BAYZID MOSTAK

An advanced Power BI project demonstrating professional executive reporting, interactive dashboard navigation, AI-assisted insights (Copilot), and secure team collaboration within the Power BI Service.

A comprehensive Power BI data model and dashboard analyzing sales performance, profit margins, and year-over-year (YoY) growth using advanced DAX measures and time-intelligence functions.

A practical demonstration of essential data cleaning, shaping, and data modeling techniques using Power BI and Power Query Editor.

Interactive Retail Sales Dashboard built using Microsoft Excel. Features multi-source data integration, cleaning, pivot analysis, and interactive dynamic charts.

A comprehensive SQL project featuring advanced joins, nested subqueries, aggregations, dashboard summary metrics, and query performance optimization using MySQL Workbench.

A foundational SQL project exploring a mock sales dataset. Demonstrates database creation, data manipulation, aggregations, and JOIN operations for basic data analytics.

Comprehensive Excel Analytics Assignment featuring automated IF/COUNT/SUMIF formulas, dynamic Pivot Tables, and an interactive HR Analytics Dashboard.

An interactive Microsoft Excel Business Intelligence Dashboard featuring Power Query data transformation, Data Modeling, DAX measures, Pivot Analytics, and dynamic Slicers for sales performance tracking.

An advanced Excel data modeling and analytics dashboard built using Power Pivot and DAX. Features a clean, professional star-schema relational model connecting transactional sales data with dimensional datasets to deliver dynamic, high-level business insights.

Advanced data analytics project in Microsoft Excel demonstrating complex data management techniques including Tabular PivotTables, custom Calculated Fields/Items, dynamic Slicers, What-If Analysis (Goal Seek & Scenario Manager), and the modern PIVOTBY array function.