Microsoft Power BI Developer, Data Analyst, Dashboard and Report Enhancement

Enhance a Retail Power BI Dashboard We are looking for a Power BI Developer / Data Analyst to improve an existing retail dashboard. The dashboard already has a data model and some DAX measures, but we need to enhance the report to make it more professional, clear, and useful for the business analysis. Main tasks: * Review and improve the existing Power BI data model * Optimize DAX measures for better performance and accuracy * Improve the dashboard design and layout * Enhance visuals for sales analysis, product performance, and profitability * Make the report clean, modern, and easy to understand Important KPIs and metrics: * Ventes / Sales * Marge brute / Gross Margin * Taux de marge brute / Gross Margin % * Revenue by product, category, store, and period * Monthly and yearly sales evolution The goal is to transform the current dashboard into a modern and professional retail report with strong KPIs, optimized DAX, and a better visual design. Final deliverables: * Updated Power BI PBIX file * Optimized DAX measures * Improved dashboard design