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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

← Lenskart

New Grad / Junior Backend at Lenskart

BackendNew Grad / JuniorOutcome unknown◆ Commonly asked· 2025

Junior backend interview. Fast-paced; expect follow-ups that push on depth.

The loop · 5 rounds

01

Round 01 · 1 question

Online Assessment

Timed online coding / aptitude screen, usually the first filter.

  • Debugging + output-prediction multiple choice section.
    New Grad / JuniorEasy◆ Commonly asked
    #fundamentals
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Best time to buy and sell stock.
    New Grad / JuniorEasy◆ Commonly asked
    #array#greedy
    PracticeLeetCode↗GeeksforGeeks↗
  • Rotting oranges.
    New Grad / JuniorMedium◆ Commonly asked
    #bfs#grid
    PracticeLeetCode↗GeeksforGeeks↗
  • Same tree.
    New Grad / JuniorEasy◆ Commonly asked
    #tree
    PracticeLeetCode↗GeeksforGeeks↗
03

Round 03 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a CSV importer that streams and validates rows.
    New Grad / JuniorMedium◆ Commonly asked
    #streaming#validation
    PracticeGeeksforGeeks↗Search↗
  • Build an in-memory pub/sub with topic subscriptions.
    New Grad / JuniorMedium◆ Commonly asked
    #pub-sub
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain database replication lag and how to mitigate it.
    New Grad / JuniorMedium◆ Commonly asked
    #databases#replication
    PracticeGeeksforGeeks↗Search↗
  • SQL vs NoSQL — how do you choose for a given workload?
    New Grad / JuniorMedium◆ Commonly asked
    #databases
    PracticeGeeksforGeeks↗Search↗
  • Explain how a hash index differs from a B-tree index.
    New Grad / JuniorHard◆ Commonly asked
    #databases#indexing
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

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

  • Tell me about a time you simplified something overly complex.
    New Grad / Junior◆ Commonly asked
    #judgment#star
  • Tell me about a time you led without a title.
    New Grad / Junior◆ Commonly asked
    #leadership#star

Practice each round across every company

  • Online Assessment
  • DSA / Coding
  • Machine Coding
  • Tech Deep-Dive
  • Behavioral / HR

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