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Debugging Exercise, LeetCode, System Design and AI Questions

Palo Alto NetworksSoftware Engineer · Technical Screen · Oct 2026

To get ready, I worked through a well-known list of 150 LeetCode problems, the lessons from an online system design course, that course's drills for debugging and refactoring code that already exists, and a few YouTube walkthroughs of classic system design questions. In system design I mostly picked simpler problems and read up on fundamentals such as APIs, caching, databases and concurrency. I a…

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