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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.

MIT · © 2026

← Twitch

New Grad / Junior Full-stack at Twitch

Full-stackNew Grad / JuniorRejected◆ Commonly asked· 2024

A junior fullstack loop. Balanced across coding, design, and collaboration.

The loop · 5 rounds

01

Round 01 · 1 question

Online Assessment

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

  • Find the number of distinct substrings of length k.
    New Grad / JuniorMedium◆ Commonly asked
    #sliding-window#string
    PracticeGeeksforGeeks↗Search↗
02

Round 02 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Trapping rain water.
    New Grad / JuniorHard◆ Commonly asked
    #two-pointers#array
    PracticeLeetCode↗GeeksforGeeks↗
  • Word search II.
    New Grad / JuniorHard◆ Commonly asked
    #trie#backtracking
    PracticeLeetCode↗GeeksforGeeks↗
  • Serialize and deserialize a binary tree.
    New Grad / JuniorHard◆ Commonly asked
    #tree#dfs
    PracticeLeetCode↗GeeksforGeeks↗
03

Round 03 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build an image carousel with autoplay and swipe.
    New Grad / JuniorMedium◆ Commonly asked
    #react#ui
    PracticeGeeksforGeeks↗Search↗
  • Build a "Wordle" clone with keyboard input.
    New Grad / JuniorMedium◆ Commonly asked
    #react#state
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain memoization: useMemo, useCallback and React.memo.
    New Grad / JuniorMedium◆ Commonly asked
    #react#perf
    PracticeGeeksforGeeks↗Search↗
  • How does HTTPS/TLS establish a secure connection?
    New Grad / JuniorMedium◆ Commonly asked
    #networking#security
    PracticeGeeksforGeeks↗Search↗
  • Idempotency in APIs — why and how.
    New Grad / JuniorMedium◆ Commonly asked
    #api-design#idempotency
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

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

  • Tell me about a time you went above and beyond for a customer.
    New Grad / Junior◆ Commonly asked
    #customer#star
  • A time you influenced a decision without authority.
    New Grad / Junior◆ Commonly asked
    #influence#star

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