Databricks Interview Question Bank
Databricks interviews are unusually bank-driven: candidates who know the recurring prompt families often recognize the round within the first few minutes. The loop mixes algorithmic coding with low-level systems and product-grounded design, then puts real weight on behavioral, hiring-committee, and reference signals after the technical rounds.
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OJ Problems
practice in the online judgeOptimal Commute GridCircuit Breaker Based Database Replica RoutingCustomer Revenue SystemFind the First Anagram OccurrenceIP Firewall Rule MatchingDesign an API QPS CounterGeneralized Tic-Tac-ToeKV Store with Sliding-Window Average LatencyFind the First Anagram SubstringDesign Tic-Tac-ToeDesign a Snapshot Set IteratorDesign Generalized Tic-Tac-ToeSnapshot Set IteratorGroup AnagramsCustomer Revenue System with Referrals and Top K QueryShortest Path in a Preorder-Labeled Fibonacci TreeShortest Path in a Fibonacci TreeOptimal CommuteIP CIDR Range QueryFile Encryption Tree OptimizationSnapshot Set IteratorString Index Partition Mapping (Minimum Partitions after Deletion)Grid BFS: choose best travel mode by shortest time then lowest costUniformly sample edges to connect n connected components into one connected graphGrid pathfinding with time & cost optimality (BFS / shortest path variant)Implement Gradient Descent for Linear Regression (MSE) and debug convergenceRemove an interval by index and simplify (merge) cover intervalsImplement Linear Regression with Gradient Descent from ScratchDesign and Implement a Lazy Array with Testable LazinessKV Cache with Hit Count