Knowledge Graph Engineer

Role: Ontology / Knowledge Graph Engineer

Location: Berkeley Heights, NJ (5 Days Onsite)

We are seeking an experienced Ontology/Knowledge Graph Engineer with strong expertise in ontology engineering, semantic technologies, and knowledge graph development. The ideal candidate will design, develop, and maintain ontologies and knowledge graph solutions using RDF/OWL standards and graph database technologies.

Required Skills:

• Ontology Engineering & Knowledge Modeling
• OWL, RDF, SPARQL, SHACL, JSON-LD
• Ontological Inference & Consistency Checking
• Knowledge Graph Design and Semantic Modeling
• Entity Resolution & Graph Analytics
• Property Graphs and RDF Graphs

Tools & Technologies:

• Protégé, TopBraid Composer, OntoStudio
• Neo4j, Stardog, GraphDB
• Apache Jena, Fuseki, Blazegraph, Virtuoso

Responsibilities:

• Design and develop enterprise ontologies and knowledge graphs
• Build semantic data models and ontology-driven KG architectures
• Implement reasoning, inference, and consistency validation
• Develop SPARQL queries and semantic integrations
• Perform entity resolution and graph analytics