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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

← Zillow

Senior Full-stack at Zillow

Full-stackSeniorOffer◆ Commonly asked· 2023

A senior fullstack loop. Fast-paced; expect follow-ups that push on depth.

The loop · 6 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Valid anagram.
    SeniorEasy◆ Commonly asked
    #string#hashmap
    PracticeLeetCode↗GeeksforGeeks↗
  • Permutations.
    SeniorMedium◆ Commonly asked
    #backtracking
    PracticeLeetCode↗GeeksforGeeks↗
  • House robber.
    SeniorMedium◆ Commonly asked
    #dp
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 2 questions

Machine Coding

Build a working component or service under time pressure.

  • Design and build a URL-shortener service (API + storage).
    SeniorMedium◆ Commonly asked
    #api#hashing
    PracticeGeeksforGeeks↗Search↗
  • Build a stopwatch with lap times.
    SeniorEasy◆ Commonly asked
    #react#state
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 2 questions

System Design

High-level architecture of a large-scale system.

  • Design a search autocomplete at Google scale.
    SeniorHard◆ Commonly asked
    #trie#ranking#cache
    PracticeGeeksforGeeks↗Search↗
  • Design a video streaming service like YouTube.
    SeniorHard◆ Commonly asked
    #cdn#storage#transcoding
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 3 questions

Tech Deep-Dive

Deep questions on your core stack and fundamentals.

  • Explain eventual consistency with a real example.
    SeniorHard◆ Commonly asked
    #distributed
    PracticeGeeksforGeeks↗Search↗
  • How do you design an idempotency-key system for payments?
    SeniorHard◆ Commonly asked
    #idempotency#payments
    PracticeGeeksforGeeks↗Search↗
  • Explain how DNS resolution works end to end.
    SeniorMedium◆ Commonly asked
    #networking
    PracticeGeeksforGeeks↗Search↗
05

Round 05 · 1 question

Hiring Manager

Scope, ownership, and role-fit discussion with the manager.

  • Tell me about a technical bet that did not pay off.
    Senior◆ Commonly asked
    #risk#judgment
06

Round 06 · 2 questions

Behavioral / HR

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

  • Describe a conflict with your manager and the outcome.
    Senior◆ Commonly asked
    #conflict#star
  • Tell me about a time you disagreed and committed.
    Senior◆ Commonly asked
    #teamwork#star

Practice each round across every company

  • DSA / Coding
  • Machine Coding
  • System Design
  • Tech Deep-Dive
  • Hiring Manager
  • 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.