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Interview questions from top companies, mapped to the exact round they show up in. Prep for what you will actually face.

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Online AssessmentDSA / CodingMachine CodingLow-Level Design

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The Loop aggregates publicly shared interview experiences and curated commonly-asked questions, each labeled with its source. Not affiliated with any company listed.

CC BY-NC 4.0 · © 2026

← Paytm

Senior Frontend at Paytm

FrontendSeniorNo offer◆ Commonly asked· 2024

A senior frontend loop. Pragmatic questions — more real-world than pure puzzles.

The loop · 6 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Permutations.
    SeniorMedium◆ Commonly asked
    #backtracking
    PracticeLeetCode↗GeeksforGeeks↗
  • Product of array except self.
    SeniorMedium◆ Commonly asked
    #array#prefix-sum
    PracticeLeetCode↗GeeksforGeeks↗
  • Clone a graph.
    SeniorMedium◆ Commonly asked
    #graph#dfs
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a carousel/image slider.
    SeniorMedium◆ Commonly asked
    #react#ui
    PracticeGeeksforGeeks↗Search↗
  • Build an accessible tabs component with keyboard nav.
    SeniorMedium◆ Commonly asked
    #react#a11y
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 2 questions

System Design

High-level architecture of a large-scale system.

  • Design a ride-sharing service like Uber.
    SeniorHard◆ Commonly asked
    #geospatial#matching
    PracticeGeeksforGeeks↗Search↗
  • Design an image-heavy gallery with lazy loading and a CDN.
    SeniorMedium◆ Commonly asked
    #frontend#perf#cdn
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain prototypal inheritance.
    SeniorMedium◆ Commonly asked
    #javascript
    PracticeGeeksforGeeks↗Search↗
  • How does React batching and the render phase work?
    SeniorHard◆ Commonly asked
    #react
    PracticeGeeksforGeeks↗Search↗
  • Difference between controlled and uncontrolled inputs.
    SeniorEasy◆ Commonly asked
    #react#forms
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 1 question

Hiring Manager

Scope, ownership, and role-fit discussion with the manager.

  • How do you run an incident and the postmortem after?
    Senior◆ Commonly asked
    #reliability#process
06

Round 06 · 2 questions

Behavioral / HR

Values, collaboration, and past-experience (STAR) questions.

  • Tell me about a time you went above and beyond for a customer.
    Senior◆ Commonly asked
    #customer#star
  • Tell me about a project you are most proud of.
    Senior◆ Commonly asked
    #star

◆ This experience is composed from commonly reported questions for this role and level. Real, individually-shared interviews will be layered in over time.