theloop
CompaniesRoundsQuestionsSearchProgress
Frontend prep↗
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 GitHubFrontend interview prep ↗

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

← Tower Research Capital

Staff+ Full-stack at Tower Research Capital

Full-stackStaff+Outcome unknown◆ Commonly asked· 2024

A staff fullstack loop. Balanced across coding, design, and collaboration.

The loop · 5 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Reverse nodes in k-group.
    Staff+Hard◆ Commonly asked
    #linked-list
    PracticeLeetCode↗GeeksforGeeks↗
  • Longest increasing subsequence.
    Staff+Hard◆ Commonly asked
    #dp#binary-search
    PracticeLeetCode↗GeeksforGeeks↗
  • Climbing stairs.
    Staff+Easy◆ Commonly asked
    #dp
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 1 question

Low-Level Design

Object-oriented / low-level design of a focused module.

  • Design an elevator control system.
    Staff+Medium◆ Commonly asked
    #oop#state-machine
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 2 questions

System Design

High-level architecture of a large-scale system.

  • Design a rate-limited, multi-tenant public API gateway.
    Staff+Hard◆ Commonly asked
    #gateway#rate-limit
    PracticeGeeksforGeeks↗Search↗
  • Design a URL shortener like TinyURL.
    Staff+Medium◆ Commonly asked
    #hashing#cache#sharding
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 1 question

Hiring Manager

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

  • How do you evaluate and adopt a new technology?
    Staff+◆ Commonly asked
    #judgment
05

Round 05 · 2 questions

Behavioral / HR

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

  • When did you have to make a decision with incomplete data?
    Staff+◆ Commonly asked
    #judgment#star
  • Tell me about a time you had to learn something quickly.
    Staff+◆ Commonly asked
    #learning#star

Practice each round across every company

  • DSA / Coding
  • Low-Level Design
  • System Design
  • 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.