Looking back, the interview experience was surprisingly smooth and straightforward. After a couple of technical rounds, I faced a system design question about building a low-latency alerting platform and a DSA question on finding the top-K elements in a sliding window. Funny enough, I recognized the latter instantly — it was the same problem I'd worked through on PracHub. Overall, the process felt easy, and I received an offer, which I ultimately declined to pursue other opportunities.

On campus. Talking for 25 minutes, and implementing a java code sample. The code sample is about arrays. He introduced a new data structure and let me to implements add, delete and other methods of this data structure.