The opportunity
EY’s General Tax Centre of Excellence Data & AI team plays a prominent role in leading client transformation initiatives that leverage Data & AI as core capabilities. The CoE seeks to architect reusable patterns and process blueprints to bootstrap scalability across all the EY Tax technology teams in all key markets. You will have an opportunity to stay on the leading edge of technology development and contribute to the successful transformation of EY Tax and its clients.
Role Purpose
The Data & AI Lead role is responsible for designing and architecting agentic tax workflows, underpinned by AI‑ready data products and robust data engineering.
This Role Sits At The Intersection Of

Tax domain understanding
Data architecture and engineering
Applied AI and agent orchestration

Key Responsibilities

Agentic Workflow & AI Design

Design agentic workflows for tax processes, including:
Task‑level agent responsibilities
Agent‑to‑agent communication patterns
Human‑in‑the‑loop and escalation models
Feedback loops and agent performance monitoring and evaluations
Define reusable agent blueprints aligned to Lean‑derived task definitions
Apply leading edge agentic‑driven design and build methodologies (e.g., use of Codex, Factory AI, GitHub Copilot)





Data Architecture & AI‑Ready Data Products

Design and oversee the build of AI‑ready data marts that:
Expose tax data at the right grain
Maintain lineage and quality controls
Support deterministic and probabilistic reasoning
Lead data ingestion and transformation from:
ERP systems
Tax platforms
Semi‑structured documents
External data sources

Agent Governance & Security

Apply design‑led thinking to embed agent and workflow governance and security
Ensure compatibility and integration with client’s governance models and technology (e.g., Microsoft Agent 365)
Design and embed real‑time controls and risk monitoring

Platform Strategy

Architect solutions deployable within client environments (e.g., ServiceNow with workflow‑orchestrated agents) and within EY‑hosted platforms
Ensure EY retains reusable IP through:
Agent blueprints
Data mart patterns
Orchestration logic
Delivery assets (e.g., design and build agents)
Security & governance blueprints

CoE & Asset Development

Act as technical authority within the CoE
Develop reference architectures, patterns, and accelerators
Support PoCs, pilots, and scaled deployments

Required Experience & Background
(Details not provided)
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📌 Data and AI Lead - Agentic Tax Processes and Platforms (Madrid)
🏢 Universia España
📍 Madrid