers, vendors, carriers, cloud providers, and internal technical teams to resolve network and security issues
Participate in technical assessments and solution design and implementation planning under Senior Engineer guidance
Participate in on-call rotation and respond to critical/high-severity incidents and approved after-hours changes
Develop technical skills through hands-on work, vendor training, certification, and mentoring

Requirements

What you’ll need

Bachelor’s degree in computer networking or computer science is preferred
Cisco CCNP Enterprise/Security certification
Minimum 5+ years of hands-on experience in enterprise networking and/or network security environments
Solid understanding of TCP/IP, subnetting, VLANs, routing, switching, NAT, DNS, DHCP, and common network services
Hands-on experience supporting enterprise firewall technologies, including Fortinet FortiGate, Firepower and/or Palo Alto
Practical experience configuring and troubleshooting firewall policies, NAT, IPsec VPNs, remote-access VPNs, and security profiles
Working knowledge of BGP and OSPF routing protocols
Experience troubleshooting network connectivity using packet captures, logs, CLI diagnostic tools, and Wireshark
Experience working with incident, request, problem, and change-management processes in production environments
Ability to follow technical procedures and change plans and recognize when escalation to a Senior Engineer is required
Strong written and verbal communication skills and ability to provide clear technical updates to internal teams and customers
Ability and willingness to participate in an on-call rotation and occasional after-hours implementation or incident activities
Legally eligible to work in Canada
Successful criminal record check required as a condition of employment

Benefits

Comp & perks

Competitive salary
Health benefits (medical, vision, dental)
Life insurance
Pension plan
Professional development
Amazing company culture
Free parking
Gym on-site
Diverse leadership and equal opportunity workplace
Accommodation for individuals with disabilities through each stage of the recruitment process