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Level: Senior-Level
Round: Full Journey · Type: Multiple Types · Difficulty: 6/10 · Duration: 420 min · Interviewer: Unfriendly
Topics: Algorithms, Machine Learning, System Design, Behavioral Questions
Location: San Francisco Bay Area
Interview date: 2026-01-02
The coding question involved a ticket query. The query included severity and timestamp. I needed to prioritize high severity tickets and the latest tickets. The solution needed to be able to update ticket information.
For the AI coding round, I was fortunate not to encounter new questions. The problem was to find the maximum unique character using backtracking. I optimized through three rounds and completed the first two files. The third file took 100 seconds to run, and I didn't have time for the fourth file. To pass the fourth file, I would need to switch to dynamic programming.
The behavioral questions were standard.
The machine learning design question was about location recommendation.
LeetCode similar: LeetCode 1353