SENIOR Specialist Cyber Architecture

Job Title: SENIOR SPECIALIST Cyber Architecture

Closing Date: May 31, 2026 2:00 p.m. (EST)

Location: Downtown, Toronto

Affiliation: Non-Union

Consider Your Role with Aliant Resources and Our Municipal Government Client The City of Toronto.

About Us

Aliant Resources is a dedicated provider of IT staffing services, committed to promoting diversity, equity, inclusion, belonging, anti-racism, and accessibility in all facets of our operations.

Job Summary:

The Senior Specialist, Cyber Architecture will be responsible for supporting the Chief Information Security Officer (CISO) in executing the City’s cyber vision, strategy, and goals. The primary focus will be on advising and delivering technical expertise related to cloud security initiatives across the City’s divisions, agencies, and corporations.

This role will involve the development, implementation, and continuous improvement of cloud security measures, engaging with teams to enhance the cyber security posture of cloud environments.

The Security Architect provides senior-level technical leadership and subject matter expertise across cyber architecture domains, ensuring security principles are embedded into application design, cloud services, infrastructure platforms, and data ecosystems. This role partners closely with enterprise architecture, engineering, and delivery teams to ensure secure-by-design outcomes, regulatory compliance, and resilience against emerging threats.

• Assist with the secure design and architecture of enterprise applications, cloud platforms, and infrastructure services, ensuring the protection of sensitive data and critical systems.
• Define and maintain security architecture patterns, reference architectures, and blueprints for IaaS, PaaS, SaaS, and on‑premise environments.
• Conduct architecture reviews, threat modeling, and security risk assessments for enterprise applications, infrastructure platforms, and cloud-hosted solutions.
• Provide leadership and direction in the research, design, planning, and execution of cloud security initiatives to address emerging threats and trends related to generative/Agentic AI, data usage, access governance, monitoring, and misuse, and advising stakeholders on secure and responsible adoption of AI technologies in cloud environments.
• Provide subject‑matter expertise in PCI‑DSS compliance within cloud environments, supporting PCI-DSS scoping, control validation, evidence review, and remediation guidance for cloud‑hosted payment systems and integrated third‑party services.
• Contribute to the development, maintenance, and enforcement of security policies, standards, and guidelines, aligned with industry frameworks and regulatory requirements.
• Partner with enterprise architects, infrastructure teams, application teams, and cloud engineers to embed security into planning, design, and delivery life cycles.
• Provide mentorship, guidance, and security design expertise to technical teams, promoting best practices across application and infrastructure domains.
• Stay current with evolving threats, technologies, and architectural patterns to proactively recommend improvements to the organization’s security posture.
• Contribute to continuous improvement of the enterprise security architecture and long‑term cybersecurity roadmap.

• Post‑secondary degree in Business or Technology or a related discipline.
• Extensive experience in security architecture across enterprise applications, infrastructure, and cloud environments.
• Demonstrated experience performing architecture reviews, threat modeling, and security assessments in complex environments.
• Strong understanding of cloud security frameworks, industry standards, and regulatory requirements (NIST, CSA CCM, CIS, ISO…