Senior Network Administrator

Position: Senior Network Administrator
Location: Etobicoke, ON
Salary: $105K-$115K
Job Type: Permanent
Hybrid: 3 days in office
Posting Type: Open vacancy

Are you a senior-level networking professional with deep expertise in enterprise network infrastructure, Palo Alto security solutions, and F5 Load Balancing technologies?

We are seeking a Senior Network Administrator to take ownership of complex network infrastructure, lead advanced troubleshooting efforts, and help ensure the reliability, security, and performance of enterprise network environments. This role is ideal for someone who brings strong technical expertise, can independently manage escalations, and thrives in a business-critical infrastructure environment.

Key Responsibilities:

- Lead the administration, configuration, and optimization of enterprise network infrastructure, including complex routing, switching, LAN/WAN, and network connectivity.
- Manage and optimize Palo Alto firewall environments, including advanced security policies, VPNs, network segmentation, and security troubleshooting.
- Administer and troubleshoot F5 Load Balancers, including advanced traffic management, application delivery, high availability, and performance optimization.
- Act as a senior technical escalation point for complex network incidents, conduct root cause analysis, and implement long-term solutions to improve network stability.
- Participate in an on-call rotation, providing advanced technical support for critical network issues and ensuring high availability of enterprise network services.

Required Qualifications:

- 5+ years of progressive experience in enterprise network administration or network engineering, preferably in complex, large-scale environments.
- Advanced hands-on experience with Palo Alto firewalls, including policy management, security configurations, VPNs, and troubleshooting.
- Strong experience administering F5 Load Balancers, including application delivery, traffic management, and high availability.
- Expert understanding of enterprise networking technologies, including routing protocols, switching, VLANs, TCP/IP, LAN/WAN, and network security.
- Demonstrated ability to independently troubleshoot complex network issues, lead technical escalations, and participate in an on-call rotation.

Interested? Apply today or reach out directly to Neeta Bernard at neeta.bernard@quantum-qtr.com to learn more about this opportunity!

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