Machine Learning Engineer Interview Experience - Poland

May 8, 2025

Neutral ExperienceNo Offer

Process

Starts with an online coding task and theoretical questions (ABCD). If successful, the next step is an interview meeting with tech specialists. Coding tasks require machine learning knowledge; some are easy and some are more difficult.

Questions

Regularization methods for ML models

Interview Statistics

The following metrics were computed from 3 interview experiences for the Pinterest Machine Learning Engineer role in Poland.

Success Rate

Pass Rate

Pinterest's interview process for their Machine Learning Engineer roles in Poland is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive67%

Neutral33%

Negative0%

Candidates reported having very good feelings for Pinterest's Machine Learning Engineer interview process in Poland.

Pinterest Interview Questions

Count and Say

Medium

The count-and-say sequence is generated iteratively. Given a starting number, compute the next number in the sequence by describing the previous one.

StringsRecursion

Reconstruct Itinerary

Hard

You're given a list of flight tickets, each representing a departure and arrival airport. Reconstruct the itinerary by visiting all the airports in the lexicographically smallest order, starting from "JFK".

Graphs

Optimal Account Balancing

Hard

You are given a list of transactions between people. Determine the minimum number of transactions needed to settle all debts, such that everyone owes or is owed exactly zero.

Dynamic ProgrammingGreedy Algorithms