Confluent
Streaming-infrastructure loops: algorithms plus deep design questions about logs, partitions, and delivery guarantees.
Typical loop
- 1Recruiter screen
- 2Technical phone screen
- 3Onsite: coding and distributed-systems rounds
- 4Architecture deep dive
- 5Behavioral round
Asked on LeetCode
All 9 by time range →- Valid SudokumediumArrayHash TableMatrixfrequency 100.0
- Sudoku SolverhardArrayHash TableBacktrackingMatrix+2frequency 98.4
- LRU CachemediumHash TableLinked ListDesignDoubly-Linked Listfrequency 94.8
- Time Based Key-Value StoremediumHash TableStringBinary SearchDesignfrequency 94.8
- Minimum Time to Eat All GrainshardArrayTwo PointersBinary SearchSortingfrequency 87.9
- Design Authentication ManagermediumHash TableLinked ListDesignDoubly-Linked Listfrequency 85.0
- Combination SummediumArrayBacktrackingfrequency 72.8
- Cache With Time Limitmediumfrequency 57.8