I will provide fast solutions for broken power bi dax formulas and data models

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Thomas T

About this gig

Is your Power BI report painfully slow, showing blank visuals, or calculations giving wrong numbers?


A broken data model or slow DAX formulas don't just look badthey create corporate reporting bottlenecks and lead to wrong business decisions. I specialize in stepping into messy Power BI environments, debugging complex DAX, and restructuring relationships so your reports render instantly.


What I will fix for you:

  • DAX & Power Query Debugging: Fixing complex calculated columns, measures, and broken M-code steps.
  • Performance Tuning: Optimizing heavy DAX calculations to speed up slow loading reports.
  • Data Model Repair: Rebuilding messy relationship layouts into clean, efficient Star Schemas.
  • Visual Cleanup: Redesigning confusing charts into executive-ready dashboards.


Note: Data security is my top priority. I am happy to work with masked/dummy datasets or sign a standard NDA before we begin.


Please message me with a description or screenshot of your Power BI issue before ordering so we can discuss the fastest timeline!

Get to know Thomas T

Thomas T

Financial and Management Accounting Trainee

  • FromUnited Kingdom
  • Member sinceNov 2024
  • Avg. response time1 hour
  • Languages

    English, Greek
I am a First-Class Accounting & Finance graduate and Microsoft Certified Power BI Data Analyst (PL-300) specializing in corporate data engineering. I bridge the gap between high-stakes financial ledger auditing and relational database architecture. My technical engine focuses on building automated, production-ready PostgreSQL database pipelines and executive-level Power BI risk dashboards that remain accurate to the penny. I eliminate manual reporting bottlenecks and optimize data architectures for FinTech platforms, boutique funds, and multi-currency enterprises globally.

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