Linked Open Data specialist JP055223

Linked Open Data Specialist – Brussels | Hybrid

We are looking for a Linked Open Data (LOD) Specialist / Data Architect to support a strategic and technical initiative focused on transforming open geographical data into a Linked Open Data ecosystem .

Location: Brussels, Belgium

Work model: Hybrid

Start: ASAP

Duration: Until January 2027

Commitment: Part-time (2/5)

Daily Rate: €650–€900/day

Your Mission

You will conduct a strategic and technical study to prepare the transformation of existing open-data assets into Linked Open Data , with a strong focus on interoperability, semantic modelling, reuse and integration with international data ecosystems.

Key responsibilities include:

• Analyse existing datasets, structures and data models
• Identify business entities, attributes and relationships
• Develop and document a conceptual data model
• Produce UML, RDF or equivalent representations
• Identify and assess relevant ontologies and vocabularies
• Define semantic alignments and extensions
• Develop a target semantic model
• Identify stakeholders and facilitate workshops
• Capture and prioritise business use cases
• Define competency questions to validate the semantic model
• Identify relevant external reference datasets
• Assess interoperability opportunities with sources such as Wikidata, GeoNames and INSPIRE
• Define a governance strategy for URI/IRI identifiers
• Establish naming conventions and rules ensuring stable, persistent identifiers
• Evaluate RDF modelling, transformation, publication and storage technologies
• Propose a target architecture and recommend suitable tools
• Define an implementation roadmap, dependencies, risks and indicative planning
• Produce clear strategic recommendations and final deliverables

Required Skills & Experience

• Strong experience as a Data Architect / Linked Open Data Specialist
• Proven experience with Linked Open Data (LOD)
• Strong knowledge of:
  • RDF
  • OWL
  • SKOS
  • SPARQL
  • Knowledge Graphs
  • Ontology Design
  • Conceptual & Semantic Modelling
  • URI / IRI Governance
  • Data interoperability and standards alignment
• Experience translating business requirements into semantic and data models
• Experience facilitating workshops with business and data stakeholders
• Ability to evaluate data architectures, technologies and implementation approaches
• Strong analytical and documentation skills

Nice to Have

• Experience with GeoSPARQL
• Knowledge of INSPIRE and geographical data
• Experience with geospatial / topographic datasets
• Knowledge of international reference datasets
• Experience designing or implementing Knowledge Graph solutions
• Experience with open-data initiatives and public-sector environments

Languages

Dutch: Active knowledge
French: Active knowledge
English: Passive knowledge

Ideal Profile

We are looking for a specialist who can combine data architecture, semantic modelling and Linked Open Data expertise with strong stakeholder and workshop facilitation skills.

The successful candidate should be able to translate complex datasets and business requirements into a practical semantic architecture and a clear roadmap towards a sustainable Linked Open Data implementation .