Ontology Architect (AI)

Location: Remote from Ukraine

Company

hirify.global delivers engineering and technology services focused on data, analytics, semantic solutions, and software development.

What you will do

• Design, develop, and maintain domain, mapping, and integration ontologies.
• Translate complex business and domain knowledge into structured, machine-readable semantic models.
• Define classes, properties, relationships, taxonomies, identifiers, mappings, transformation rules, and validation logic.
• Map heterogeneous enterprise data and application concepts into reusable, tool-independent business objects.
• Build test cases and improve the traceability, testability, and maintainability of semantic models.
• Collaborate with engineers and domain experts to integrate semantic solutions with knowledge graphs, APIs, AI/LLM systems, and analytical platforms.

Requirements

• Strong practical experience with ontology engineering and semantic modeling.
• Strong understanding of RDF and knowledge graph concepts, with hands-on experience using SPARQL and semantic query languages.
• Experience designing domain ontologies, mapping ontologies, taxonomies, and semantic relationships.
• Experience mapping heterogeneous enterprise data models and defining identity, equivalence, classification, and validation logic.
• Understanding of semantic interoperability and metadata-driven integration.
• Strong communication skills and the ability to explain complex semantic models to technical and non-technical stakeholders.

Culture & Benefits

• Remote work arrangement from Ukraine.
• Collaboration across multiple engineering, business, and domain teams.
• Equal opportunity employment.