Onsite

Five Rounds from Top-K URLs to Log Collection

OracleSoftware Engineer · Onsite · Sep 2026

Screening Given a massive volume of URL access logs and limited memory, find the global Top K URLs and the Top K most frequently accessed URLs over the past 24 hours. The main focus was system-design thinking, trade-offs, and pseudocode implementation. Round 2 Given an event stream in the format (userId, eventType, timestamp), find the Top 100 users with the most events during the past hour. This…

Shared by a candidate · reported Sep 2026. Interview formats change; use it as a guide, not a script.