DS Junhui Choi - Portfolio

Turning Data Into Insights

Market analyst specializing in solving business problems through data analysis and visualization

Python SQL Tableau Data Visualization Data Analysis

Featured Projects

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E-Commerce Sales Analysis

An e-commerce analytics project analyzing both session-based KPIs and customer-level funnel conversion behavior using SQL and Python.

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💻 View Code on GitHub

SQL Python Funnel Analysis
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Power BI Dashboard

An enterprise-wide market intelligence dashboard designed to improve market sensing, strategic decision-making, and data accessibility across business units.

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Power BI BigQuery Dashboard

About Me

Hi! I'm Junhui Choi, a Market Analyst with LG Innotek, specializing in automotive industry analytics. Since 2021, I have focused on delivering actionable insights and predictive models to support executive decision-making. In 2024, I selected as the company’s first overseas Market Analyst in its 55 year history and relocated to the U.S. headquaters in SF Bay Area, California.

My work centers on developing predictive models, building interactive dashboards in Power BI, and translating complex data into business strategy. I enjoy simplifying advanced analytics for internal stakeholders.

I hold a Bachelor’s degree in Economics from Peking University. I am fluent in Korean, English, and Mandarin and passionate about the intersection of data, business, and technology.


Areas of interest: Data analytics, business intelligence, predictive modeling, market forecasting, and technology strategy.
Tools I use: Python (pandas, numpy, matplotlib), SQL, Power BI, Tableau, and Google Looker Studio.