Lukas Weber

Data Scientist

[email protected]+49 151 23456789Berlin, Germanylinkedin.com/in/lukasweber-examplegithub.com/lweber-example

Summary

Data scientist with 4 years of experience building forecasting and recommendation models in Python. I take models from notebook to production and measure them against business outcomes, not just accuracy scores.

Experience

Data ScientistFreshcart Delivery · Berlin · 2023 – Present
  • Built a demand forecasting model (LightGBM) for 300 products across 12 warehouses, reducing food waste by 18%.
  • Shipped a recommendation model that increased basket size by 5% in an A/B test with 200,000 users.
  • Set up model monitoring that flags data drift weekly, catching two silent failures before they affected customers.
Junior Data ScientistInsurely · Hamburg · 2021 – 2023
  • Developed a claims-fraud classifier that helped investigators focus on the riskiest 5% of claims.
  • Built a churn model and presented the main drivers to the retention team, who redesigned renewal emails as a result.

Education

M.Sc. Data ScienceTechnical University of Munich · 2021
B.Sc. MathematicsUniversity of Hamburg · 2019

Skills

Modelling: Regression, Gradient boosting, Time series, Recommendation systems, Experiment design

Tools: Python, SQL, scikit-learn, PyTorch, MLflow, Airflow

Cloud: AWS SageMaker, Docker, BigQuery