Dream11 Backend Engineer Interview Questions
The questions to prepare for a Dream11 Backend Engineer interview. Questions from real interview reports rank first. Updated daily.
Explain how to analyze an algorithm’s time and space complexity and justify the result from the code structure.
Evaluates math and string/number handling skills for recurring decimal detection and formatting.
Tests ability to implement efficient search on rotated sorted arrays using binary search.
Assesses your understanding of write-heavy database design choices and their impacts.
Assesses your ability to explain end-to-end backend architecture and design decisions.
Evaluates system design for scaling and reliability under extreme traffic spikes.
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Tests your ability to optimize MySQL queries for low latency and high throughput.
Assesses SQL query writing and data access design thinking for Dream11 backend systems.
Optimize a PostgreSQL reporting query by reducing scanned rows, preserving unmatched records, and selecting the latest related review efficiently.
Zillow
OneOptimize a PostgreSQL aggregation query by filtering early, reducing rows before joins, and returning qualifying active customers.
SofteamSSoftware Medical Informatics
GlassdoorOptimize a PostgreSQL query that aggregates millions of Uber rides and ranks active drivers by city.
Uber