Infrastructure architect Jobs in Markham, ON

We are seeking an experienced Senior Technology Architect to lead the technical design, deployment, migration, and daily operation of next-generation enterprise LAN and WAN network infrastructure. In this role, you will collaborate with network designers and facility engineering teams to implement high-availability firewalls, software-defined wide area networking (SD-WAN), complex dynamic routing protocols, and automated network configurations. Operating within critical 24x7 environments, you will establish robust security policies, optimize traffic routing and Quality of Service (QoS), and troubleshoot complex IP routing and switching issues.

Location: North York, ON (Fully Onsite – 5 days/week required)

Duration: 7-month contract.



Advantages
Advanced Enterprise SD-WAN Scope: Hands-on architecture and migration experience with Cisco SD-WAN (Viptela).

Core Next-Gen Security Focus: Full deployment ownership of Palo Alto Firewalls and Panorama centralized management.

Network Automation Integration: Drive network configuration efficiencies using Ansible, Jenkins, and API scripting.

Mission-Critical Environment: Direct impact on high-availability, 24x7 enterprise network infrastructure.



Responsibilities
Develop high-level and low-level network design workbooks and technical specifications for enterprise LAN and WAN deployments.

Configure, deploy, migrate, and troubleshoot Cisco SD-WAN (Viptela) environments, including central and local policies for traffic and application-aware routing.

Install, configure, and maintain Palo Alto Firewalls, Panorama centralized management, and Cloud Logging solutions.

Implement dynamic IP routing protocols (OSPF, BGP) across SD-WAN routers, switches, and high-availability firewalls.

Perform physical installation and configuration of routers, LAN switches, Out-of-Band (OOB) management firewalls, and network devices.

Design and enforce Quality of Service (QoS) and traffic shaping policies to support enterprise voice, video, and mission-critical applications.

Deploy identity management and network access control solutions using Aruba ClearPass Policy Manager.

Drive network configuration management and deployment automation using Ansible and API scripting frameworks.

Monitor, troubleshoot, and support enterprise network environments during pilot and operational deployment phases.



Qualifications
Palo Alto Expertise: Extensive hands-on experience in the installation, configuration, Panorama management, and daily operation of Palo Alto Firewalls (Strictly Required).

Cisco SD-WAN (Viptela): Proven experience in Cisco SD-WAN implementation, template/policy configuration, migration, and advanced troubleshooting (Strictly Required).

Advanced IP Routing Protocols: Strong, expert-level knowledge of IP communication protocols and dynamic routing (OSPF, BGP) across firewalls and SD-WAN devices (Strictly Required).

Datacenter Switching & L2/L3: In-depth experience configuring datacenter switching infrastructure (such as Cisco Nexus 9K series) and L2/L3 network architecture.

Network Automation & Identity Management: Working experience with network automation tools (Ansible, Jenkins), network access control (Aruba ClearPass), and virtualization (VMware ESXi networking).

Education & Experience: Related degree in Computer Science, Electrical Engineering, or 7 to 10 years of equivalent network engineering and architecture experience.



Summary
If you're interested in the "Senior Technology Architect" role based in Toronto, we encourage you to apply online at www.randstad.ca.
Only qualified candidates will be contacted for the next steps. We look forward to hearing from you!

Randstad Canada is committed to fostering a workforce reflective of all peoples of Canada. As a result, we are committed to developing and implementing strategies to increase the equity, diversity and inclusion within the workplace by examining our internal policies, practices, and systems throughout the entire lifecycle of our workforce, including its recruitment, retention and advancement for all employees. In addition to our deep commitment to respecting human rights, we are dedicated to positive actions to affect change to ensure everyone has full participation in the workforce free from any barriers, systemic or otherwise, especially equity-seeking groups who are usually underrepresented in Canada's workforce, including those who identify as women or non-binary/gender non-conforming; Indigenous or Aboriginal Peoples; persons with disabilities (visible or invisible) and; members of visible minorities, racialized groups and the LGBTQ2+ community.

Randstad Canada is committed to creating and maintaining an inclusive and accessible workplace for all its candidates and employees by supporting their accessibility and accommodation needs throughout the employment lifecycle. We ask that all job applications please identify any accommodation requirements by sending an email to accessibility@randstad.ca to ensure their ability to fully participate in the interview process.