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