Machine Learning Engineer · Phone Screen · Multiple Types

[ OK ] d1650572-c2a6-4b17-8aa7-429b9d227e2e — full writeup

[ INFO ] category: Behavioral · Multiple Types difficulty: 5 freq: first seen: 2026-02-28

[5][MULTIPLE TYPES]Machine LearningBias-Variance TradeoffGradient Vanishing

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Pinterest — Machine Learning Engineer ✅ Passed

Level: Unknown Level

Round: Phone Screen · Type: Multiple Types · Difficulty: 5/10 · Duration: 60 min · Interviewer: Neutral

Topics: Machine Learning, Bias-Variance Tradeoff, Gradient Vanishing

Location: San Francisco Bay Area

Interview date: 2025-08-15

The phone screen started with introductions of two projects I had worked on. Then I was asked ML fundamental questions and a coding question.

I was asked about model complexity and its impact on bias and variance, and also about gradient vanishing.

The coding question was similar to LeetCode 815, but with pins and boards instead of other elements.

LeetCode similar: LeetCode 815

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