TikTok

Data Engineer Interview Experience - San Jose, California

July 27, 2025

Neutral ExperienceNo Response

Process

Recruiter phone screen.

Two SQL rounds, one Python round, and one System Design round for a Data Engineer position.

SQL rounds were medium to hard. Python was LeetCode medium. System Design was medium to hard.

Questions

Why are you looking for new opportunities?

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Interview Statistics

The following metrics were computed from 7 interview experiences for the TikTok Data Engineer role in San Jose, California.

Success Rate

14%

Pass Rate

TikTok's interview process for their Data Engineer roles in San Jose, California is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive57%

Neutral43%

Negative0%

Candidates reported having very good feelings for TikTok's Data Engineer interview process in San Jose, California.

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