Knowledge Graph Architect - Ontology & Semantic Modelling (Hybrid)

Siemens; Lisboa; Híbrido; EUR 60 000 - 85 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Hybrid model

Home office budget

Health insurance

Learning & mentoring

Shuttle service

Volunteer initiatives

Resumo da oferta

Siemens GBS is seeking a Knowledge Graph Expert to turn fragmented business knowledge into structured, machine-readable models. You will work with business experts to capture work processes, translate them into ontologies, and ensure accuracy as delivery partners implement the model.

This role is part of the GBS Digital Solutions ramp-up. Responsibilities include ontology design, knowledge graph modelling, and bridging business with technical teams.

Qualificações

• Bachelor’s or Master’s degree in Computer Science, Data Science, Information Science or a related field.
• 3–5 years of experience in data modelling, knowledge engineering, or semantic technologies.
• Hands-on experience with ontologies and knowledge graphs: RDF, OWL and SPARQL, and/or property graphs such as Neo4j and Cypher.
• Strong conceptual and logical modelling skills, working from unstructured, inconsistent or undocumented sources.
• Working knowledge of SQL and scripting language, preferably Python.
• Ability to explain models to non-technical stakeholders and to hold a room in a workshop.
• Fluency in English.

Responsabilidades

• Capturing & interpreting Business Knowledge with SMEs across finance, compliance and operations.
• Engage with subject‑matter experts to elicit rules, exceptions and vocabulary used in business.
• Contribute to workshops turning process-mining insights into documented logic.
• Design domain ontologies — entities, relationships, hierarchies and constraints.
• Harmonise terminology across regions and systems for a shared model.
• Model knowledge graphs and map sources like SAP/Snowflake to the semantic model.
• Prepare implementation-ready specs and maintain model documentation.

Conhecimentos

Knowledge graphs

Data modelling

Ontology design

SQL

Python

Workshop facilitation

Stakeholder communication

English fluency

Formação académica

Bachelor's or Master's in Computer Science/Data Science/Information Science

Ferramentas

RDF

OWL

SPARQL

Neo4j

Cypher

Descrição da oferta de emprego

Siemens GBS is seeking a Knowledge Graph Expert to turn fragmented business knowledge into structured, machine-readable models. You will work with business experts to capture work processes, translate them into ontologies, and ensure accuracy as delivery partners implement the model.

This role is part of the GBS Digital Solutions ramp-up. Responsibilities include ontology design, knowledge graph modelling, and bridging business with technical teams.