Architect - Ontologist / Knowledge Modeler

Job Title: Architect - Ontologist / Knowledge Modeler Job Title: Ontologist / Knowledge Modeler Location: Dallas, TX (Onsite) Job Type: Full Time Experience: 5+ years Job Overview Our client is seeking an experienced Ontologist / Knowledge Modeler to drive the design and implementation of knowledge graphs, ontologies, and data models. The ideal candidate brings hands-on expertise with graph database technologies and open-source tools to build scalable, interoperable solutions aligned with financial industry standards such as BIAN and MISMO. Key Responsibilities Develop ontologies and taxonomies using Apache Jena and RDF4J; build and refine knowledge graphs aligned with BIAN and MISMO standards Design scalable linked data and semantic model architectures integrating multiple data sources Ensure data interoperability using RDF and OWL; design metadata schemas and common data vocabularies Use Protégé and TopBraid Composer to define and manage ontology structures Integrate Neo4j, ArangoDB, and Blazegraph for data querying; leverage SPARQL endpoints and GraphDB/JanusGraph for analytics Collaborate with AI/ML teams for NLP and contextual data retrieval via knowledge graphs Required Skills RDF/OWL, SPARQL, and knowledge graph platforms (Neo4j, ArangoDB, Blazegraph) Apache Jena, RDF4J, GraphDB, JanusGraph Knowledge graph visualization: Graphistry, Gephi Protégé, TopBraid Composer Python or Java for custom graph applications BIAN and MISMO industry standards Preferred Skills Healthcare or regulatory standards knowledge Certifications in ontology management or data standards Location & Work Model Dallas, TX - Onsite from Day 1 Engagement Details Full Time | Permanent role with our client's AI Practice team Inficare