TikTok Software Engineer interview experience

After that, the role understanding quickly turned into a KPI framing question, where I had to explain how I’d set metrics for the position. From there, the interview shifted hard into troubleshooting and incident-style thinking centered on user tickets.

I was walked through a series of escalating scenarios: a platform page failing to load for someone who hadn’t used the platform before, what early signals would hint at an access-permission root cause, and how I’d investigate ticket volume rising over a week. I then had to describe how I’d write SQL to find recurring patterns and, separately,