Learning Engineer Interview Questions

6,591 learning engineer interview questions shared by candidates

A set S of n integers originally contains all of the numbers from 1 to n (and no other numbers). Due to corruption, exactly one of the numbers in the set S is duplicated onto another number in the set. The corrupted set has the integers 1 to n, with one number repeated and one missing number. Neither the original nor the corrupted sets are guaranteed to be in order. The original array is not given to us. Write a function which takes an integer array of arbitrary length at runtime (the corrupted set) as input, and returns the duplicated number and the missing number as an array.
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Deep Learning Engineer

Interviewed at Forterra

4.1
Nov 5, 2024

A set S of n integers originally contains all of the numbers from 1 to n (and no other numbers). Due to corruption, exactly one of the numbers in the set S is duplicated onto another number in the set. The corrupted set has the integers 1 to n, with one number repeated and one missing number. Neither the original nor the corrupted sets are guaranteed to be in order. The original array is not given to us. Write a function which takes an integer array of arbitrary length at runtime (the corrupted set) as input, and returns the duplicated number and the missing number as an array.

HR started the interview by saying that I should know everything about ml6 already, and that the interview is mostly for her to know me. The interview process includes multiple days of homework which I didn't really appreciate. Arrogant HR
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Machine Learning Engineer

Interviewed at ML6

4.4
Dec 28, 2023

HR started the interview by saying that I should know everything about ml6 already, and that the interview is mostly for her to know me. The interview process includes multiple days of homework which I didn't really appreciate. Arrogant HR

HR questions: - Tell me a situation which has been challenging to work with your team or your client. - Explain to a non-technical audience which project are you working / have you worked in the past months Technical questions: - How have you pre-processed the dataset? - What is transfer learning? - Which techniques can be used to improve model performances?
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Machine Learning Engineer

Interviewed at ML6

4.4
Jun 15, 2025

HR questions: - Tell me a situation which has been challenging to work with your team or your client. - Explain to a non-technical audience which project are you working / have you worked in the past months Technical questions: - How have you pre-processed the dataset? - What is transfer learning? - Which techniques can be used to improve model performances?

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