theloop
CompaniesRoundsQuestionsSearchProgress
theloop

Interview questions from top companies, mapped to the exact round they show up in. Prep for what you will actually face.

View source

Browse

CompaniesSearchAll rounds

Rounds

Online AssessmentDSA / CodingMachine CodingLow-Level Design

Contribute

Share an interviewReport an issueStar on GitHub

The Loop aggregates publicly shared interview experiences and curated commonly-asked questions, each labeled with its source. Not affiliated with any company listed.

MIT · © 2026

←All companies
B

Fintech · Oakland, CA

Block

Square and Cash App. Payments coding and pragmatic system design.

5 interviews shared — read how each round went.

5 of 5 shown

Role
Level
BackendNew Grad / JuniorOutcome unknown

New Grad / Junior · Backend

A junior backend loop. Balanced across coding, design, and collaboration.

5 rounds · 11 questions · 2025→
Full-stackNew Grad / JuniorWithdrew

New Grad / Junior · Full-stack

A junior fullstack loop. Pragmatic questions — more real-world than pure puzzles.

5 rounds · 11 questions · 2024→
FrontendMidOutcome unknown

Mid · Frontend

A mid frontend loop. Fast-paced; expect follow-ups that push on depth.

5 rounds · 11 questions · 2024→
Full-stackMidRejected

Mid · Full-stack

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

5 rounds · 11 questions · 2025→
BackendSeniorOutcome unknown

Senior · Backend

A senior backend loop. Balanced across coding, design, and collaboration.

6 rounds · 13 questions · 2023→