TikTok

Machine Learning Engineer Interview Experience - United States

July 1, 2025

Neutral ExperienceNo Offer

Process

The interview is comprised of a resume interview, followed by a deep dive into the resume. This includes asking about Machine Learning/LLM questions.

Then, it moves into the code-heavy portions, including Machine Learning-related coding and LeetCode problems.

Questions

Solve the N-Queens problem.

How many possible ways are there?

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Interview Statistics

The following metrics were computed from 109 interview experiences for the TikTok Machine Learning Engineer role in United States.

Success Rate

Pass Rate

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

Experience Rating

Positive37%

Neutral43%

Negative20%

Candidates reported having good feelings for TikTok's Machine Learning Engineer interview process in United States.

TikTok Interview Questions

Subarray Sum Equals K

Medium

Determine the total number of continuous subarrays within a given array that sum up to a specific target value, k.

ArraysSliding Windows

Longest Substring Without Repeating Characters

Medium

Find the length of the longest substring within a given string that contains no repeating characters. The substring must be contiguous.

StringsSliding Windows

Generate Parentheses

Medium

Given a number 'n', generate all possible well-formed (balanced) parentheses strings of length 2*n. For instance, if n=3, you need to create all valid combinations like '((()))', '(()())', etc.

RecursionStrings