TikTok Software Engineer interview experience

A week or so later the technical part began, and it was clearly more than just a coding screen—there was a challenging sequence that combined algorithmic problem solving with heavier system thinking. The technical rounds pushed me into a sliding-window style approach for one question, and I remember realizing mid-round that I’d practiced a similar pattern just days earlier.

After that kind of technical intensity, the process ended with a system design discussion that was less about memorizing templates and more about how I thought through data flow and trade-offs. The whole thing took about