data-portfolio

📊 M Zaki Wijdan Prakosa - Data Portfolio

Data analyst skilled in Microsoft Excel, Python, SQL, Tableau, Looker Studio

👋 About Me

Career Transition: Engineering → Data Analytics

I’m an engineer with 3 years of experience transitioning into data analyst. My engineering background brings analytical rigor, problem-solving skills, and technical expertise to data-driven decision making. This portfolio demonstrates my commitment to leveraging data for business impact and environmental sustainability. Passionate data professional leverages an engineering mindset to extract actionable insights from complex datasets.

Transferable Skills:

• Problem decomposition and systematic analysis
• Programming and statistical thinking
• Process optimization and performance analysis
• Cross-functional stakeholder communication

Core Strengths: System thinking, process optimization, statistical analysis, technical communication

Core Competencies:

• 📈 Business Intelligence & Analytics
• 🗄️ SQL & Database Management
• 📊 Data Visualization (Tableau, Power BI, Looker)
• 🐍 Python for Data Analysis
• ☁️ Cloud Analytics (Google Cloud)

🚀 Featured Projects

This project represents my journey from engineering problem-solving to data storytelling, combining technical rigor with business impact analysis.

1. Waste Management Analysis

Tools: Microsoft Excel (PivotTables, Slicers, Pivot Charts, Dashboard sheet)

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2. Taxi Trip Analysis

Tools: Python, Pandas, Matplotlib, Seaborn

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3. Bike Sales Dashboard

Tools: Microsoft Excel (PivotTables, Slicers, Pivot Charts, Dashboard sheet)

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4. House Sales Dashboard

Tools: Microsoft Excel, Tableau

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5. Airbnb Listings Bangkok Analysis

Tools: Python, Pandas, Matplotlib, Seaborn, Tableau

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6. E-commerce Sales Analysis

Tools: SQL, BigQuery, Looker Data Studio

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7. Industrial Carbon Emission Analysis

Tools: Python, Pandas, Matplotlib, Seaborn, SQL

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🛠️ Technical Skills

Languages & Tools:

• SQL (Intermediate) - PostgreSQL, MySQL, BigQuery
• Python (Intermediate) - Pandas, NumPy, Scikit-learn, Seaborn
• Visualization - Tableau, Power BI, Looker Studio, Matplotlib
• Cloud Platforms - Google Cloud Platform
• Version Control - Git, GitHub

📈 Certifications & Courses:

• Certificate of Accomplishment SQL (Basic) by HackerRank (2025)
• Hands On Data Portfolio by M Fauzan S Nugraha (2025)
• Data Analyst Mini Bootcamp by M Fauzan S Nugraha (2025)
• Data Analytics by Remote Worker Indonesia (2024)
• Job Connector Data Science Batch 11 2023 by Purwadhika Digital School dan Technology

📫 Let’s Connect

• LinkedIn: M Zaki Wijdan Prakosa
• Email: wisdanprakosa@gmail.com
• Portfolio Website: wsdn.data-portfolio.com

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🔗 Feel free to connect - I’m always open to discussing data opportunities