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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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Fintech · New York, NY

American Express

Cards and travel. Practical coding, APIs, and correctness-focused rounds.

5 interviews shared — read how each round went.

5 of 5 shown

Role
Level
Full-stackNew Grad / JuniorNo offer

New Grad / Junior · Full-stack

A junior fullstack loop. Coding-heavy early, design and behavioral later.

5 rounds · 11 questions · 2025→
FrontendMidNo offer

Mid · Frontend

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

5 rounds · 11 questions · 2023→
Full-stackMidWithdrew

Mid · Full-stack

5-round mid fullstack process. Balanced across coding, design, and collaboration.

5 rounds · 11 questions · 2025→
BackendSeniorRejected

Senior · Backend

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

6 rounds · 13 questions · 2024→
BackendStaff+Withdrew

Staff+ · Backend

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

5 rounds · 9 questions · 2024→