We are seeking a Senior BI Developer to play a key role in the modernization of our enterprise data platform built on Microsoft Fabric and PowerBI. This role is responsible for engineering scalable, high‑performance PowerBI solutions built on governed semantic models and standardized enterprise KPIs. This is not a dashboarding role. It requires deep expertise in semantic model design, advanced DAX optimization, dimensional modeling, and performance tuning. The successful candidate will operate within a medallion architecture (Bronze/Silver/Gold) and collaborate closely with Data Engineering and Analytics Engineering to ensure alignment across ingestion, transformation, modeling, and reporting layers.