Anna Zawadzka
Data scientist
Warsaw · +48 123 456 789 · anna.zawadzka@example.com
Professional profile
Data scientist with 5 years of experience, the last 3 at a grocery chain with 700 stores. I build demand forecasting and loyalty programme churn models in Python, prepare data in SQL and deploy models with the data engineering team. The demand forecasting model cut fresh produce waste by 14%, and a campaign based on the churn model kept 9% more customers.
Work experience
Data scientist
03.2022 - presentGrocery chain, 700 stores, Warsaw
- A demand forecasting model for fresh produce in 700 stores, waste down 14%.
- A loyalty programme churn model, 9% more customers retained.
- Preparing data in SQL and Python, features from sales and weather data.
- A/B tests of campaigns and assessing their impact on sales.
- Deploying models with the data engineering team and monitoring forecast quality.
Data analyst
07.2019 - 02.2022Telecoms operator, Warsaw
- Reports and analyses of customer behaviour.
- First classification models in Python.
- Dashboards for the marketing department.
Education
Master's degree, applied mathematics
2014 - 2019University of Warsaw
Skills
- Python, pandas and scikit-learn
- SQL
- Forecasting and classification models
- A/B tests and statistics
- Deploying and monitoring models
- Presenting results to the business
Certificates
- Cloud machine learning certificate, 2023
- Time series forecasting course, 2022
- Statistics for analysts course, 2020
Languages
- English: C1
Additional information
- Hybrid work
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