Dr. Wei Zhang
Data Scientist · Recommendation & Forecasting
dr@example.com+1 555 000 0100New York, NY
Summary
Data scientist with 5 years shipping production ML for personalization and demand forecasting. Owned models responsible for +9% conversion lift at scale.
Experience
Data Scientist · StreamNow
2021 — Present · New York, NY
- Shipped a two-tower recommender live to 22M users — +9% CTR, +4.2% watch time.
- Built a demand-forecast pipeline in Airflow + PySpark reducing overstock by $1.1M/yr.
- Ran 40+ A/B tests with pre-registered analysis plans.
Education
Columbia University · PhD, Statistics
2016 — 2020 · New York, NY
Skills
PythonPyTorchscikit-learnSQLSparkAirflowMLflowA/B testingCausal inference
Languages
English (Native)