BI Lead

Lead BI architecture and solution design conversations with clients, acting as the primary technical authority on data and analytics platforms.  Design, build, and optimise Power BI semantic models and Tableau data sources for enterprise-scale performance and maintainability.  Write and optimise complex DAX measures, M/Power Query transformations, and SQL queries to support accurate, high-performance reporting.  Diagnose and resolve data model issues — slow DAX, broken relationships, cardinality problems, and upstream data quality issues — quickly and systematically.  Architect dimensional data models (star schema, fact/dimension design) and semantic layers consumed across multiple BI tools.  Drive self-service BI capability: certify datasets, define governed metrics, and build enablement programmes so business teams can explore data independently.  Define BI deployment standards, CI/CD pipelines, and release governance to ensure reliable and secure analytics deliver