Senior Knowledge Graph Engineer for AI-Powered Procurement

Chain IQ; Lisboa; Presencial; EUR 70 000 - 100 000; Tempo integral

Resumo da oferta

Chain IQ is building an AI-native procurement platform and seeks a role shaping semantic foundations. You will define ontologies, model knowledge graphs, and establish context graphs that enable retrieval, reasoning, and workflow automation.

The position emphasizes governance, interoperability, and scalable intelligence across procurement data. You’ll collaborate with data, product, AI, and governance teams to ensure durable semantic structures and reusable graph assets that power agents and

Qualificações

• Experience with semantic modelling, ontology design, knowledge graphs.
• Solid understanding of entities, relationships, events, lifecycle states, and business context.
• Ability to translate complex procurement concepts into reusable semantic structures.

Responsabilidades

• Define and maintain procurement ontologies covering entities, attributes, relationships, events, states, and business concepts.
• Own the semantic model for core domains such as suppliers, contracts, obligations, sourcing events, categories, risks, savings, and operational workflows.
• Design and evolve procurement knowledge graphs representing entities, relationships, dependencies, events, and business context.
• Define context graph patterns used to assemble relevant information for users, workflows, retrieval systems, and AI agents.
• Model temporal relationships, lifecycle states, provenance, hierarchy, ownership, and dependency structures explicitly.
• Define graph construction patterns linking structured data, documents, communications, workflow events, and external signals to canonical entities.
• Establish approaches for entity resolution, supplier normalization, deduplication, identity management, and relationship confidence.
• Define validation rules and quality expectations for ontology and graph structures.
• Ensure semantic and graph models support retrieval, reasoning, recommendations, workflow automation, and agentic execution.
• Collaborate with Data Architecture, Data Engineering, Product, AI, Domain, and Governance teams to ensure graph structures are governed and useful.

Conhecimentos

Semantic modelling

Ontology design

Knowledge graphs

Graph data modelling

Domain modelling

Graph databases

Entity resolution

Provenance

Metadata management

Ferramentas

Neo4j / Graph DB

RDF/OWL tools

Descrição da oferta de emprego

Chain IQ is building an AI-native procurement platform and seeks a role shaping semantic foundations. You will define ontologies, model knowledge graphs, and establish context graphs that enable retrieval, reasoning, and workflow automation.

The position emphasizes governance, interoperability, and scalable intelligence across procurement data. You’ll collaborate with data, product, AI, and governance teams to ensure durable semantic structures and reusable graph assets that power agents and