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jiwoon User

@jiwoonuser

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Junior data analyst at AIFFEL who analyzed promotion performance across 137 stores using statistical tests.

South Korea

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What I'm looking for

I'm looking for junior Data Analyst opportunities, particularly in customer analytics, experimentation, and business performance analysis.

At 아이펠, I completed hands-on data analytics and machine learning projects using Python and SQL. I analyzed promotion performance across 137 stores using ANOVA, Tukey HSD, and robustness checks.

I also worked on retail transaction and commercial district analyses involving customer behavior, propensity-score matching, and machine learning. I documented methods, results, and limitations in reproducible notebooks and project reports.

Experience

Work history, roles, and key accomplishments

Current

Data Analytics & Machine Learning Trainee

Current

아이펠

Jul 2026 - Present (4 months)

Completed hands-on projects covering data cleaning, EDA, statistical testing, and predictive modeling using Python and SQL. • Analyzed promotion performance across 137 stores using ANOVA, Tukey HSD, and robustness checks. • Worked on retail transaction and commercial district analyses involving customer behavior, propensity-score matching, and machine learning. • Documented methods, results, and l