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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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Online AssessmentDSA / CodingMachine CodingLow-Level Design

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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.

MIT · © 2026

← Palantir

Staff+ Full-stack at Palantir

Full-stackStaff+Withdrew◆ Commonly asked· 2025

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

The loop · 5 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • Course Schedule — detect a cycle / topological sort.
    Staff+Medium◆ Commonly asked
    #graph#topo-sort
    PracticeLeetCode↗GeeksforGeeks↗
  • Rotate array.
    Staff+Medium◆ Commonly asked
    #array
    PracticeLeetCode↗GeeksforGeeks↗
  • Best time to buy and sell stock.
    Staff+Easy◆ Commonly asked
    #array#greedy
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 1 question

Low-Level Design

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

  • Design an in-memory file system.
    Staff+Hard◆ Commonly asked
    #oop#trees
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 2 questions

System Design

High-level architecture of a large-scale system.

  • Design a payment processing + idempotency system.
    Staff+Hard◆ Commonly asked
    #idempotency#consistency
    PracticeGeeksforGeeks↗Search↗
  • Design a micro-frontend architecture.
    Staff+Hard◆ Commonly asked
    #frontend#architecture
    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.

  • Why this company, and why this role?
    Staff+◆ Commonly asked
    #motivation
  • Tell me about a time you had to say no to a stakeholder.
    Staff+◆ Commonly asked
    #influence#star

◆ This experience is composed from commonly reported questions for this role and level. Real, individually-shared interviews will be layered in over time.