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Virtusa

Senior Data Scientist – Ontology, Semantic Modeling

Virtusa

. Design, develop, and maintain formal domain ontologies, taxonomies, and semantic schemas using OWL, RDF, RDFS, and SHACL .

Posted 11/12/2026full-timeRemote • United StatesSeniorWebsite

Core Competencies

Role fit
Core Competencies

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Demonstrates expertise in Ontology Engineering and Semantic Web technologies, with a strong focus on building enterprise ontologies and semantic layers. Proficient in translating complex business rules into structured semantic models while collaborating effectively with cross-functional teams.

Highest-signal resume keywords
Ontology EngineeringSemantic Web TechnologiesPython ProgrammingGraph DatabasesEnterprise Ontologies

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills
OWLRDFRDFSSHACLSPARQLSKOSSemantic StandardsDomain OntologiesSemantic ModelsData Science
Soft Skills
Excellent Communication
Tools & Technologies
DatabricksGraphRAG PipelinesRDF TriplestoresProperty GraphsOperational CRM
Industry Keywords
Life SciencesHealthcareFinanceSupply Chain

Tech Stack

Tools & technologies
Python

About the role

Key responsibilities & impact
  • Design, develop, and maintain formal domain ontologies, taxonomies, and semantic schemas using OWL, RDF, RDFS, and SHACL
  • Translate complex business rules, domain concepts, and entity relationships into structured semantic models
  • Collaborate with Knowledge Graph Engineers and Agentic AI Engineers to ground LLM workflows and GraphRAG pipelines in trusted enterprise context
  • Establish ontology governance, versioning standards, and validation rules across cross-functional data sources
  • Align enterprise semantic layers with Databricks analytical platforms and operational CRM ecosystems

Requirements

What you’ll need
  • 5+ years of experience in Ontology Engineering, Semantic Web technologies, or Knowledge Graph-focused Data Science
  • Hands-on expertise with semantic standards and query languages (OWL, RDF, SPARQL, SHACL, SKOS)
  • Proven experience building enterprise ontologies or semantic layers for complex domains (e. g., Life Sciences, Healthcare, Finance, or Supply Chain)
  • Strong programming skills in Python
  • Familiarity with graph databases (e. g., RDF triplestores or property graphs) and knowledge graph workflows
  • Excellent communication skills to elicit domain knowledge from business stakeholders and translate it into formal specifications