Master the data science case interview
Built and reviewed by senior FAANG data scientists who have passed 50+ case interviews across leading tech companies.
Three case tracks
Product Sense & Metrics
How each company thinks about products, users, and what success looks like.
Product Cases
Diagnose a problem, measure success, decide launches, ML modeling and more — with senior walkthroughs.
Experimentation
A/B design, interference, switchbacks, DiD, CUPED, and more — applied to real products.
Learning the Foundations
Interview Prep by Company & Domain
41 availableData Scientist - YouTube
Consumer Media & Entertainment · Product Analytics & Metrics
OpenAI
14 questionsData Scientist - Integrity Measurement
Trust & Safety · Prevalence Measurement & Sampling Statistics
Netflix
17 questionsData Scientist - Identity
Commerce & Identity · Experimentation & Causal Inference
Meta
11 questionsData Scientist - Facebook
Social Networking & Community · Product Analytics & Experimentation
Microsoft
16 questionsApplied Scientist - Ads Identity
Digital Advertising Identity & Measurement · Applied ML & Entity Resolution
Data Scientist - Marketing
Marketing Analytics & Advertiser Growth · Measurement & Causal Inference
Why DataCase can help you turn interviews into offers?
Go deeper than interview prep
Most interview resources teach frameworks to memorize—we wanted something different. Every company has its own products, business model, customers, and way of thinking about metrics, so we help you understand that context first. When you're asked a question, you reason from first principles instead of trying to remember a template.
Built from how companies actually work
Every company guide starts with deep research—engineering blogs, technical talks, public writing, product launches, and conversations with people who've worked there—then it's reviewed by senior FAANG data scientists who've been through these interviews and interviewed hundreds of candidates. The goal isn't to collect trivia; it's to build the most accurate picture possible of what each company values.
Learn the “why,” not just the answer
We know many interview concepts aren't something you naturally pick up on the job—but they often show up in interviews. That's why we teach the core concepts step by step, from the ground up, with intuition, simple math, visuals, and real big tech examples. The goal is simple: when you understand why something works, you can solve new problems without memorizing answers.