TikTok

Backend Software Engineer - Trust and Safety Interview Experience - Seattle, Washington

September 21, 2025

Positive ExperienceNo Offer

Process

Round 1: Technical Interview, LeetCode hard question.

Round 2: Project/Experience deep dive, LeetCode hard question (only 25 minutes). (Rejected)

The interviewers were very nice, gave hints, and seemed interested in what I had to say. Very smooth and positive experience overall.

Questions

LeetCode Hard Question: Word Ladder (Round 1)

How have you handled changing requirements or approaching deadlines?

What was the most challenging aspect of one of your projects?

LeetCode 282: Expression Add Operators (Hard)

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Interview Statistics

The following metrics were computed from 1 interview experience for the TikTok Backend Software Engineer - Trust and Safety role in Seattle, Washington.

Success Rate

Pass Rate

TikTok's interview process for their Backend Software Engineer - Trust and Safety roles in Seattle, Washington is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive100%

Neutral0%

Negative0%

Candidates reported having very good feelings for TikTok's Backend Software Engineer - Trust and Safety interview process in Seattle, Washington.

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