TikTok Software Development Engineer interview questions
based on 8 ratings - Updated 27 Oct 2025
Averageinterview difficulty
Very positiveinterview experience
How others got an interview
80%
Applied online
Applied online
20%
Employee referral
Employee referral
Interview search
8 interviews
Viewing 1 - 5 of 8 Interviews
TikTok interviews FAQs
Candidates applying for Software Development Engineer roles take an average of 7 days to get hired, when considering 1 user submitted interviews for this role. To compare, the hiring process at TikTok overall takes an average of 27 days.
Common stages of the interview process at TikTok as a Software Development Engineer according to 1 Glassdoor interviews include:
Phone interview: 50%
One on one interview: 50%
Here are the most commonly searched roles for interview reports -
Right now I’m talking about the OA process. The questions are all from CodeSignal, and since CodeSignal has a question bank, there’s a high chance you’ll get a problem that has appeared before.
Interview questions [1]
Question 1
The first two questions are quite easy, while the last two are more challenging. It really helps if you’ve seen them before. One key difference from LeetCode is that the problems are usually much longer in description, and they rarely test dynamic programming.
I applied through an employee referral. The process took 4 weeks. I interviewed at TikTok in July 2025
Interview
There are four rounds, 3 technical rounds and 1 hiring manager round
1. Coding, 2 questions, medium level
2. Coding, 3 questions, 1 easy, 2 medium
3. System design, easy level
4. Hiring manager round
Interview questions [1]
Question 1
1. One BFS question and one DFS question (combination)
2. 3 consecutive questions, should use sorting and minheap
3. Design a Flink job which is working on sample joiner for 2 streams, one from prediction steam and user action data steam.
4. Questions about resume, project experiences deep dive, asked about ML/AI related projects (I don't hold during professional career)
I took the interview last month, and I was asked to solve several programming questions, including binary tree traversal and related algorithms. Although I completed the interview, I didn’t receive an offer in the end