TikTok

Software Development Engineer (SDE) Interview Experience - United States

October 1, 2025

Neutral ExperienceNo Offer

Process

OA, followed by 3 rounds of onsite interviews.

All three rounds were coding rounds:

Two medium and one hard LeetCode level coding questions.
One of the rounds also included some full-stack related questions.

Questions

A hard LeetCode level question, and a project deep dive.

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Interview Statistics

The following metrics were computed from 33 interview experiences for the TikTok Software Development Engineer (SDE) role in United States.

Success Rate

Pass Rate

TikTok's interview process for their Software Development Engineer (SDE) roles in the United States is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive36%

Neutral42%

Negative21%

Candidates reported having good feelings for TikTok's Software Development Engineer (SDE) 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