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Updated weekly · Last refresh Oct 17

razorpay Software Engineer Interview Questions

The questions to prepare for a razorpay Software Engineer interview. Questions from real interview reports rank first. Updated daily.

50questions
~11htotal time
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1
CodingStart here. 17 questions · ~228 min
Polyfill for Flattening ArraysMedium
Practice

Flatten arbitrarily nested arrays while preserving left-to-right order and leaving the original input unchanged.

ArraysArray ManipulationAlgorithmsrazorpay
Smallest Palindrome Greater Than NHard
Practice

Construct the smallest palindrome strictly greater than a positive integer using mirroring and digit carry propagation.

ArraysAlgorithmsedge casesrazorpay
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2
Technical Fundamentals3 questions · ~40 min
OOP Pillars With ExamplesEasy

Tests whether a candidate can explain encapsulation, abstraction, inheritance, and polymorphism with practical examples.

Language FeaturesfundamentalsJVM Internalsrazorpay
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3
System Design16 questions · ~215 min
Design an In-Memory SQL DatabaseHard

Design a practical in-memory SQL database with parsing, execution, indexing, transactions, and performance considerations.

latencydatabase accessdata managementrazorpay
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4
SQL & Data Manipulation4 questions + 3 drills · ~84 min
5
Execution3 questions · ~40 min
React Re-render OptimizationMedium

Assesses performance debugging and React optimization reasoning.

ui performancerazorpay
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6
Behavioral & Leadership4 questions · ~54 min
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7
More topics3 questions · ~40 min
Project Architecture Deep DiveMedium

Evaluates your architecture-level thinking and ownership in a team setting.

razorpay
What Are CORS and How It WorksMedium

Tests understanding of browser security, request flows, and cross-origin policy behavior.

web securityrazorpay
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.