
Course creator at
The #1 most reviewed AI and data science courses on Trustpilot.
Jeff Li
About Jeff
Jeff Li is a senior data scientist at Netflix, where he builds large-scale forecasting platforms and demand generation models that power billion-dollar advertising businesses. He previously led forecasting and experimentation initiatives at Spotify and developed core machine learning systems at DoorDash. With a background spanning machine learning engineering, experimentation, and data science leadership, Jeff brings real-world expertise to his teaching, helping students understand how ML works in practice at top tech companies.
Background
Senior Data Scientist at Netflix
Pioneered demand forecasting for revenue, synthetic demand, and non-guaranteed avails, and built supply models that powered Netflix Ads from launch to $1B+.
Data Science Manager, Forecasting/ML at Spotify
Lead Spotify's podcast ads forecasting engine ($100M+), rebuild inventory, launch demand forecasting, design experimentation & causal packages.
Machine Learning Engineer at DoorDash
Developed ML-driven forecasting, recommendation, and attribution models to optimize marketplace balance, marketing, and sales.
Track record
Bringing real-world expertise from leading global companies
Academic background
Bachelor's degree, Data Science
Media & recognition
- Built Netflix's first ad-supply forecasts; drove $1B+ revenue
- Led Spotify's podcast ads forecasting; impacted $100M revenue
- Co-authored Spotify & DoorDash posts on experiments, ML
- Developed Dataquest courses used by 10,000+ learners
Links
What can Jeff teach you?
Jeff's courses demystify the full machine learning process—from experimentation to deployment—by showing how models are built, tested, and scaled in production at top tech companies. Students learn practical ML workflows, experimentation methods, and forecasting techniques that bridge theory with real-world application.
Learn
with Jeff
Find Jeff’s courses at 365 Data Science. Build your AI and data science career at your own pace with expert-led courses, real projects, and career support.
Enroll now to try Jeff’s courses for free.


