TikTok Software Developer interview questions

I apply for a new grad role in November 2021. And got an Online assessment of four questions, two easy two medium. After two weeks, phone interview: medium follow-up time + space complexity. After a few days, virtual onsite first round: medium and one follow-up time and space complexity. Last, the manager interviewed with some general behavior questions. The whole process took around 2 months.

Three round of technical interview in total, pretty reasonable standard of difficulty, more on logic and reasoning of the problem instead of trick question. Interviewers are professional. It was online live coding.