Senior Network Engineer with strong Cisco and wireless networking experience required for Concord based organization.
S.i. Systems
Toronto, ON-
Number of positions available : 1
- Salary To be discussed
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Permanent job
- Published on November 25th, 2025
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Starting date : 1 position to fill as soon as possible
Description
ROLE:
The job purpose of a Senior Network Engineer is to design, implement, maintain, and optimize an organization's network infrastructure to ensure smooth, secure, and efficient network operations. This role involves responsibility for network hardware and software configuration, performance monitoring, troubleshooting, and applying security measures to protect the network from threats. Additionally, Senior Network Engineers collaborate with network architects, lead and mentor junior engineers, manage escalated support issues, and ensure compliance with industry standards and organizational goals. They play a critical role in maintaining network reliability, minimizing downtime, and continuously improving network capabilities through staying updated on the latest technologies and best practices.
MUST HAVE:
- University Degree/College Diploma in an Information Technology discipline and a minimum 7+ years’ experience in an IT technical role with at least 5+ years focusing on computer networking
- Senior technical knowledge of enterprise network architecture including LAN/WAN/SDWAN/VPN and wireless networking, hardware, software, and associated monitoring platforms
- Strong knowledge of network solutions, standards, governance and strategy including network security, datacentre, and cloud interconnect principles
- Strong, demonstrable experience with wireless design and implementation including surveying, designing based on architectural drawings, and deploying/testing to production
- Experience managing wireless controllers and both on-prem and cloud based wireless access points and associated platforms with a focus on Cisco and secondly Aruba
- Technical knowledge operating F5 load balancers, SD-WAN topologies such as VeloCloud, Palo Alto firewalls and network security appliances, windows based DHCP/DNS services, Cisco ISE/Secure Client (AnyConnect) or other comparable technologies
- Experience architecting and managing network segregation, VLAN configurations, NAC, and trunking with a demonstrated ability to optimize and scale the enterprise network
- Experience architecting and managing either locally hosted or managed service DDI platforms
- Direct experience operating and managing Network Management & Monitoring Tools
- Willing and able to work on-site as necessary and occasionally travel between branch and head office locations across Canada and in certain US locations
- Customer service focused, experience working in ticketing based systems and leading network operations / NOC teams
- Strong troubleshooting ability, quickly able to rule out or pinpoint and solve general network performance/access issues
- Positive team player with strong problem-solving abilities and a sense of urgency in a fast-paced environment. Demonstrable team leadership capability
- Certifications in the areas of general networking support, wireless networking, Cisco, F5 and Palo Alto are of strong benefit. Other certifications such as Aruba, Juniper, etc a bonus
Requirements
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