We are seeking a highly skilled Graph Database Engineer to join our team in support of a high-impact public sector program. This role involves designing, implementing, and optimising graph-based data models and analytics to support mission-critical decision-making and intelligence operations. This role is a 6 month initial contract, hybrid 2 days a week in London, paying up to £700pd Inside of IR35 (DOE). Key Responsibilities: • Design and develop scalable and efficient graph database solutions using technologies such as Neo4j • Collaborate with data scientists, analysts, and engineers to build complex data pipelines and relationships across disparate data sources. • Implement graph algorithms to uncover patterns, detect anomalies, and enable entity resolution. • Translate real-world systems and entities into graph structures for querying and visualisation. • Optimise query performance and ensure data integrity and security compliance in accordance with government standards. • Support ingestion of structured and unstructured data into graph databases. • Develop and maintain documentation for graph schemas, workflows, and system configurations. Required Technical Skills: • 3+ years of experience working with Neo4j • Proficiency with Cypher • Experience with ETL processes, data modeling, and data integration pipelines. • Familiarity with data governance and security practices in a public sector or regulated environment. • Strong analytical and problem-solving skills with attention to detail. • Eligible for government security clearance. • Experience working with cloud platforms (AWS, Azure) and data services. • Experience in Fraud or Financial Crime projects • Familiarity with linked data, RDF, or semantic web technologies. • Experience with visualisation tools like Neo4j Bloom