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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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S

Trading · Bala Cynwyd, PA

Susquehanna

SIG — options and trading. Poker-style probability, EV, and coding rounds.

5 interviews shared — read how each round went.

5 of 5 shown

Role
Level
Full-stackNew Grad / JuniorRejected

New Grad / Junior · Full-stack

Junior fullstack interview. Balanced across coding, design, and collaboration.

5 rounds · 11 questions · 2023→
FrontendMidNo offer

Mid · Frontend

Mid frontend interview. Pragmatic questions — more real-world than pure puzzles.

5 rounds · 11 questions · 2023→
BackendSeniorNo offer

Senior · Backend

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

6 rounds · 13 questions · 2024→
FrontendSeniorWithdrew

Senior · Frontend

6-round senior frontend process. Pragmatic questions — more real-world than pure puzzles.

6 rounds · 13 questions · 2023→
BackendStaff+Offer

Staff+ · Backend

A staff backend loop. Fundamentals mattered as much as getting to an answer.

5 rounds · 9 questions · 2023→

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