I'm Wandi,
Data Analyst.
I help companies make better decisions through in-depth data analysis, intuitive data visualization, and compelling storytelling.
Portfolio Projects
A collection of data analysis and engineering projects demonstrating my capabilities from data extraction to interactive visualization.
Indonesia LQ45 Stock Market
A fundamental screener dashboard providing deep insights into the Indonesian LQ45 stock market, helping investors analyze financial health and performance.
Open Interactive Dashboard
Optimizing E-Commerce Strategy
A Data-Driven Deep Dive into Olist's Business Performance (2016-2018). Context: Olist is one of the largest e-commerce marketplaces in Brazil. Analyzed operational bottlenecks, sales trends, and customer behavior.
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Automated ETL Pipeline & AI
Designed and developed an end-to-end automated ETL pipeline to process unstructured student certificate data (Images & PDFs) into a structured relational database, featuring a custom Human-in-the-Loop (HITL) system for 100% accuracy.
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