Perplexity
Retrieval pipelines, ranking evaluation, and shipping speed — expect to write working code quickly.
- Active questions
- 3
- Rounds covered
- 2
- Last reviewed
- Aug 27, 2026
Reported questions
The full collection. Each entry shows how many independent reports it has and when it was last seen in a live loop.
- ML designMedium
Decide whether a ranking change shipped well
Offline metrics improved but the online engagement metric is flat
1 reportAug 18, 2026 - ML designHard
Cut p99 serving latency in half
An inference service meets its p50 target but misses p99 by 3x
4 reportsAug 27, 2026 - CodingMedium
Longest window with at most k distinct values
Given an array and an integer k, return the length of the longest contiguous window containing at most k di…
4 reportsAug 19, 2026
Interviewed at Perplexity recently?
Corroborating a question takes reports from people who did not interview together. Adding yours is what keeps this collection from drifting out of date.