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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

← Roblox

Staff+ Full-stack at Roblox

Full-stackStaff+Rejected◆ Commonly asked· 2024

5-round staff fullstack process. Fast-paced; expect follow-ups that push on depth.

The loop · 5 rounds

01

Round 01 · 3 questions

DSA / Coding

Data structures & algorithms on a whiteboard or shared editor.

  • House robber II.
    Staff+Medium◆ Commonly asked
    #dp
    PracticeLeetCode↗GeeksforGeeks↗
  • Validate a binary search tree.
    Staff+Medium◆ Commonly asked
    #tree#dfs
    PracticeLeetCode↗GeeksforGeeks↗
  • Find minimum in rotated sorted array.
    Staff+Medium◆ Commonly asked
    #binary-search
    PracticeLeetCode↗GeeksforGeeks↗
02

Round 02 · 1 question

Low-Level Design

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

  • Design a virtual DOM diffing model.
    Staff+Hard◆ Commonly asked
    #oop#algorithms
    PracticeGeeksforGeeks↗Search↗
03

Round 03 · 2 questions

System Design

High-level architecture of a large-scale system.

  • Design a client-side feature-flag and experiment SDK.
    Staff+Medium◆ Commonly asked
    #frontend#experiments
    PracticeGeeksforGeeks↗Search↗
  • Design a distributed cache.
    Staff+Hard◆ Commonly asked
    #cache#consistency
    PracticeGeeksforGeeks↗Search↗
04

Round 04 · 1 question

Hiring Manager

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

  • How do you scope and staff a multi-month project?
    Staff+◆ Commonly asked
    #planning#leadership
05

Round 05 · 2 questions

Behavioral / HR

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

  • A time you made a mistake in production — what happened next?
    Staff+◆ Commonly asked
    #ownership#star
  • Why this company, and why this role?
    Staff+◆ Commonly asked
    #motivation

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