Flatiron Health Interview Questions
Practice the exact questions companies are asking right now.
Demonstrate concise leadership
You receive feedback that in case interviews you ask many clarifying questions, take a few seconds before answering, and your answers are not concrete...
Build a robust ML pipeline
You inherit an ML pipeline that predicts next-7-day churn for users, but data quality is inconsistent and feature drift is suspected. A) Propose an en...
Design success and guardrail metrics
You are launching a new recommendation module on a content platform. Design a metrics framework and an experiment plan. A) Define one primary success ...
Compute sample size and significance
You are planning a two-variant A/B test with equal allocation and a binary primary metric (conversion). Baseline rate p0 = 0.045. You want to detect a...
Write SQL window functions for streaks
Assume today is 2025-09-01. Using standard SQL (e.g., PostgreSQL), answer the following using window functions only (no procedural loops, no correlate...
Compute churn metrics and rank top students
You have two tasks. Part A (R): You receive a Customers CSV with columns: id (INT), signup_date (YYYY-MM-DD), last_active_date (YYYY-MM-DD), churned (...