InterImage
Senior Ontology Engineer
$175K–$243K
Arlington, Virginia · Remote · Senior · Full-time · Posted Sep 8, 2026
- Experience
- 5+ years of hands-on semantic-technology work.
About the job
Designs and maintains enterprise ontologies and knowledge graphs that connect governed technical data to retrieval and generative AI applications.
What you'll do
- Design and maintain an enterprise ontology, controlled vocabularies, and mappings from source-system data.
- Build and manage a knowledge graph, including ingestion, provenance, validation, and queries.
- Develop Python services, APIs, web UI, and AWS components, and connect structured knowledge to retrieval and GenAI applications.
What they ask for
- Active Secret or Top Secret clearance.
- 5+ years of hands-on semantic-technology work with OWL, RDF/Turtle, SHACL, and SPARQL.
- Production experience with a triple store such as Apache Jena/Fuseki, RDF4J, or similar.
- Solid software engineering with Python, APIs, and Git; full-stack capability and working familiarity with LLMs and RAG.
Nice to have
- Experience building ontologies aligned to BFO and CCO; these are strongly preferred.
Pay
175,315 - 242,800 (base salary; currency not stated)
Tools
BFO, CCO, OWL, RDF/Turtle, SHACL, SPARQL, Apache Jena/Fuseki, Python
AI focus
Connect the knowledge graph to retrieval and GenAI applications, including LLMs and RAG.
Model-written summary · the original posting is authoritative