CareerPlanGet AI match score →

Ontology Engineer (TS/SCI)

Herndon, VA💼 Full-time💰 $137,000–$137,000🗓 2026-07-02 → 2026-07-31

Core

Design, develop, and maintain domain-specific ontologies and knowledge models to support Object-Based Intelligence (OBI) mission requirements, enabling data interoperability and advanced analytics for government stakeholders.

Role type

Senior Ontology Lead (Semantic Web & Knowledge Engineering)

Builds

Scalable knowledge frameworks, semantic data integration systems, and structured knowledge representations for AI/ML applications.

Domain

Defense Intelligence / Semantic Web / Knowledge Graphs

Deliverable

production ML models | dashboards & analysis | infrastructure

Required skills

Ontology design and implementation, Semantic Web standards (RDF, OWL, SPARQL, SHACL), Knowledge graph modeling, Data modeling principles, Semantic interoperability frameworks, Technical leadership and mentoring

Preferred skills

Enterprise knowledge graph development, AI/ML workflow integration, Formal knowledge transfer to government teams, Data architecture certification (CDMP), Knowledge management certification (CKM)

Technologies

RDF, OWL, SPARQL, SHACL, Knowledge Graphs

Responsibilities

Design and maintain domain-specific ontologies and taxonomies for OBI missions; Apply Semantic Web standards to model complex data relationships; Establish semantic data integration frameworks; Collaborate with analysts and engineers to translate mission needs into knowledge models; Develop ontology governance processes and documentation; Support AI/ML initiatives with structured knowledge representations; Conduct ontology validation, testing, and quality assurance.

Seniority

Senior, hands-on IC with technical leadership

Sourced via workday · Listed on CareerPlan, which tracks 70,000+ jobs from 20+ sources.
Apply on Workday ↗