Ontology / Knowledge Graph Engineer

Job Overview:

We are seeking a highly skilled Ontology / Knowledge Graph Engineer to design, develop, and manage enterprise-scale knowledge graphs and ontologies. The ideal candidate will have strong expertise in semantic technologies, graph data modeling, and ontology-driven knowledge systems.

Key Responsibilities:

• Design and develop ontologies and knowledge graphs for complex data domains
• Build and manage RDF/Property graph-based data models
• Implement semantic models using OWL, RDF, and SHACL
• Develop and optimize SPARQL queries for data retrieval and analytics
• Perform ontological inference, reasoning, and consistency checks
• Work on entity resolution and semantic data integration
• Collaborate with cross-functional teams to translate business requirements into knowledge models
• Support graph analytics and insights generation

Required Skills:

• Strong experience in Ontology Engineering & Knowledge Modeling
• Expertise in OWL, RDF, SPARQL, SHACL, JSON-LD
• Hands-on experience with Knowledge Graphs (RDF & Property Graphs)
• Experience in Graph Data Modeling & Semantic Modeling
• Knowledge of Ontological Inference & Consistency Checking
• Experience with Entity Resolution

Technologies:

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