Data Scientist - European Agency
Employer · Altia
Database administrator
Systems analystSoftware developerFull-timeBudapest
We are looking for a Senior Data Scientist / Semantic Data Engineer specialised in semantic data, Linked Data, ontology engineering, and knowledge graphs, responsible for designing and implementing data solutions based on semantic technologies for an international project supporting European institutions and agencies.
Tasks
- Design and align data models and ontologies, develop controlled vocabularies, and manage their lifecycle to ensure consistency and interoperability.
- Design and maintain knowledge graphs, develop and optimise SPARQL queries, and validate semantic data models using SHACL.
- Develop ETL/ELT pipelines to ingest, transform, and publish data from relational databases, XML, JSON, CSV, and APIs into RDF-based environments.
- Implement Linked Data solutions and semantic transformations using established RDF standards and mapping technologies.
- Translate business requirements into technical specifications and communicate complex semantic data concepts and results effectively to both technical and non-technical stakeholders.
Conditions & benefits
High-impact projectCollaborative work environmentCareer PlanTraining PlanFlexible Remuneration
Requirements
- Semantic Web & Linked Data: RDF, RDFS, OWL, SKOS, SHACL, JSON-LD, Turtle, RDF/XML, Linked Data.
- Querying & Knowledge Graphs: SPARQL, knowledge graph modelling and optimisation, QLever, Virtuoso, GraphDB.
- Ontology Engineering: Ontology alignment, vocabulary design, ontology lifecycle management, semantic modelling.
- Data Engineering: Python, ETL/ELT, RML, data ingestion and transformation from relational, XML, JSON, CSV and API sources.
- Validation & Interoperability: SHACL, semantic data validation, RDF mappings and Linked Data interoperability.