I will fix and optimize your power bi dashboard dax and data model

Germany

I speak English, Greek, German

Data Scientist and ML Engineer

Transform your raw data into actionable business intelligence with expert data analysis and machine learning solutions.
About this Gig

Is your Power BI report slow, showing incorrect numbers, difficult to maintain, or full of DAX and data-model problems?


I help businesses troubleshoot and optimize existing Power BI solutions so reports become faster, accurate and easier to maintain.


I can help with:

  1. DAX measures and incorrect calculations
  2. Slow Power BI reports
  3. Data-model and relationship issues
  4. Filter and context problems
  5. Power Query transformations
  6. Incorrect KPIs or totals
  7. Refresh and connectivity troubleshooting
  8. Report architecture and maintainability
  9. Performance optimization


My focus is not simply making charts look better. I work on the underlying BI logic: data models, calculations, performance and business reporting.


I bring experience from enterprise BI environments involving Power BI, SQL, SAP, Databricks and complex reporting landscapes.


For Standard, Premium or complex projects, please message me before ordering so I can confirm the correct scope.


Let's turn your Power BI report into something fast, reliable and business-ready.

Analysis type:

Statistical Analysis

•

Descriptive Analysis

Expertise:

Business Insights

•

Forecasting

•

Churn & Retention

Technology:

Excel

•

Power BI

Programming language:

Python

•

SQL

•

DAX