Senior Semantic Data Architect & Ontology Engineer

Evnek Technologies Private Limited; United States; Remote; USD 120,000 - 180,000; Full time

Job summary

Evnek Technologies Private Limited seeks an experienced Knowledge, Ontology & Semantic Modeler with 6-8+ years in ontology engineering, semantic modeling, knowledge graph development, or enterprise data architecture. The role emphasizes designing ontologies, mappings, and governance across enterprise data sources.

You will work with RDF/RDFS/OWL, SPARQL, SKOS, SHACL, and graph databases (Neo4j, GraphDB, Neptune) to enable semantic layers for business queries and AI applications.

Qualifications

• 6-8+ years of experience in ontology engineering, semantic modeling, knowledge graph development, or enterprise data architecture.
• Familiarity with LLMs, RAG, Graph RAG, hybrid retrieval, Python, metadata management, and semantic web libraries will be an added advantage.

Responsibilities

• Design enterprise ontologies, taxonomies, semantic models, and knowledge graphs to unify business meaning across data sources.
• Defining business concepts, entities, relationships, hierarchies, rules, and metrics.
• Developing semantic mappings between source data, canonical models, and business ontologies.
• Implementing entity resolution, semantic enrichment, and ontology alignment.
• Strong knowledge of RDF, RDFS, OWL, SKOS, SPARQL, JSON-LD, and SHACL.
• Experience in graph databases such as Neo4j, GraphDB, or Amazon Neptune.
• Building semantic layers for business queries, knowledge retrieval, and AI applications.
• Establishing semantic governance, validation, lineage, and version management.
• Collaborating with business and technical teams to create reusable semantic models.

Skills

Ontology engineering

Semantic modeling

Knowledge graphs

Enterprise data architecture

LLMs

Graph RAG

Python

Metadata management

Semantic web libraries

Tools

Neo4j

GraphDB

Amazon Neptune

Job description

Evnek Technologies Private Limited seeks an experienced Knowledge, Ontology & Semantic Modeler with 6-8+ years in ontology engineering, semantic modeling, knowledge graph development, or enterprise data architecture. The role emphasizes designing ontologies, mappings, and governance across enterprise data sources.

You will work with RDF/RDFS/OWL, SPARQL, SKOS, SHACL, and graph databases (Neo4j, GraphDB, Neptune) to enable semantic layers for business queries and AI applications.