RejectedOnsite

Five-Round Onsite Loop Ends in Rejection

PinterestData Scientist · Senior+ · Onsite · Oct 2025

Fresh rejection writeup — I just did a virtual onsite for a Staff Data Scientist role at Pinterest. (1) Coding: SQL joining three tables to calculate, for each country, the category with the most impressions, and to calculate the heavy user rate (heavy user defined as active at least 4 days in the past week, with at least 3 features used on one of those days). There was also a simple Python quest…

Shared by a candidate · reported Oct 2025. Interview formats change; use it as a guide, not a script.