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EY-Consulting - Data and Analytics - Semantic Data Architect - / Semantic Data Architect / Knowledge Graph Architect-Manager

EY's Consulting Services is a unique, industry-focused business unit that provides a broad range of integrated services that leverage deep industry experience with strong functional and technical capabilities and product knowledge. EY's financial services practice provides integrated Consulting services to financial institutions and other capital markets participants, including commercial banks, retail banks, investment banks, broker-dealers & asset management firms, and insurance firms from leading Fortune 500 Companies. Within EY's Consulting Practice, Data and Analytics team solves big, complex issues and capitalise on opportunities to deliver better working outcomes that help expand and safeguard the businesses, now and in the future. This way we help create a compelling business case for embedding the right analytical practice at the heart of client's decision-making.

Role

Semantic Data Architect Experience Guide

Guide / 10+ years Primary Skill Area
Knowledge Graphs, Semantic Modelling, Enterprise Data Modelling & AI Data Platforms

The opportunity

Lead the design and implementation of enterprise-scale semantic data platforms that enable advanced analytics, AI, Knowledge Graphs, intelligent data discovery and governed enterprise data modelling. The role combines strong data modelling, semantic architecture, ontology engineering, knowledge graph design, Microsoft Fabric data platform architecture, metadata governance and AI-ready information architecture. The candidate must be able to bridge business concepts, enterprise data assets, semantic models, knowledge graphs, vector search and LLM-enabled retrieval frameworks.

Your key responsibilities

Semantic Architecture & Knowledge Modelling

Develop domain ontologies using RDF/OWL, taxonomies, controlled vocabularies, SKOS concept schemes and semantic models to standardise business knowledge representation.
Collaborate with Business Analysts, Data Architects, domain SMEs and stakeholders to elicit business concepts, align semantic definitions and translate requirements into ontology-driven models.
Establish semantic governance processes, metadata standards, ontology lifecycle management and reusable semantic modelling patterns.
Define semantic standards that connect business glossaries, domain concepts, enterprise data assets and AI-ready knowledge structures.

Data Modelling & Enterprise Information Architecture

Lead conceptual, logical and physical data modelling across enterprise domains, ensuring data entities, relationships, hierarchies, cardinality, keys, constraints and business definitions are clearly captured and governed.
Create and maintain enterprise data models, canonical data models, domain models, dimensional models and semantic models that align business terminology with analytical, lakehouse, relational and graph-based data structures.
Translate business requirements into robust information models and data structures that support Microsoft Fabric Semantic Models, Power BI semantic layers, Knowledge Graphs, GraphRAG, enterprise search and AI-ready data products.
Apply strong modelling disciplines including normalisation, denormalisation, star/snowflake schema design, slowly changing dimensions, reference/master data modelling, metadata modelling and model version management.
Partner with business SMEs, architecture teams, data stewards and engineering teams to ensure data models are reusable, governed, explainable, lineage-aware and aligned with enterprise data governance standards.

Knowledge Graph Development

Design and implement enterprise Knowledge Graph solutions that model business entities, relationships, hierarchies, dependencies and contextual knowledge.
Build semantic layers that support AI, intelligent search, recommendations, GraphRAG architectures and contextual knowledge retrieval.
Integrate structured, semi-structured and unstructured data into enterprise knowledge graphs.
Guide graph data modelling patterns for business domains, relationships, hierarchies, dependencies and reusable knowledge assets.

Microsoft Fabric & Data Platform Architecture

Design enterprise semantic architectures using Microsoft Fabric as the operational platform for data integration, governance, analytics and AI-driven business insights.
Architect Lakehouse, Data Warehouse, OneLake and Semantic Models within the Microsoft Fabric ecosystem.
Establish metadata-driven and domain-oriented data architecture patterns that connect lakehouse data products, semantic layers, AI retrieval and governance workflows.
Partner with data engineering teams to ensure semantic assets are operationalised through reliable, governed and scalable data platform patterns.

AI & Advanced Analytics Enablement

Enable AI and Generative AI solutions through semantic enrichment, contextualised data models and ontology-driven knowledge assets.
Support GraphRAG, Retrieval-Augmented Generation, enterprise search, semantic search and intelligent agents.
Design semantic frameworks that improve LLM grounding, explainability, traceability and enterprise knowledge retrieval.
Partner with AI engineering teams to ensure semantic structures are AI-ready, governed and usable for enterprise retrieval and decision-support use cases.

Governance & Architecture Leadership

Define enterprise standards, policies and governance frameworks for ontology management, semantic models, taxonomies and knowledge graph assets using platforms such as Microsoft Purview and Collibra.
Provide technical leadership across architecture, engineering, AI, governance and business teams.
Conduct architecture reviews and establish best practices for semantic technologies, enterprise data modelling and AI-ready data ecosystems.
Mentor architects, engineers and data stewards on semantic modelling, knowledge graph design and governed data modelling approaches.

Skills and attributes for success

Skill / capability area - Details

Semantic technologies - RDF, OWL, Ontologies, SKOS, Taxonomies, Controlled Vocabularies, Semantic Web, Semantic Modelling, Ontology Engineering.
Data modelling - Conceptual Data Modelling, Logical Data Modelling, Physical Data Modelling, ER Modelling, Dimensional Modelling, Canonical Models, Domain Models, Data Dictionary, Metadata Modelling.
Knowledge graphs - Knowledge Graphs, Graph Data Modelling, Neo4j, Amazon Neptune, GraphDB, GraphRAG, Semantic Search, Enterprise Search, Relationship Modelling, Hierarchies.
Data platform architecture - Microsoft Fabric, OneLake, Lakehouse, Data Warehouse, Data Factory, Semantic Models, Power BI Semantic Layer, Lakehouse Architecture, AI-ready Data Products.
AI and advanced analytics - GraphRAG, RAG, Vector Search, LLM Grounding, AI Knowledge Retrieval, Intelligent Agents, GenAI Enablement, Explainability, Traceability.
Governance and metadata - Microsoft Purview, Collibra, Metadata Management, Business Glossaries, Data Lineage, Data Quality Rules, Ontology Lifecycle Management, Semantic Governance.

To qualify for the role, you must have

Relevant experience guide: Guide / 10+ years
10+ years of experience in Data Architecture, Data Engineering, Enterprise Information Management or enterprise data modelling-led architecture roles.
5+ years of hands-on experience in semantic technologies, knowledge modelling and enterprise data modelling.
Hands-on experience with Microsoft Fabric, semantic models, Power BI semantic layer, conceptual/logical/physical data modelling, RDF/OWL ontology engineering, Knowledge Graph platforms and governance platforms such as Microsoft Purview or Collibra.
Preferred experience with data modelling tools such as ER/Studio, Erwin, SAP PowerDesigner, Hackolade or equivalent.

Ideally, you'll also have

Architect by mindset, with strong ability to connect business concepts, data models, semantic assets and AI-ready knowledge structures.
Strong stakeholder engagement skills with the ability to work across business SMEs, data architects, data engineers, AI engineers and governance teams.
Comfortable defining semantic standards, ontology governance, knowledge graph design patterns and enterprise data modelling practices.
Able to create explainable, lineage-aware and governed semantic foundations for analytics, GraphRAG, enterprise search and AI-enabled decision support.
Domain experience in Wealth and Asset Management with solid understanding of platform for ex Aladdin, Investrans, eFront etc, position, security master, IBOR, ABOR, benchmark performance etc.
This role is not only an ontology or knowledge graph specialist. It is a Semantic Data Architect who connects enterprise data modelling, semantic architecture, knowledge graphs, metadata governance and AI-ready data foundations to make enterprise knowledge usable by analytics, search and AI systems.

What we look for

Architect by mindset, with strong ability to connect business concepts, data models, semantic assets and AI-ready knowledge structures.
Strong stakeholder engagement skills with the ability to work across business SMEs, data architects, data engineers, AI engineers and governance teams.
Comfortable defining semantic standards, ontology governance, knowledge graph design patterns and enterprise data modelling practices.
Able to create explainable, lineage-aware and governed semantic foundations for analytics, GraphRAG, enterprise search and AI-enabled decision support.
Domain experience in Wealth and Asset Management with solid understanding of platform for ex Aladdin, Investrans, eFront etc, position, security master, IBOR, ABOR, benchmark performance etc.

What working at EY offers

At EY, we're dedicated to helping our clients, from start-ups to Fortune 500 companies, and the work we do with them is as varied as they are.

You get to work with inspiring and meaningful projects. Our focus is education and coaching alongside practical experience to ensure your personal development. We value our employees and you will be able to control your own development with an individual progression plan. You will quickly grow into a responsible role with challenging and stimulating assignments. Moreover, you will be part of an interdisciplinary environment that emphasises high quality and knowledge exchange. Plus, we offer:

Support, coaching and feedback from some of the most engaging colleagues around
Opportunities to develop new skills and progress your career
The freedom and flexibility to handle your role in a way that's right for you

EY | Building a better working world

EY exists to build a better working world, helping to create long-term value for clients, people and society and build trust in the capital markets.

Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform and operate.

Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to find new answers for the complex issues facing our world today.

EY - GDS Consulting - AI And DATA -Semantic Data Architect- Manager

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