Job Title: Senior Network Administrator

Overview:

We are seeking a highly experienced and hands-on Senior Network Administrator to support a large enterprise IT environment across 10+ locations in Ontario. This role is well-suited for a seasoned professional looking for stability, and wanting to contribute meaningfully to a large-scale, established infrastructure.

You will be responsible for deploying and maintaining enterprise-grade networking solutions while working closely with IT operations and DevOps teams in a dynamic yet low-intensity setting.

Key Responsibilities:

• Configure and deploy over 300 Cisco switches across multiple sites.
• Perform network configuration clean-up to ensure uniformity and efficiency enterprise-wide.
• Work with networking technologies such as wireless bridges, Layer 3 to Layer 2 transitions, port mappings, LACP, and port channels.
• Assist in identity management processes and conduct firewall policy reviews.
• Provide post-implementation support for Microsoft Teams telephony rollout.
• Collaborate with an operations team of 5 and a DevOps team of over 24, supporting a team of 30 overall.
• Respond to and resolve end-user tickets in a high-volume support environment.

Required Qualifications:

• 6+ years of hands-on network administration experience in large, multi-site enterprise environments.
• Bachelor’s degree or equivalent in Information Technology, Information Systems, Engineering, or a related field.
• Proven experience in designing, architecting, and deploying high-availability, redundant network infrastructures.
• Strong technical expertise with Cisco routers, switches, firewalls, and wireless Access Points.
• In-depth knowledge of the OSI reference model and network protocols.
• Familiarity with Microsoft licensing, identity management, and enterprise infrastructure ecosystems.
• Experience with IT ticketing systems (e.g., ICSM) and enterprise-grade IT operations.
• Experience supporting Microsoft Teams telephony or VoIP solutions.
• Familiarity with Cisco’s ecosystem and fabric networking strategies.
• Experience in public sector, unionized or higher education environments is highly preferred.

Certifications:

• Cisco Certified Network Professional (CCNP) – preferred.
• Cisco Certified Network Associate (CCNA) with strong enterprise experience will be considered.
• CCIE Security is a strong asset but not mandatory.

We’re an equal opportunity employer committed to increasing diversity and inclusion in today’s workforce. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Minorities, women, LGBTQ candidates, and individuals with disabilities are encouraged to apply. If you require an accommodation, please review our accessibility policy and reach out to our accessibility officer with any questions.