I applied online. I interviewed at TikTok in Apr 2024
Interview
Two mid-leetcode problems, and some deep dig of cv. The interviewer focused mainly on the numbers of projects (like how to get 30% speedup). Not really good mood, 40mins for coding and 20mins for chatting.
The first round is an online assessment on HackerRank, which takes around 2 hours to complete. If you miss the first week of potential online assessments, they will allow you to take the OA the next week.
Technical 1hr call - System design 1hr - Maybe another system or technical interview if needed - Behavioral last round with hiring manager to see if you are a good fit etc