Data Analyst & Scientist | E-commerce | SQL, Python, GCPAhrum Han
đź“Š Are you struggling with these?
Your sales are growing, but profit margins are shrinking
You’re spending on ads but don’t know which channels drive loyal customers
You don’t know why customers churn—or who your real VIPs are
❌ Before
Running ads with poor conversion, but unsure where the funnel breaks.
âś… After
Funnel analysis revealed a 53% drop-off from Install to Signup.
After fixing that step, conversion improved by 1.5x.
Hi! I'm a business-minded data analyst with 5+ years of experience helping e-commerce brands turn complex data into clear, actionable insights.
I’ve worked with startups and growing businesses to improve customer retention, optimize marketing performance, and automate reporting processes. From LTV and cohort analysis to ROAS optimization and funnel insights, I deliver results that drive growth.
đź’ˇ Recent Results
+9pp new user retention through funnel + email strategy
+22% ROAS via ad & inventory data sync
1.5x conversion uplift after diagnosing a 53% drop-off from Install → Signup
-90% reporting time via automated Tableau dashboards
⚙️ Tools I Use
Visualization: Tableau, Power BI, Looker Studio Data Engineering: GCP,
BigQuery, SQL, Python, ETL scripting * eCommerce Frameworks: AARRR
metrics, LTV modeling, cohort & funnel analysis
Contact for pricing
Tags
MATLAB
Microsoft Excel
pandas
Tableau
Data Analyst
Data Modelling Analyst
Data Scientist
Service provided by
Ahrum Han Seoul, South Korea
Data Analyst & Scientist | E-commerce | SQL, Python, GCPAhrum Han
Contact for pricing
Tags
MATLAB
Microsoft Excel
pandas
Tableau
Data Analyst
Data Modelling Analyst
Data Scientist
đź“Š Are you struggling with these?
Your sales are growing, but profit margins are shrinking
You’re spending on ads but don’t know which channels drive loyal customers
You don’t know why customers churn—or who your real VIPs are
❌ Before
Running ads with poor conversion, but unsure where the funnel breaks.
âś… After
Funnel analysis revealed a 53% drop-off from Install to Signup.
After fixing that step, conversion improved by 1.5x.
Hi! I'm a business-minded data analyst with 5+ years of experience helping e-commerce brands turn complex data into clear, actionable insights.
I’ve worked with startups and growing businesses to improve customer retention, optimize marketing performance, and automate reporting processes. From LTV and cohort analysis to ROAS optimization and funnel insights, I deliver results that drive growth.
đź’ˇ Recent Results
+9pp new user retention through funnel + email strategy
+22% ROAS via ad & inventory data sync
1.5x conversion uplift after diagnosing a 53% drop-off from Install → Signup
-90% reporting time via automated Tableau dashboards
⚙️ Tools I Use
Visualization: Tableau, Power BI, Looker Studio Data Engineering: GCP,
BigQuery, SQL, Python, ETL scripting * eCommerce Frameworks: AARRR
metrics, LTV modeling, cohort & funnel analysis
Contact for pricing