Ontology Architect and Knowledge Modeling Specialist - SME

Accenture Federal Services • Chantilly, VA

11d

About The Position

Accenture Federal Services is seeking a seasoned Semantic Architect to lead the architecture, design, and implementation of enterprise knowledge graphs and ontological models. The role transforms unstructured data into interconnected, machine-readable intelligence to support advanced semantic search and AI capabilities. The specialist works across business and technical domains to develop semantic models and frameworks, enable interoperability and inference, and integrate semantic capabilities with enterprise graph databases and AI pipelines.

Requirements

• U.S. citizenship and an active TS/SCI CIP clearance.
• Bachelor’s degree.
• 10 years of experience in semantic architecture or a related field.
• Proficiency in semantic web standards and tools such as OWL, RDF, and SHACL.
• Experience with enterprise graph databases, such as GraphDB or Neo4j.
• Strong collaboration skills with cross-functional teams.
• Expertise in designing and implementing semantic schemas and frameworks.
• Familiarity with modern AI pipelines, including Retrieval-Augmented Generation and vector search structures.

Responsibilities

• Engineer domain-specific ontologies, taxonomies, and controlled vocabularies using semantic web standards such as OWL, RDF, and SHACL.
• Design semantic schemas to ensure cross-system interoperability, advanced inference, and robust metadata management.
• Collaborate with data scientists, software engineers, and AI architects to integrate semantic frameworks with enterprise graph databases and AI pipelines.
• Establish data governance, validation workflows, and data harmonization pipelines to enforce data quality and eliminate information silos.
• Translate complex business domains into structured semantic models to enable entity resolution and context-aware AI capabilities.

Benefits

• A collaborative and caring community with opportunities to grow and learn through hands-on experience, certifications, and industry training.
• A wide variety of benefits; specific benefits are not listed in the posting.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior