Como se preparar para entrevistas na Roblox

+14

What project are you most proud of?

+9

Describe your most impactful project

+7

Tell me about a project where the requirements were not clear or kept changing. How did you adapt and maintain productivity?

+4

Design Instagram

Design a photo-sharing social media platform where users can upload photos, follow other users, and view a chronological feed of posts from people they follow.

+3

Tell me about a time where you mentored a colleague

Tell me about a time when you made an error in judgment.

Tell me about a time when you took on something significant outside your area of responsibility.

Describe a time when you took on work outside of your comfort area.

Design a Resource Loader in a Game Engine

Design a resource loading system for a game engine that can load assets (textures, images, etc.) from both local application packages and remote CDNs, with support for processing operations like decryption and decompression.

Leetcode 339. Nested List Weight Sum

Given a nested list of integers and sublists, compute the total sum where each integer is multiplied by its depth in the nesting. The challenge is to traverse the arbitrarily nested structure and accumulate value*depth for each integer (track depth via recursion or an explicit stack/queue).

Design a Pub/Sub System

Design a publish-subscribe messaging system where publishers can send messages to topics and subscribers can listen to those topics. Messages are lost if no subscribers are currently listening.

Design a Matchmaking Service for Multiplayer Games

Design a matchmaking service that allows users to join waiting queues, get grouped by skill level into teams of 16, and be allocated to new game servers for multiplayer sessions.

Design a 3D to 2D rendering service

Design a scalable backend system that takes 3D models, scenes, or game environments as input and renders them into 2D PNG images. The system should handle asynchronous processing, support high-scale production use (10M+ users), and be capable of processing various types of 3D content including game models, environments, and user-submitted scene data.

Design A To-Do List App With Multi-User Collaboration

Design a to-do list application similar to iPhone's Reminder app that allows users to create task lists, share lists with other users for collaboration, and set date/time reminders that notify all collaborators.

Design a friend activity system for a gaming platform

Design a system that displays personalized messages showing which friends have played a specific game along with the total player count, similar to Roblox's game page feature handling hundreds of millions of users and tens of millions of games.

Design a skill-based matchmaking system

Design a matchmaking system that pairs players based on their skill levels, replacing a basic non-skill-based system with intelligent player matching capabilities.

Design a Delayed Payment Scheduler Service

Design a system that allows users to schedule delayed payments of virtual currency (Robux), where a specified amount is automatically transferred from one user to another after a designated time period.

Design a Like/Unlike Feature

Design a system that allows users to favorite/unfavorite items, check their favorite status, view favorite counts, and see their list of favorited items. The system should handle high read traffic (1M QPS for status checks and counts) and significant write traffic (100k QPS for fav/unfav operations) while maintaining data consistency.