James Walker

I am a Senior Power BI Developer with 8 years of experience specializing in designing advanced dashboards, data modeling, and ETL processes. I focus on building reliable, high-quality reporting that helps stakeholders make better decisions.

In my recent role, I led migration of SSRS reports to Power BI, improving report performance and user engagement. I design interactive dashboards using best practices like star schema to keep data models efficient, scalable, and fit for complex analytics.

I also own end-to-end ETL work: I perform data extraction, cleansing, transformation, and loading while using Power Query (M language) to automate transformations and reduce manual effort. I work in agile environments, collaborate with stakeholders, maintain data accuracy and integrity, and troubleshoot query and performance bottlenecks to reduce load times.