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 secure 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.

📌 Senior Security Engineer (Ontario)
🏢 Atos
📍 Ontario