Top 15
Prep plan
Updated weekly · Last refresh Aug 30
D

Dream11 Backend Engineer Interview Questions

The questions to prepare for a Dream11 Backend Engineer interview. Questions from real interview reports rank first. Updated weekly.

15questions
~2htotal time
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1
CodingStart here. 8 questions · ~71 min
Explain Solution Time ComplexityEasy

Explain how to analyze an algorithm’s time and space complexity and justify the result from the code structure.

Hash TablesSearchingSortingDDream11
Recurring Decimal RepresentationHard

Evaluates math and string/number handling skills for recurring decimal detection and formatting.

divisionDDream11
Unique Paths With ObstaclesMedium

Tests dynamic programming skills for grid path counting with constraints.

Dynamic ProgrammingProblem SolvingMatrixDDream11
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2
SQL & Data Manipulation3 questions + 3 drills · ~57 min
3
System Design4 questions · ~36 min
Database Architecture Trade-offsHard

Assesses your understanding of write-heavy database design choices and their impacts.

Trade-offsdatabase architectureDDream11
Feature Architecture WalkthroughMedium

Assesses your ability to explain end-to-end backend architecture and design decisions.

implementationDDream11
Live Event Concurrency SystemHard

Evaluates system design for scaling and reliability under extreme traffic spikes.

system architecturescalabilityconcurrencyDDream11
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The finish line: interview-readyComplete all 15 questions plus 3 hands-on drills to finish this plan.