Senior Ontology & Knowledge Graph Engineer

2T Consulting

Bedminster Township (NJ)

On-site

USD 87,000 - 171,000

Full time

4 days ago

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Benefits offered by this job

Vacation 120 hours

Sick time 40 hours

Holiday pay

Parental leave

Bereavement leave

Volunteer leave

Long-term incentive program

Job summary

2T Consulting is seeking an Ontology / Knowledge Graph Engineer to design and implement ontology-driven knowledge graphs. You will work on semantic modeling, establish governance, and collaborate with data teams to align ontologies with business needs.

The role requires hands-on experience with OWL, RDF, SPARQL, SHACL, and JSON-LD, plus proficiency in ontology inference and data consistency checks. Strong experience with Protégé and graph platforms is expected.

Qualifications

Experience designing ontology-driven knowledge graphs using OWL, RDF, SPARQL, SHACL, and JSON-LD.
Hands-on experience with ontology inference and consistency checking.

Responsibilities

Design, develop, and maintain enterprise ontologies and semantic models.
Build ontology-driven Knowledge Graph solutions aligned with business and technical requirements.
Develop and manage RDF-based knowledge graphs using OWL, RDF, SPARQL, SHACL, and JSON-LD.
Implement ontological inference and reasoning capabilities.
Perform consistency checking and validation of ontologies and knowledge graph data.
Develop graph data models supporting RDF and property graph architectures.
Implement entity resolution and semantic relationships across data sources.
Perform graph analytics to derive insights from connected data.
Use Protégé, TopBraid Composer, Stardog, GraphDB, Neo4j, and Apache Jena.
Collaborate with data engineers, architects, and stakeholders to define semantic requirements and standards.
Establish ontology governance, versioning, validation, and KG quality practices.