Rubicon Consulting is currently recruiting for Semantic Graph & Ontology Architect on a 6 Month Rolling Contract, based in Warwickshire. Role Summary We’re building a Smart Data Fabric that unifies enterprise data (Snowflake, SharePoint, ERP, NoSQL, and document silos) and exposes it to advanced AI agents through a semantic, graph-native, and vector-aware foundation. You will own graph and semantic architecture, modeling business relationships, processes, and logic to enable accurate, contextual, auditable workflows. This is a hands-on leadership role spanning LPG vs RDF/OWL tradeoffs, query optimization, and ontology engineering. Key Responsibilities Graph & Semantic Architecture * Design scalable graph schemas (LPG and/or RDF/OWL) based on semantic and inference requirements. * Author and optimize Cypher/Gremlin/SPARQL queries for multi-hop traversal, orchestration, and complex reasoning. * Define canonical entity models and mapping layers across Snowflake, MongoDB, SharePoint, ERP, and unstructured content. Ontology Engineering & Reasoning * Create and maintain formal ontologies/taxonomies; govern versioning and lifecycle. * Implement logical inference (rules/constraints) for agent decision-making, conflict detection, and workflow integrity. * Establish semantic consistency standards and data quality checks. Hybrid Semantic Layer (Graph + Logic) * Design a hybrid semantic layer combining ...