Senior Domain Architect – AI (Post‑Sales)

About the role

You will be a strategic architect within the EY Fabric post‑sales organization, responsible for defining repeatable AI and GenAI architecture patterns that enable large‑scale adoption. The focus is on creating reusable, governed solutions rather than bespoke implementations.

Key responsibilities

• Define EY Fabric AI reference architectures covering AI Factory, OpenAI integrations, GenAI workloads, model orchestration, evaluation, monitoring and lifecycle management.
• Create repeatable design patterns and accelerators for common post‑sales scenarios such as GenAI onboarding, secure model access, prompt orchestration and RAG‑style solutions.
• Maintain AI architecture assets in EY knowledge repositories and measure effectiveness through adoption metrics.
• Act as senior escalation point for complex AI architecture questions and mentor mid‑level AI architects.

Required profile

• 10+ years of engineering experience with recent GenAI architecture work.
• Strong background designing and governing production AI/ML/GenAI systems.
• Experience collaborating across product, engineering, security, risk and delivery teams.

Required skills

• AI Factory concepts and OpenAI‑style integrations
• Model orchestration, Retrieval‑Augmented Generation (RAG) patterns, evaluation and monitoring
• Cloud architecture fundamentals (identity, networking, security, logging, observability)
• Responsible AI, data governance, security and operational controls