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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

← Notion

Mid Full-stack at Notion

Full-stackMidWithdrew◆ Commonly asked· 2023

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

The loop · 5 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Course Schedule — detect a cycle / topological sort.
    MidMedium◆ Commonly asked
    #graph#topo-sort
    PracticeLeetCode↗GeeksforGeeks↗
  • Set matrix zeroes.
    MidMedium◆ Commonly asked
    #matrix
    PracticeLeetCode↗GeeksforGeeks↗
  • Merge two sorted linked lists.
    MidEasy◆ Commonly asked
    #linked-list
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Build a form builder that renders from a JSON schema.
    MidHard◆ Commonly asked
    #react#forms
    PracticeGeeksforGeeks↗Search↗
  • Build a file-upload service with chunking and resume.
    MidHard◆ Commonly asked
    #streaming#storage
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 1 question

Low-Level Design

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

  • Design a rate limiter (classes + interfaces).
    MidMedium◆ Commonly asked
    #oop#rate-limit
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain `this` binding and the call/apply/bind trio.
    MidMedium◆ Commonly asked
    #javascript
    PracticeGeeksforGeeks↗Search↗
  • Explain the CAP theorem with a practical example.
    MidHard◆ Commonly asked
    #distributed
    PracticeGeeksforGeeks↗Search↗
  • How do CSS specificity and the cascade resolve conflicts?
    MidMedium◆ Commonly asked
    #css
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 2 questions

Behavioral / HR

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

  • Describe a disagreement on a code review and how it ended.
    Mid◆ Commonly asked
    #conflict#star
  • Describe working with an ambiguous or shifting requirement.
    Mid◆ Commonly asked
    #ambiguity#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.