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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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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

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Z

SaaS · San Francisco, CA

Zendesk

Customer service software. Practical full-stack and platform design.

5 interviews shared — read how each round went.

5 of 5 shown

Role
Level
BackendNew Grad / JuniorOutcome unknown

New Grad / Junior · Backend

Junior backend interview. Pragmatic questions — more real-world than pure puzzles.

5 rounds · 11 questions · 2023→
FrontendNew Grad / JuniorOffer

New Grad / Junior · Frontend

Junior frontend interview. Fundamentals mattered as much as getting to an answer.

5 rounds · 11 questions · 2023→
BackendMidRejected

Mid · Backend

Mid backend interview. Balanced across coding, design, and collaboration.

5 rounds · 11 questions · 2023→
FrontendStaff+Outcome unknown

Staff+ · Frontend

5-round staff frontend process. Fundamentals mattered as much as getting to an answer.

5 rounds · 9 questions · 2024→
Full-stackStaff+No offer

Staff+ · Full-stack

Staff fullstack interview. Fundamentals mattered as much as getting to an answer.

5 rounds · 9 questions · 2023→

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