The interview process at TikTok was structured and efficient.

I first had a recruiter screen where we discussed my background and what I was looking for.

Then, I had a technical screen with a frontend engineer that involved a live coding challenge using JavaScript and React.

After passing that, I moved to the onsite (virtual) interviews, which consisted of three rounds:

• System design (frontend focus)
• Coding
• Behavioral

The interviewers were professional, and the problems were challenging but fair.

Overall, the process took around three weeks.

Q: How would you build a custom hook to fetch data from an API in React?

Q: How would you design a live chat widget that updates messages in real time and is embeddable on any website?