AppsFlyer Solutions Engineer interview experience

I started with an initial HR conversation and then moved into technical evaluation. In the first technical round, I worked through a speed-up task: a slow function backed by an external API, where the goal was to implement something like an LRU strategy to return results faster. I passed that part and felt reasonably confident that I could keep momentum.

Then the system design round didn’t go as well, and later the process got even tougher because one of the technical interviews was delivered in Python even though I didn’t know Python well. I ended up stuck simply because I didn’t recognize