Big Data Developer

🚀 Power BI Developer – Contract (Inside IR35) 📍 UK Remote | ⏳ 6-month contract 🏢 Major UK Retailer We’re working with a major UK retailer to find an experienced Power BI Developer to support enterprise-scale reporting and analytics built on a Databricks Lakehouse architecture hosted on AWS. This is a hands-on delivery role, ideal for a Power BI specialist who enjoys building high-performance datasets, semantic models, and dashboards that drive real business insight — all within a regulated change environment. 🔍 The Role You’ll be responsible for designing, developing, and optimising Power BI datasets, models, and dashboards, working closely with data engineers, business analysts, and stakeholders to deliver high-quality, governed reporting solutions. You’ll also operate in line with established compliance, governance, and change methodologies, ensuring best-practice delivery throughout the engagement. 🛠 Key Responsibilities • Design and build Power BI semantic models and datasets connected to a Databricks Lakehouse • Develop advanced DAX and Power Query (M) transformations • Deliver interactive dashboards and reports aligned to business needs • Implement and manage Row-Level Security (RLS) and workspace access • Collaborate with data engineers to optimise Delta Tables, SQL endpoints, and ETL pipelines • Support performance tuning across Power BI and Databricks • Maintain clear documentation, lineage, and governance standards ✅ Essential Skills & Experience • 5–7+ years’ experience as a Power BI Developer • Advanced knowledge of DAX, Power Query, and semantic modelling • Hands-on experience connecting Power BI to Databricks on AWS • Strong SQL skills (T-SQL and/or Spark SQL) • Solid understanding of data warehousing, dimensional modelling, and Lakehouse concepts • Experience with Power BI Service, deployment pipelines, and RLS • Proven ability to translate business requirements into impactful analytics ⭐ Desirable Experience • Azure DevOps, Git, or CI/CD for Power BI • AWS services (S3, Glue, Redshift, Athena) • Databricks Unity Catalog, Delta Live Tables, or MLflow • Experience delivering BI solutions on modern cloud data platforms • Exposure to data governance or regulated environments 📌 Contract Details • 6-month contract • Inside IR35 • UK Remote