Senior Network Administrator

Position: Senior Network administrator (x1)

Department: Information Services

Posting ID#: 8044

Role Level: PG10 ($45.02 - $56.28 per hour)

Status: Permanent Full Time

Site: Credit Valley Hospital and Queensway Health Centre (Required to work minimum 3 days a week on site)

Shift: Day shift (8.00am -4.00pm or 9.00am -5.00pm)

Posted: September 21, 2026

Internal Deadline: October 21, 2026

Trillium Health Partners is one of Canada’s largest community-based teaching hospitals, serving the growing and diverse populations of Mississauga, West Toronto, and surrounding communities through the Credit Valley Hospital, the Mississauga Hospital, the Queensway Health Centre, the Reactivation care Centre (Church Site) and the new THP-UHN Reactivation Care Centre. Guided by our values of compassion, excellence, and courage, and through our strategic roadmap, Plan to 2030, we are creating a new kind of health care - defined not by illness, but by the health and well-being of people and communities.

Summary:

As an integral member of the Network Services team, the Senior Network Administrator will actively contribute to developing and maintaining the high-level design plans for the enterprise network. This individual will provide technical leadership and consulting across the organization, including strategic planning and project planning. Reporting to the Manager, Network and Telecom, the Senior Network Administrator will gain IT Leadership commitment for all high-level network plans and initiate and participate in projects to evaluate technologies and methods for implementing these plans.

With a focus on maximizing technical investments and optimizing performance, the Senior Network Administrator will actively participate in the development of long-term vision, strategy, and roadmaps for networks, including LANs, WANs, VoIP, VPN and Wireless technologies, based on best practices.

Key Areas of Focus:

The primary accountabilities for the Senior Network Administrator at Trillium HealthPartners are to analyze, plan, design, and implement the organization's Network infrastructure according to best practices, while ensuring high levels of systems availability and stability and providing necessary support and maintenance activities escalated to the department:

• Actively participate in the design and project implementation of the organizations network technologies for LANs, WANs, DC, Firewall, VPN, and Wireless technologies
• Provide consulting expertise, direction, and assistance to IS colleagues (Systems Analysts, infrastructure Admins, Database Analysts, Security Analysts), Facilities/Redevelopment colleagues, and 3 party partnerships in support of IT initiatives and enterprise projects.
• Conduct research on emerging technologies in support of infrastructure development efforts and recommend technologies that will increase cost effectiveness and infrastructure flexibility.
• Actively monitor the network and proactively take proper actions in preventing boarder impacts and outages.
• Troubleshoot networking and security issues escalated.
• Develop, document, communicate, and enforce a network technology standards policy.
• Generate physical and logical topologies of provided solutions and hospital network

Knowledge & Experience:

• CCNA certification is required. Cisco ENCOR, CCNP, or CCIE certification in correspondent technology is preferred
• Extensive experience in the following technologies and protocols:
  • Routing and switching
  • Wireless
  • Security
  • Data Center
  • VOIP
  • AAA, RADIUS, TACACS, 802.1X
• Excellent knowledge and expertise in designing, configuring, and troubleshooting the following products and services:
  • Cisco Identity Services Engine (ISE)
  • Cisco Catalyst 9K series
  • Cisco Aggregation Services Routers (ASR)
  • Cisco Wireless LAN Controllers (AireOS and Catalyst 9800)
  • Cisco next generation firewalls: Firepower Threat Defence, ASA and Firewall Management Center (FMC)
  • PaloAlto firewalls
  • Cisco Application Centric Infrastructure (ACI)
  • Cisco Catalyst Center (formerly DNAC)
  • Cisco SD-Access
  • Cisco Nexus 9K switches
• Good knowledge in various WAN circuits available in the region

To pursue this career opportunity, please visit our website:

Trillium Health Partners’ (THP) is an equal opportunity employer who values the importance of antiracism work and is committed to integrating antiracism, diversity, equity and inclusion best practices throughout THP operations, policies and culture. Therefore, we ask that even if you do not see yourself fully reflected in every job requirement listed on this posting, we still encourage you to reach out and apply. Research has shown that candidates from underrepresented groups often only apply when they feel 100% qualified. We encourage all applicants who are members of groups that have been marginalized on any grounds enumerated under the Ontario Human Rights Code based on race, gender identity or expression, sex, sexual orientation, disability, political belief, religion, marital or family status, age, and/or status as a First Nations, Métis or Inuk/Inuit person to consider this opportunity.

In accordance with the Accessibility for Ontarians with Disabilities Act, 2005 and the Ontario Human Rights Code Trillium Health Partners will provide accommodations throughout the recruitment and selection process to applicants with disabilities. If selected to participate in the recruitment and selection process, please inform Human Resources of the nature of any accommodation(s) that you may require in respect of any materials or processes used to ensure your equal participation.

All personal information is collected under the authority of the Freedom of Information and Protection of Privacy Act.

Trillium Health Partners is identified under the French Language Services Act.

We thank all those who apply but only those selected for further consideration will be contacted.

Our organization may use automated tools, including artificial intelligence (AI) or algorithm-assisted systems, to support the initial review of applications. These tools are used only to assist our recruiters and hiring managers; all hiring decisions include meaningful human involvement and final review.