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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

← Groq

Mid Full-stack at Groq

Full-stackMidRejected◆ Commonly asked· 2025

5-round mid fullstack process. Coding-heavy early, design and behavioral later.

The loop · 5 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Top K frequent elements.
    MidMedium◆ Commonly asked
    #heap#hashmap
    PracticeLeetCode↗GeeksforGeeks↗
  • Combination sum.
    MidMedium◆ Commonly asked
    #backtracking
    PracticeLeetCode↗GeeksforGeeks↗
  • Rotate array.
    MidMedium◆ Commonly asked
    #array
    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 auth middleware that verifies a JWT.
    MidMedium◆ Commonly asked
    #auth#security
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 1 question

Low-Level Design

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

  • Design a toast/notification manager API.
    MidMedium◆ Commonly asked
    #oop#pub-sub
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • What is tree shaking and when does it fail?
    MidMedium◆ Commonly asked
    #bundling
    PracticeGeeksforGeeks↗Search↗
  • Explain how Promises work and implement Promise.all.
    MidMedium◆ Commonly asked
    #javascript#async
    PracticeGeeksforGeeks↗Search↗
  • Explain the difference between SSR, SSG, and ISR.
    MidMedium◆ Commonly asked
    #ssr#rendering
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

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

  • Describe working with an ambiguous or shifting requirement.
    Mid◆ Commonly asked
    #ambiguity#star
  • How do you get up to speed on an unfamiliar codebase?
    Mid◆ Commonly asked
    #learning

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.