Ontology Specialist
Hollstadt Consulting · Minnesota, United States · 4 wk ago
RemoteRemoteConsulting$70/hrContract
About the role
Ontology specialist to design and maintain the knowledge representation that underpins healthcare administrative data. The role translates tacit domain knowledge into formal RDF/OWL structures, aligns with industry standards (FHIR, SNOMED, ICD), and informs how downstream AI and analytics systems reason over the data.
Responsibilities
- Design and maintain ontologies (RDF, OWL, SKOS) for the healthcare administrative domain.
- Map and align internal models against FHIR, SNOMED, and ICD.
- Query and validate the knowledge graph using SPARQL; iterate on representation patterns.
- Codify tacit business knowledge into formal structures, in partnership with domain experts.
- Explain tradeoffs between modeling approaches and recommend a direction.
- Inform graph database design (Neo4j, TypeDB, or similar) and integration with AI systems.
Requirements
- Bachelor's degree and 7+ years in data/knowledge engineering, with significant time in ontology or knowledge representation.
- Hands-on with RDF, OWL, SKOS, or similar.
- Proficiency with SPARQL for querying and manipulating RDF/OWL data.
- Hands-on with an ontology authoring tool (Protégé or equivalent).
- Working knowledge of ontology design patterns.
- Familiarity with healthcare standards (FHIR, SNOMED, ICD) applied to administrative domains.
- Graph database experience (Neo4j, TypeDB, or similar).
- Python and exposure to NoSQL, SQL, and graph databases.
- Familiarity with AI frameworks.
- Pattern codification: Translates tacit business knowledge into formal structures.
- Healthcare context: Understands clinical and administrative domain complexity.
- Industry awareness: Tracks ontology and knowledge graph evolution; brings relevant insights back.
- Experimentation: Tests modeling approaches before committing to architecture; explains tradeoffs from hands-on experience.
- Exposure to reasoners (e.g., HermiT, Pellet, ELK), SHACL for shape/constraint validation, and terminology services (UMLS, terminology servers) is a plus.
Pay
$70/hour W2