Senior AI Data Architect - Semantic Layer & Governance

Hitachi; Texas; On-site; USD 140,000 - 200,000; Full time

Job summary

Hitachi Digital Services is seeking an AI Data Architect to design semantic, governance, and knowledge layers enabling AI agents to operate on trusted, well-structured data assets. You will define entitlements, data lineage, and governance frameworks while applying domain-driven modeling in complex data ecosystems.

You will lead architecture decisions, collaborate with SMEs, and deliver scalable data products across enterprise environments, with a focus on governance and data quality.

Qualifications

• 12+ years in data architecture, data engineering, or analytics architecture.
• Proven delivery of enterprise semantic layer, knowledge graph, or governed data product.
• Experience leading workshops with SMEs and presenting to senior leadership.

Responsibilities

• Design metrics layer, ontology framework, search indexes, and business glossary.
• Evaluate data readiness across scope, freshness, quality, governance, and usability.
• Elicit business rules from SMEs and translate into scalable models.
• Define data lineage standards and agent identity requirements.

Skills

Semantic modeling

Domain-driven design

Data governance

Tools

Databricks

Delta Lake

Unity Catalog

PySpark

RDF/OWL

Neo4j

Kafka

Amazon MSK

Job description

Hitachi Digital Services is seeking an AI Data Architect to design semantic, governance, and knowledge layers enabling AI agents to operate on trusted, well-structured data assets. You will define entitlements, data lineage, and governance frameworks while applying domain-driven modeling in complex data ecosystems.

You will lead architecture decisions, collaborate with SMEs, and deliver scalable data products across enterprise environments, with a focus on governance and data quality.