Projects
5
Experience
9yrs
3 roles
Education
Data Analyst path
D8A Academy
Skills
10
skills
Expert2
Advanced4
Intermediate3
Beginner1
Projects
#ProjectStackStatus
01E-commerce sales analysis in SQLAnswered twelve business questions on an e-commerce database with JOINs, CTEs and window functions: revenue by month and category, repeat-purchase rate, average time between first and second order. Ranked customers by lifetime value and found that 9% of them made 41% of the revenue.
02Customer churn exploration in PythonCleaned a subscription dataset with Pandas (missing values, inconsistent plan names, duplicated accounts), then explored who cancels and when. The main finding: most cancellations happen in the first 60 days, and customers who never used the mobile app churned at twice the rate. Charted with Matplotlib.
03GA4 funnel and retention in BigQueryRebuilt the purchase funnel from raw GA4 event data exported to BigQuery: sessions, product views, add to cart, checkout, purchase. Measured the drop at each step by device and built weekly retention cohorts. Mobile checkout lost 2.5x more users than desktop at the payment step.
04Executive KPI dashboard in Power BIPower BI model with a sales fact table and date, product and store dimensions. DAX measures for revenue, margin, year-over-year growth and the share of revenue per channel. One executive page, one page per region, with bookmarks for the monthly review.
05Vélib' station demand in ParisPulled a year of Paris bike-share station data from the open data portal, loaded it into PostgreSQL and looked at which stations run empty, and when. Morning commute empties the residential stations in the east by 8:30. Wrote it up as a short blog post with maps.Personal
Experience & education
20142016201920212024Now
Analyst for the French marketplace category team. I own the weekly performance report (BigQuery + Looker), run ad-hoc analyses for six category managers, and built the seller-churn alert that flags sellers whose sales drop 30% month over month.
Built and maintained the e-commerce team's Power BI reports (traffic, conversion, revenue by channel). Automated the daily sales extract with Python, which saved the team about two hours a day of manual Excel work.
Four validated projects: SQL, Python for analysis, BigQuery and GA4, Power BI.
Regional paper and office supplies sales. Consistently in the top three of the branch. Learned the business before learning the data, which is still the most useful thing on this page.
Skill coverage
| BigQuery | DAX | GA4 | Pandas | PostgreSQL | Power BI | Python | SQL | |
|---|---|---|---|---|---|---|---|---|
| E-commerce sales analysis in SQL | ||||||||
| Customer churn exploration in Python | ||||||||
| GA4 funnel and retention in BigQuery | ||||||||
| Executive KPI dashboard in Power BI | ||||||||
| Vélib' station demand in Paris |
Filled cell = skill used in that project.