I created an interactive Power BI dashboard for a freelance project, using Excel data to present revenue, expense, and margin KPIs.
I also implemented ETL processes in Power Query and added DAX measures, then segmented customers by region and product to make trends easier to interpret.
In academic projects, I modeled customer data in SQL Server and integrated it with Power BI for analysis. I also developed a SQL Server data warehouse with ETL from Excel, a dimensional sales model, and a cube-style view for multidimensional analysis.

