Knowledge Graph Architect - Hybrid & Flexible Hours

Siemens Mobility; Lisboa; Híbrido; EUR 55 000 - 75 000; Tempo integral

Vantagens oferecidas por esta oferta de emprego

Belong & Innovate

Hybrid model & flexible hours

Health insurance

Learning & development

Sustainability & shuttle service

Resumo da oferta

Siemens Global Business Services (GBS) in Lisbon seeks a Knowledge Graph Expert to turn fragmented business knowledge into structured, machine-readable ontologies and graphs for AI and automation. You will work directly with business experts to capture how work happens and translate it into ontologies that delivery partners implement.

The role covers ontology design, knowledge graph delivery, and bridging business with engineering, including mapping SAP/Snowflake sources and maintaining quality

Qualificações

• Bachelor’s or Master’s degree in Computer Science, Data Science, Information Science, Computational Linguistics, or 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 and collaborating with subject-matter experts to elicit rules and vocabulary.
• Design domain ontologies and harmonise terminology across regions and systems.
• Model and deliver knowledge graphs, map source systems (SAP, Snowflake) to semantic models, and validate usefulness.
• Prepare implementation-ready specifications, rules and test scenarios for delivery teams.
• Bridge business and technical teams, validating that builds reflect business intent.

Conhecimentos

Ontologies & knowledge graphs

SQL

Python scripting

Stakeholder communication

Formação académica

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

Ferramentas

Neo4j

Cypher

SPARQL

Descrição da oferta de emprego

Siemens Global Business Services (GBS) in Lisbon seeks a Knowledge Graph Expert to turn fragmented business knowledge into structured, machine-readable ontologies and graphs for AI and automation. You will work directly with business experts to capture how work happens and translate it into ontologies that delivery partners implement.

The role covers ontology design, knowledge graph delivery, and bridging business with engineering, including mapping SAP/Snowflake sources and maintaining quality