Ontology Architect & Knowledge Graph Specialist — TS Clearance

Amatriot Group, LLC; Chantilly (VA); On-site; USD 129,000 - 205,000; Full time

Job summary

Amatriot Group, LLC seeks an Ontology Architect and Knowledge Modeling Specialist (SME) to design enterprise knowledge graphs and ontologies. You will translate business domains into semantic models, enabling interoperability, inference, and scalable metadata management across data platforms.

You will partner with data scientists, software engineers, and AI architects to integrate semantic frameworks with GraphDB and Neo4j, and to align governance workflows with enterprise data quality standards.

Qualifications

• Minimum of 10 years of experience in ontology/knowledge modeling.
• Strong background in semantic web standards OWL, RDF, SHACL.
• Experience with GraphDB or Neo4j and enterprise knowledge graphs.
• Proven ability to design domain ontologies and taxonomies for interoperability.
• Experience integrating semantic models with AI pipelines (RAG, vector search).
• Knowledge governance, metadata management, and data harmonization.

Responsibilities

• Design and implement enterprise knowledge graphs and ontological models.
• Develop domain ontologies, taxonomies, and vocabularies with OWL/RDF/SHACL.
• Model complex relationships for semantic search and entity resolution.
• Collaborate with data scientists and engineers to integrate with GraphDB/Neo4j and AI pipelines.

Skills

Semantic architecture

Knowledge graph design

Ontology development

Taxonomies & vocabularies

OWL, RDF, SHACL

RAG pipelines & vector search

Data governance & validation

Entity resolution & semantic search

Interoperability & metadata management

Tools

GraphDB

Neo4j

Job description

Amatriot Group, LLC seeks an Ontology Architect and Knowledge Modeling Specialist (SME) to design enterprise knowledge graphs and ontologies. You will translate business domains into semantic models, enabling interoperability, inference, and scalable metadata management across data platforms.

You will partner with data scientists, software engineers, and AI architects to integrate semantic frameworks with GraphDB and Neo4j, and to align governance workflows with enterprise data quality standards.