Senior Power BI Developer | Microsoft Fabric | PL-300, AZ-900 | 6.5+ Years

Power BI Development
Expertise in Power BI Desktop and Service, Power BI Report Builder for paginated reports, DAX engineering including Time Intelligence, Iterators and Variables, Power Query and M Language, Microsoft Fabric and Dataflows Gen2, Row Level Security, and Data Modelling using Star and Snowflake Schema.

DAX and Data Modelling
Advanced DAX formula authoring covering complex measures, time intelligence functions, iteration functions such as SUMX, AVERAGEX and RANKX, dynamic Row Level Security, and semantic data model design integrating multiple enterprise OLTP sources with star schema principles for optimal query performance.

Data Integration and Pipeline Engineering
Hands-on experience with SQL complex queries, stored procedures and views, SAP BEx and SAP ECC data integration, Azure Data Factory, Power Automate, SharePoint and Teams integration, Oracle Analytical Services, and Databricks Lakehouse for end-to-end automated data pipeline delivery.

SAP Integration
Experience integrating SAP ECC and SAP BEx queries into Power BI pipelines, including collaboration with SAP BW Data Teams to diagnose and raise BEx query defects and architecting full data pipelines from SAP ECC through to paginated reports.

GenAI and Emerging Technologies
Knowledge and hands-on experience with Prompt Engineering, RAG (Retrieval-Augmented Generation), LLM Workflows and Orchestration, Azure OpenAI Service, Copilot Studio, LangChain, Anthropic Claude API, AWS Bedrock, Google Gemini, and IBM WatsonX.

Cloud and Platform Technologies
Proficiency in Microsoft Azure (AZ-900 certified), Snowflake, GitHub, Dataiku, and ServiceNow ITSM, supporting enterprise-grade cloud deployments and platform integrations.

SQL and Database Engineering
Building SQL data layers using complex joins, subqueries, stored procedures, indexed views, and user-defined functions, delivering analytics-ready datasets and reducing data preparation time across multiple client engagements.

Power Query and M Language
Advanced Power Query transformations using M Language, including List.Buffer and Table.Buffer optimisations to reduce paginated report file sizes and gateway refresh overhead, as well as M code transformations to preserve calculated metrics and formatting during data migrations.

Enterprise BI Governance and Administration
Managing Power BI Service workspaces including gateway configuration, incremental refresh scheduling, role-based access control for large numbers of report consumers, and incident management through ServiceNow from UAT sign-off to PROD deployment.

Geospatial and Advanced Visualisation
Building geospatial visualisations mapping grid infrastructure, operational zones, and service coverage areas, supporting spatial analysis of transmission losses and load balancing across national grid environments.