Pinterest Data Scientist interview experience

It was a time-boxed session where I had to answer one or two technical questions in about an hour, with an emphasis on writing clean, correct logic under pressure. The problems centered on common computer science building blocks—data structures like arrays, hash maps, and graphs, plus algorithms such as sorting and recursion. The prompts were framed in practical ways tied to what Pinterest does day to day, like search ranking, feed personalization, or clustering.

I also remember the possibility of getting a system-design-lite style question or SQL-flavored questions if the role leaned more