About the role
The Security Architect will be part of a team who’s role is to assure enterprise security architecture with a focus on the review and authorship of Architecture Decision Records (ADRs) and Security Architecture Review Board (SARB) submissions. The role blends deep technical acumen with emerging expertise in Generative AI (GenAI) and agentic systems, ensuring secure design, governance, and responsible adoption of intelligent automation within the enterprise.
Key Responsibilitie
s Architecture Review & Adviso ryLead security reviews of solution and domain architectures, ADRs, and AI-enabled platform s.Assess GenAI and agentic solution designs for model security, data protection, prompt integrity, provenance, and safe orchestration of agent s.Evaluate proposals for alignment with enterprise standards, regulatory expectations, and risk toleranc e.Produce actionable review comments with traceable recommendations, covering both traditional and AI-driven architecture
s.
Authoring & Governa
nceAuthor and maintain ADRs, patterns, and reference architectures—including those covering GenAI system integration, LLM usage, and multi-agent framewor ks.Ensure architectural documentation expresses the problem space, options, controls, and trade-offs clearly and defensib ly.Promote structured architectural reasoning supported by both human and GenAI-assisted analysis workflo
ws.
GenAI & Agentic Secu
rityDefine and assess controls for GenAI systems, includ ing:Model access, data boundary, and prompt injection defen ses.Guardrails for AI agents performing autonomous actions or multi-step reason ing.Secure orchestration, isolation, and human oversight mechani sms.Evaluate the security of agent frameworks, LLM pipelines, and model-hosting platforms (e.g., Vertex AI, Azure Open AI).Contribute to enterprise policy for responsible AI use and GenAI-assisted developm
ent.
Not the right fit? Search for Security Engineer jobs in Ontario, Canada
About Atos
Atos is the services brand of Atos Group, delivering AI powered, secure and end to end digital services to public and private organizations worldwide. Atos designs, builds and run digital environments that are critical to performance, resilience and sovereignty, helping clients keep control of their data, infrastructure and compliance, with clear accountability from strategy to operations. With more than 54,000 people serving 4,500+ clients in 54 countries, Atos helps modernize core IT, accelerate cloud and data transformation, strengthen cybersecurity and enable secure digital workplaces, delivering impact for clients, employees and society at large. Atos offers end-to-end IT services across the cloud, cybersecurity, data and AI, application services, smart platforms and digital workplace, as well as localized consulting and advisory services under its brand Atos Amplify. Atos is trusted to operate complex, business-critical environments, especially in regulated and sovereign contexts.
Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris.
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About the role
The Security Architect will be part of a team who’s role is to assure enterprise security architecture with a focus on the review and authorship of Architecture Decision Records (ADRs) and Security Architecture Review Board (SARB) submissions. The role blends deep technical acumen with emerging expertise in Generative AI (GenAI) and agentic systems, ensuring secure design, governance, and responsible adoption of intelligent automation within the enterprise.
Key Responsibilitie
s Architecture Review & Adviso ryLead security reviews of solution and domain architectures, ADRs, and AI-enabled platform s.Assess GenAI and agentic solution designs for model security, data protection, prompt integrity, provenance, and safe orchestration of agent s.Evaluate proposals for alignment with enterprise standards, regulatory expectations, and risk toleranc e.Produce actionable review comments with traceable recommendations, covering both traditional and AI-driven architecture
s.
Authoring & Governa
nceAuthor and maintain ADRs, patterns, and reference architectures—including those covering GenAI system integration, LLM usage, and multi-agent framewor ks.Ensure architectural documentation expresses the problem space, options, controls, and trade-offs clearly and defensib ly.Promote structured architectural reasoning supported by both human and GenAI-assisted analysis workflo
ws.
GenAI & Agentic Secu
rityDefine and assess controls for GenAI systems, includ ing:Model access, data boundary, and prompt injection defen ses.Guardrails for AI agents performing autonomous actions or multi-step reason ing.Secure orchestration, isolation, and human oversight mechani sms.Evaluate the security of agent frameworks, LLM pipelines, and model-hosting platforms (e.g., Vertex AI, Azure Open AI).Contribute to enterprise policy for responsible AI use and GenAI-assisted developm
ent.
Not the right fit? Search for Security Engineer jobs in Ontario, Canada
About Atos
Atos is the services brand of Atos Group, delivering AI powered, secure and end to end digital services to public and private organizations worldwide. Atos designs, builds and run digital environments that are critical to performance, resilience and sovereignty, helping clients keep control of their data, infrastructure and compliance, with clear accountability from strategy to operations. With more than 54,000 people serving 4,500+ clients in 54 countries, Atos helps modernize core IT, accelerate cloud and data transformation, strengthen cybersecurity and enable secure digital workplaces, delivering impact for clients, employees and society at large. Atos offers end-to-end IT services across the cloud, cybersecurity, data and AI, application services, smart platforms and digital workplace, as well as localized consulting and advisory services under its brand Atos Amplify. Atos is trusted to operate complex, business-critical environments, especially in regulated and sovereign contexts.
Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris.