Hybrid Senior Ontology Leader and Knowledge Graph Architect

GEP Worldwide; Clark (NJ); Hybrid; USD 190,000 - 220,000; Full time

Benefits offered by this job

Comprehensive medical, dental, and视觉—?

401(k) with a 3% company match

Paid time off and company holidays

Professional development opportunities

Job summary

GEP Worldwide is seeking a Senior Ontology Leader to own and evolve the procurement ontology end-to-end, leading ontologists and knowledge engineers across Consulting, Product, Engineering and AI. You will shape architecture, standards, and governance while staying hands-on to address complex modeling and AI use cases.

Ideal candidates bring 15+ years in knowledge engineering, expertise in RDF/OWL/SKOS/SHACL, and a proven track record guiding enterprise ontologies that scale across teams.

Qualifications

• 15+ years in knowledge engineering, semantic technology or information architecture.
• 8+ years building production ontologies or knowledge graphs.
• 5+ years leading teams.

Responsibilities

• Lead the Ontology and the team: vision, roadmap and modeling architecture for procurement ontology.
• Collaborate with Consulting, Product, Engineering and AI to drive adoption and governance.
• Solve AI and knowledge use cases with hands-on contributions to SPARQL, Cypher, SHACL and graph-based retrieval.
• Build the governance and maintenance framework including ownership, versioning and release cadence.

Skills

Knowledge engineering

Semantic technology

Information architecture

Leadership

Python

Pipelines

Education

Degree in Computer Science or Information Science

Tools

Protégé

TopBraid

PoolParty

GraphDB

Apache AGE

Oxigraph

Apache Jena

Job description

GEP Worldwide is seeking a Senior Ontology Leader to own and evolve the procurement ontology end-to-end, leading ontologists and knowledge engineers across Consulting, Product, Engineering and AI. You will shape architecture, standards, and governance while staying hands-on to address complex modeling and AI use cases.

Ideal candidates bring 15+ years in knowledge engineering, expertise in RDF/OWL/SKOS/SHACL, and a proven track record guiding enterprise ontologies that scale across teams.