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Explore questions associated with Spotify. Review the source details, then use the workspace for code, notes, and diagrams.
35 questions in the library. A source association does not guarantee a future interview question.
Behavioral and leadership · Coding · Machine learning · ML system design · System design
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Design an ad server that serves banner ads to Spotify desktop clients with rotation every 30 seconds, enforcing limits of 10,000 total views per ad…
Companies: Spotify
Last reported May 2025
Extract the distinct digits from an alphanumeric string and return the second-largest digit value (or -1 if fewer than two distinct digits exist). The string…
Companies: Spotify
Last reported Mar 2025
Design a social music feature that allows users to see what songs their friends are currently listening to or have recently played, similar to Spotify's…
Companies: Spotify
Last reported Jan 2025
Companies: Spotify, Oracle
Last reported Jan 2025
Companies: Spotify
Last reported Jan 2025
Companies: Spotify
AI Product Management · Recommendation Systems
Companies: Spotify
Ranking Models · Recommendation Systems
Maintain a data structure that supports adding integers from a stream and returning the current median efficiently for many interleaved addNum and findMedian calls. The…
Companies: Spotify, Adobe, Amazon, D. E. Shaw +4
Data Stream · Design · Heap (Priority Queue) · Sorting
Return the k-th largest element (by sorted order, not distinct) from an unsorted array. For inputs up to ~1e5 elements, solve it faster than full…
Companies: Spotify, Bloomberg, LinkedIn, Meta +1
Array · Divide and Conquer · Heap (Priority Queue) · Quickselect
Design a data structure that, given a continuous stream of numbers and a fixed window size k, returns the moving average of the last k…
Companies: Spotify, Box, Google, Meta
Array · Data Stream · Design · Queue