Machine Learning Engineer Interview Experience - Warsaw, Masovian Voivodeship

February 1, 2025

Positive ExperienceNo Offer

Process

My interview process consists of:

1 screening interview
1 LeetCode-style coding round
2 machine learning system design rounds
1 additional coding round
1 behavioral interview evaluating problem-solving, system design, and communication skills.

Questions

What is the difference between ReLU and Sigmoid?

L1 vs L2 regularization.

DFS LC Question

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Interview Statistics

The following metrics were computed from 2 interview experiences for the Pinterest Machine Learning Engineer role in Warsaw, Masovian Voivodeship.

Success Rate

Pass Rate

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

Experience Rating

Positive100%

Neutral0%

Negative0%

Candidates reported having very good feelings for Pinterest's Machine Learning Engineer interview process in Warsaw, Masovian Voivodeship.

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