Senior Semantic Data Architect for AI & Governance

Hitachi Automotive Systems Americas, Inc.; Dallas (TX); On-site; USD 180,000 - 240,000; Full time

Job summary

Hitachi Digital Services in Dallas, TX seeks a Data and Context Architect to design the semantic, knowledge, and governance layers that enable AI agents to operate on trusted, well-structured data assets. You will design the metrics layer, ontology framework, search indexes, and business glossary, and drive data readiness across scope, freshness, quality, governance, and usability.

Requirements include 12+ years in data architecture or analytics, delivering enterprise semantic layers or

Qualifications

• 12+ years of experience in data architecture or analytics architecture.
• Proven delivery of at least one enterprise-scale semantic layer, knowledge graph, or governed data product.
• Experience leading requirements workshops with business SMEs and presenting architectural recommendations to senior leadership.

Responsibilities

• Design and develop the semantic, knowledge, and governance layers for AI agents.
• Design the metrics layer, ontology framework, search indexes, and business glossary.
• Establish entitlement frameworks, data lineage standards, and agent identity requirements.
• Define governance and data readiness across dimensions like scope, freshness, quality, and usability.

Skills

Databricks / Lakehouse

Semantic layer design

Knowledge graphs / RDF

Vector databases / semantic search

Data governance

Event-driven architectures (Kafka/MSK)

Data quality management

Tools

Databricks

PySpark

Unity Catalog

Neo4j

RDF/OWL

Kafka

Amazon MSK

Job description

Hitachi Digital Services in Dallas, TX seeks a Data and Context Architect to design the semantic, knowledge, and governance layers that enable AI agents to operate on trusted, well-structured data assets. You will design the metrics layer, ontology framework, search indexes, and business glossary, and drive data readiness across scope, freshness, quality, governance, and usability.

Requirements include 12+ years in data architecture or analytics, delivering enterprise semantic layers or