TikTok Machine Learning Engineer interview questions

A coding question and some ML theory questions, and then followed by some Q/A about the company. Overall it’s not very hard, but I didn’t get passed to the next round.

Recruiter screen then organised first technical interview. Told a few days before the role had been pushed into next quarter, then heard nothing subsequently. Reached out again and had the interview rescheduled to then be told 2 days before that it was cancelled as they didn't feel I had appropriate skills. Bit strange, felt symptomatic of a larger chaotic vibe I got from the company.