Semantic Data Engineer

What You'll Do

• Analyse and maintain RDF/TTL data models and vocabularies
• Develop, optimise, and maintain SPARQL queries
• Support data ingestion, transformation, and validation workflows
• Ensure consistency and correctness of semantic data across the platform
• Collaborate with backend engineers to integrate semantic logic into application flows
• Assist in documenting semantic models, assumptions, and constraints
• Participate in troubleshooting data quality and reasoning issues

Requirements

• 3+ years of experience working with semantic or data-centric systems
• Strong knowledge of RDF, RDFS, OWL and SPARQL
• Experience with knowledge graphs or semantic interoperability platforms
• Experience with data modelling and ontology design
• Comfortable working with structured data formats: TTL, XML, JSON, CSV
• Ability to analyse existing models and understand implicit domain logic

Nice-to-Have

• Experience with triplestores or graph databases
• Familiarity with EU data standards or interoperability frameworks
• Python scripting for data processing and/or Apache Airflow