TikTok Software Developer interview questions

I interviewed for Tiktok in October 2021. There were three round of technical interviews described as below: Round 1 : Coding interview. After a brief introduction I was asked two coding questions to be solved in one hour. The interviewer was good, he made me quite comfortable and the session interactive. I solved both the questions, and he did help me a bit with the second one. Result turn around time : 24 hours. Round 2 : System design + projects worked on so far. Result turn around time: 24 hours. Round 3: Last round with Lead engineer. It was a mix of culture fit interview , technical questions, system design and coding. Result turn around time : 1 week. I did well in the interviews technically and I still wonder why I got rejected. I totally respect the decision of the company but, I'm disappointed that I was not given any feedback so that I can work on the points, if I find them to be valid. I only got am automated rejection email.

The online assessment was proctored hacker rank for 2 hours. Occurs once in two weeks on a specific time frame of 48 hours. It was a bit hard as we could not look up syntax