Cloud Systems Architect

Business Unit Regular, Full time Closing Date:
July 24, 2026

The Ontario Securities Commission (OSC) regulates Ontario’s capital markets in line with the provincial Securities Act and the Commodity Futures Act. OSC’s mandate is to protect investors, foster fair and efficient capital markets, and support financial stability. CSA ITSO delivers secure, reliable technology for regulatory operations and is responsible for cloud adoption, platform modernization, and operational excellence.

This Cloud Systems Architect reports to the Manager of Platform Services and will implement OSC’s cloud strategy, standards, guardrails, and target-state architecture. The role translates approved architecture principles into secure, scalable and resilient cloud solutions and enables application, data and infrastructure teams to adopt cloud platforms, tooling and delivery practices in alignment with enterprise guardrails.

• Implement CSA ITSO’s defined cloud strategy, architecture standards, guardrails and roadmap in collaboration with enterprise architecture, security, infrastructure and delivery teams.
• Design and deploy secure cloud landing zones, subscriptions/accounts, identity integration, connectivity, logging, monitoring and recovery capabilities in alignment with approved enterprise patterns and compliance requirements.
• Assess and execute the migration and modernization of workloads from on-premises environments to cloud platforms using approved approaches such as rehost, replatform, refactor, replace or retire.
• Implement infrastructure, platform and SaaS services based on established target-state and transitional architectures, with a preference for reusable, supportable and well-governed solutions.
• Build and maintain reusable templates, automation and deployment pipelines for cloud provisioning using infrastructure as code and policy as code.
• Apply cloud governance controls related to identity, networking, encryption, secrets management, backup, disaster recovery, tagging, cost management and lifecycle management.
• Work with cybersecurity and risk teams to implement secure configuration baselines, vulnerability management, Zero Trust controls and continuous compliance practices within cloud services and delivery pipelines.
• Enable CI/CD and Dev Sec Ops  implementation patterns across teams by integrating build, test, deployment and release controls into delivery pipelines.
• Improve service reliability and operational readiness through observability, alerting, incident response, performance tuning, resiliency design and automated recovery mechanisms.
• Support architecture reviews, technical evaluations and implementation planning for cloud, SaaS and third‑party platform services in accordance with enterprise direction and procurement processes.
• Provide technical guidance and day‑to‑day coaching to infrastructure and delivery teams to help them adopt approved cloud standards, tools and operational practices.
• Document solution designs, build standards, implementation procedures, support models and operational runbooks to ensure sustainable delivery and support.
• Work with operations, service management and vendors to resolve cloud platform issues, coordinate changes and maintain service levels.
• Identify implementation risks, dependencies and knowledge gaps, and escalate or recommend practical mitigations to support successful delivery.

• Degree in Computer Science, Engineering or a related discipline, or an equivalent combination of education and experience.
• 7+ years of progressive experience in enterprise infrastructure, cloud architecture, systems engineering and/or platform engineering, including the implementation of secure production cloud environments.
• Hands‑on experience implementing and operating services in at least one major public cloud platform; experience across Azure and AWS is strongly preferred.
• Strong expertise in cloud implementation domains such as identity and access management, networking, compute, storage, containers, observability, backup/recovery and security controls.
• Experience migrating and modernizing enterprise workloads using cloud adoption…