Job descriptionLocation:
Toronto, ON, Hybrid, 3 days onsite per week Language:
English, advanced written and verbal communication required Duration:
6-month contract with potential 6-month extension Background Check Requirement:
Criminal background check may be required
About the Opportunity A large public sector organization is seeking a Senior Technology Architect to support critical enterprise infrastructure and cybersecurity initiatives within a complex, high-availability environment. This role is ideal for a seasoned infrastructure and security professional who thrives in large-scale enterprise settings and enjoys solving complex networking and security challenges that directly support essential public services.
You will work alongside experienced infrastructure, security, and operations teams to strengthen enterprise architecture, support secure connectivity, and lead technical remediation and modernization efforts. The environment is highly collaborative, fast paced, and focused on operational excellence, resiliency, and continuous improvement.
What’s In It for You
Opportunity to work on enterprise-scale infrastructure and security modernization initiatives
Exposure to complex networking, cloud, and perimeter security environments
Collaborative team culture that values technical expertise and knowledge sharing
Flexible hybrid work model with meaningful, high-impact project work
Opportunity to contribute to critical public sector technology operations and security initiatives
Your Responsibilities
You’ll lead the design, implementation, and support of enterprise network and security architecture solutions
In this role, you’ll manage and optimize high-availability infrastructure including F5, Checkpoint, proxy, and remote access technologies
You’ll oversee technical vulnerability assessments and support remediation of security incidents across enterprise environments
You’ll analyze network traffic and authentication protocols to troubleshoot and strengthen security posture
In this role, you’ll support cloud and clustered infrastructure solutions within complex LAN/WAN environments
You’ll collaborate with cross-functional teams to ensure infrastructure reliability, scalability, and compliance with security best practices
You’ll participate in after-hours migration and implementation activities as required
Skills and Qualifications
10+ years of progressive experience in computing infrastructure and information security within large enterprise environments
Expert-level experience with F5 LTM, APM, ASM, and GTM technologies
Strong experience managing clustered high-availability firewalls, load balancers, and proxy technologies including Checkpoint, Broadcom ProxySG, and Zscaler ZIA
Advanced understanding of networking technologies, authentication protocols, and information security best practices
Hands‑on experience with vulnerability assessments, intrusion detection, and perimeter network security
Experience supporting LAN/WAN, cloud infrastructure, and remote access environments
Degree in Computer Science, Engineering, Technical Diploma, or equivalent combination of education and experience
All qualified applicants will receive fair consideration for employment. We welcome individuals of all backgrounds, experiences, and identities including those who identify as women, members of racialized groups, Indigenous Peoples, persons with disabilities, and 2SLGBTQIA+ communities. If you require an accommodation, please review accessibility policy and reach out to our accessibility officer with any questions. Our human recruiters review all applications and always make the final hiring decision. On occasion, we also use AI‑assisted tools to help review applications.
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