Welcome to my curated portfolio of Tableau dashboards—built to demonstrate business intelligence, data storytelling, and dashboard design skills across a range of domains including Sales, Human Resources, and Electric Vehicles.

I would like to thank Baraa Khatib Salkini for inspiring the design and approach of these dashboards. Your guidance and creativity have been invaluable in shaping this portfolio.

Each project simulates real-world business use cases, combining interactive visuals, dynamic filters, and actionable insights to support decision-making.

Use Case: Executive-level insight into sales trends, product performance, and customer metrics.

• Year-over-year KPI comparison
• Product subcategory breakdown
• Weekly sales/profit analysis
• Top 10 customers by profit
• Dynamic filters by product & geography

Preview:

Use Case: Government or private sector analysis of EV adoption trends across regions and manufacturers.

• Filter by city, make, model, and electric range
• Identify regional EV adoption patterns
• Compare vehicle types and fuel technology

📄 View Problem Statement (PDF)
📸 Preview:

Use Case: HR leadership view of workforce distribution, hiring trends, and attrition metrics.

• Filter employee records by city, department, gender, education, or performance
• Monitor hiring and termination trends over time
• Compare workforce distribution across HQ (New York) and branch locations
• Analyze salary variations by age, gender, education, and job role
• Explore demographic trends like age groups and education levels
• Identify patterns between educational background and performance ratings

📸 Preview

• Data Visualization: Clean, interactive Tableau dashboards with advanced chart types.
• Business Storytelling: Focus on actionable insights aligned with real-world scenarios.
• Dashboard Interactivity: Use of filters, parameters, and highlights for user-driven analysis.
• Data Preparation: ETL and cleaning using built-in Tableau tools and external tools as needed.
• Stakeholder Communication: Problem-first approach to visual design and documentation.

• Tableau Desktop
• Data Sources: CSV, government open data
• Other Tools: Figma (for design sketching), Excel, Notion (for case documentation)

Chukwudi Aboaja
Business Intelligence Analyst | Data Storyteller
🎯 Helping businesses turn data into clarity, direction, and impact.
📫 LinkedIn • Email

This repository is licensed under the MIT License.