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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

← Peloton

Mid Frontend at Peloton

FrontendMidOffer◆ Commonly asked· 2024

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

The loop · 5 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Permutations.
    MidMedium◆ Commonly asked
    #backtracking
    PracticeLeetCode↗GeeksforGeeks↗
  • Min cost to connect all points.
    MidMedium◆ Commonly asked
    #graph#mst
    PracticeLeetCode↗GeeksforGeeks↗
  • Set matrix zeroes.
    MidMedium◆ Commonly asked
    #matrix
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a nested, collapsible comment thread.
    MidMedium◆ Commonly asked
    #react#recursion
    PracticeGeeksforGeeks↗Search↗
  • Build a stopwatch with lap times.
    MidEasy◆ Commonly asked
    #react#state
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 1 question

Low-Level Design

Object-oriented / low-level design of a focused module.

  • Design a client-side event bus / pub-sub.
    MidMedium◆ Commonly asked
    #pub-sub#oop
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • How does a service worker enable offline support?
    MidMedium◆ Commonly asked
    #pwa#offline
    PracticeGeeksforGeeks↗Search↗
  • Explain memoization: useMemo, useCallback and React.memo.
    MidMedium◆ Commonly asked
    #react#perf
    PracticeGeeksforGeeks↗Search↗
  • What is tree shaking and when does it fail?
    MidMedium◆ Commonly asked
    #bundling
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

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

  • Describe a conflict with your manager and the outcome.
    Mid◆ Commonly asked
    #conflict#star
  • Tell me about a time you failed and what you learned.
    Mid◆ Commonly asked
    #growth#star

Practice each round across every company

  • DSA / Coding
  • Machine Coding
  • Low-Level Design
  • 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.