Tinder Backend Engineer Interview Questions
The questions to prepare for a Tinder Backend Engineer interview. Questions from real interview reports rank first. Updated weekly.
Find the one extra integer in two nearly identical Tinder Discovery lists using XOR in linear time and constant space.
TinderReturn the k largest Tinder match scores from an unsorted array using a min-heap in O(n log k) time.
TinderFind the one extra integer between two unsorted Tinder candidate arrays using XOR in linear time and constant space.
TinderExplain the ACID properties of database transactions and their importance.
TinderExplain normalization for data integrity and when denormalization is useful for faster reporting and simpler analytical queries.
TinderIdentify each Tinder user's first non-null message using ROW_NUMBER and deterministic timestamp ordering.
TinderCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
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Meta ITCalculate Tinder's average swipes per user for the previous calendar month using a LEFT JOIN, CTE, and date filtering.
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Tests your understanding of consistency models, distributed transactions, and practical trade-offs.
TinderAssesses system design understanding for large-scale information retrieval pipelines.
TinderDesign a real-time pipeline for sensor events that transforms data and feeds a UI with low latency.
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