Ontology Architect (f/m/d)

UNIQA Group; Wien; On-site; EUR 63,000 - 77,000; Full time

Benefits offered by this job

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Job summary

UNIQA IT Services GmbH invites you to join as Ontology Architect (f/m/d) in Vienna. You will own enterprise ontology architecture, ensure semantic models, knowledge graphs, vocabularies, and alignment with enterprise architecture and the Agentic AI Platform.

You will define standards, governance, integration patterns, and patterns that combine semantic context with documents and data. Strong expertise in ontology engineering and RDF/OWL/SKOS/SHACL/SPARQL is required; insurance domain experience

Qualifications

• Proven experience in enterprise, information, data, or semantic architecture within complex enterprise environments.
• Deep expertise in ontology engineering, knowledge graphs, semantic modelling, taxonomies, controlled vocabularies, and enterprise information models.
• Strong knowledge of RDF, OWL, SKOS, SHACL, SPARQL, validation, provenance, and related semantic standards.

Responsibilities

• Define and maintain the target architecture for enterprise ontologies, knowledge graphs, controlled vocabularies, semantic services, and ontology-driven AI capabilities.
• Establish the ontology layering model across enterprise, domain, country, and use case levels, including ownership, inheritance, extension, localization, and reuse principles.
• Define standards for semantic modelling, classifications, relationships, constraints, naming, versioning, validation, provenance, and lifecycle management.
• Drive the integration of ontologies and knowledge graphs with the Agentic AI Platform, including GraphRAG, Vector RAG, agent runtime, MCP tools, memory, and source-system access.

Job description

As one of the leading insurance companies, we know that together we can achieve more. At UNIQA, we are therefore the community for a better life. We use our individual skills to shape a better future together. Tell us about your strengths and apply at UNIQA IT Services GmbH (UITS), the IT service provider of the UNIQA Group, as Ontology Architect (f/m/d).

Own the enterprise ontology architecture and ensure semantic models, knowledge graphs, vocabularies, and related capabilities are consistent, reusable, and aligned with enterprise architecture and the Agentic AI Platform. Define the principles, standards, governance, and integration patterns needed to scale ontology-based knowledge across the organization.

What to expect:

• Define and maintain the target architecture for enterprise ontologies, knowledge graphs, controlled vocabularies, semantic services, and ontology-driven AI capabilities
• Establish the ontology layering model across enterprise, domain, country, and use case levels, including ownership, inheritance, extension, localization, and reuse principles
• Define standards for semantic modelling, classifications, relationships, constraints, naming, versioning, validation, provenance, and lifecycle management
• Drive the integration of ontologies and knowledge graphs with the Agentic AI Platform, including GraphRAG, Vector RAG, agent runtime, MCP tools, memory, and source-system access
• Define patterns that combine semantic context with documents, operational and analytical data, process context, and agent runtime state
• Review ontology designs, semantic integration concepts, graph models, and domain or country extensions to ensure alignment with enterprise standards
• Identify reusable concepts and semantic patterns while ensuring standardization only where cross-domain or cross-country reuse provides value
• Maintain reference architectures, implementation guidance, architecture decisions, non-functional requirements, and technology assessments for ontology and graph capabilities

What we expect:

• Proven experience in enterprise, information, data, or semantic architecture within complex enterprise environments
• Deep expertise in ontology engineering, knowledge graphs, semantic modelling, taxonomies, controlled vocabularies, and enterprise information models
• Strong knowledge of RDF, OWL, SKOS, SHACL, SPARQL, validation, provenance, and related semantic standards
• Experience designing layered and federated architecture models across enterprise, domain, country, and use case levels
• Strong understanding of ontologies, data models, source-system models, physical schemas, and graph-based representations
• Knowledge of GraphRAG, semantic retrieval, entity linking, structured reasoning, LLM grounding, and Agentic AI architectures
• Experience with APIs, event-driven integration, data platforms, distributed systems, and semantic services
• Strong communication and stakeholder management skills, with experience in insurance or other regulated industries considered an advantage

Your core competencies:

Finding effective solutions: You aim for simple and feasible solutions. You ensure the efficient use of your team's resources

Drives Vision and Purpose: You understand the vision of “living better together”, explain it clearly to your team and inspire them to fill it with life

Ensures Accountability: We empower each other to take responsibility

Strengthening ownership: You delegate tasks and motivate your team to act independently. You create the framework and provide the necessary freedom to enable this

At UNIQA, we embrace diversity and consciously foster different perspectives in our teams and leadership positions. We therefore explicitly welcome applications that enrich our diversity. We are striving to increase the proportion of women in leadership positions as well as in technical areas and particularly welcome applications from women. If you have any questions regarding accessibility, please contact the person listed in the advertisement on the right-hand side.

Due to data protection reasons, we can only accept applications via our recruiting portal.

JOB KEY FACTS

Location: Wien, AT

Annual minimum salary gross (Euro): 70.000

Start Date: as of now

You strive for more than the minimum - so do we! We will agree on your actual salary depending on your education and experience during the recruiting process.

We look forward to getting to know you in a first interview online. Additional meetings are held in person at our head quarters in Vienna.