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rehamessa/README.md

Turning business data into insights, dashboards & better decisions 📊


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🧑‍💻 About Me

I'm a Data Analyst & BI Developer with hands-on experience in business intelligence, operational analytics, reporting, and data visualization. I work with business and operational data to build reliable reporting solutions, automate repetitive processes, and turn complex data into clear insights that support day-to-day decision making.

My experience is mainly focused on Power BI, SQL, Excel, and Power Query, with growing experience in Microsoft Fabric and data engineering technologies.

  • 📊 Build and maintain Power BI dashboards and performance reports for operational and business teams
  • 🔍 Analyze large and messy datasets, identify data quality issues, and transform them into structured, reliable reporting data
  • ⚙️ Automate reporting processes using Power Query, Excel, SQL, and Power BI
  • 📈 Work with operational KPIs and workforce analytics, including AHT, SLA, CSAT, FCR, Adherence, Occupancy, Utilization, and Productivity
  • 🧩 Develop DAX measures, calculated logic, and interactive Power BI reports to answer business questions
  • 🏗️ Expanding my skills in Microsoft Fabric, KQL, Spark, and modern data engineering workflows
  • 🤝 Work closely with stakeholders and operations teams to understand requirements, investigate data issues, and deliver actionable insights

🛠️ Tools & Technologies

Power BI DAX Power Query Excel SQL Server Python Microsoft Fabric KQL Apache Spark Git

📬 Let's Connect

LinkedIn Email

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  1. Sales_DWH_SQL_Project Sales_DWH_SQL_Project Public

    Develop a modern data warehouse using SQL Server to consolidate sales data, enabling analytical reporting and informed decision-making.

    TSQL

  2. Teleperformance-Case-study--Bi-Dev Teleperformance-Case-study--Bi-Dev Public

    This package contains everything needed to build, present, and defend the HR Attrition Power BI dashboard: the data model, the DAX/Python work, the build guides, the findings, and the presentation …

    Python

  3. PWC-_Call_Center_Excel_Dashboard PWC-_Call_Center_Excel_Dashboard Public

  4. Restaurant-Sales-Analytics-Pipeline-Databricks-Power-BI- Restaurant-Sales-Analytics-Pipeline-Databricks-Power-BI- Public

    Jupyter Notebook

  5. Maven-Dashboard-PL300Preb Maven-Dashboard-PL300Preb Public

    It demonstrates key Power BI data analysis and visualization skills from connecting and transforming raw data to building an interactive, insight-driven dashboard.

  6. call-center-performance-dashboard call-center-performance-dashboard Public

    Call Center Insights Dashboard project. This dashboard is designed to provide an interactive and comprehensive view of call center performance, enabling users to monitor key performance indicators …