Scale Data Scientist Interview Questions
The questions to prepare for a Scale Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Aggregate user activity by week, then use LAG to compare sessions and watch time versus the prior active week.
ScaleCalculate 30-day policyholder claim counts and rank regions by loss ratio using PostgreSQL window functions.
TravelersCalculate each user's 7-day rolling transaction average and daily spend rank using PostgreSQL window functions.
RakutenCCRED
ClipDesign a campaign experiment by choosing the right randomization unit and checking power, interference, and guardrails.
ScaleDesign an experiment to determine whether a new product feature causes a meaningful retention lift without harming key guardrail metrics.
ScaleSign up to see every question
Create a free account to unlock this list and practice real interview questions.
Build a classifier for a highly imbalanced dataset and choose training and evaluation methods that surface rare positives.
ScaleTests statistical methods for detecting meaningful drift in model outputs.
ScaleFramework for choosing a feature's primary success metric and guardrails before launch.
ScaleInvestigate why a key KPI moved the wrong way after a product change and separate signal from noise.
ScaleEvaluates your ability to build an efficient data and inference pipeline for computer vision models.
Scale