Meta
Social media and metaverse company behind Facebook, Instagram, and WhatsApp.
4 Rounds
~21 Days
Very Hard
The Interview Loop
Recruiter Screen (30 min)
Standard fit check, behavioral questions, and resume overview.
Technical Loop (3-4 Rounds)
Deep dive into domain knowledge, coding, and system design.
Interview Question Bank
Cloud Engineer
•
System Design
•
hard
Design a globally distributed rate limiter for Meta's Graph API. It needs to handle millions of requests per second and enforce limits based on user ID and application ID.
#Rate Limiting
#Distributed Systems
#Redis
#Concurrency
Cloud Engineer
•
System Design
•
medium
Design a distributed caching system for Meta's newsfeed. How do you handle cache invalidation and the 'thundering herd' problem?
#Caching
#Distributed Systems
#Memcached
Cloud Engineer
•
System Design
•
hard
Design a photo storage system similar to what Instagram uses. It must handle billions of reads and millions of writes per day with extremely low latency.
#Blob Storage
#CDN
#Caching
#Database Scaling
Data Engineer
•
System Design
•
hard
Design a system to detect ad-click fraud in real-time. The system processes billions of events per day and needs to flag suspicious IPs or user accounts within seconds.
#Real-time Processing
#Fraud Detection
#Distributed Systems
#Caching
Data Engineer
•
System Design
•
hard
Design a data pipeline to process and store telemetry data for Instagram Reels. The pipeline needs to support real-time dashboarding for creators and batch processing for machine learning recommendations.
#Lambda Architecture
#Kafka
#Stream Processing
#Data Warehousing
Product Manager
•
System Design
•
hard
Design a system to detect and mitigate spam accounts generated by AI bots on Facebook Threads.
#Trust & Safety
#Machine Learning
#System Architecture
Product Manager
•
System Design
•
hard
Design the high-level architecture for a real-time collaborative feature in Instagram Notes where multiple users can type simultaneously.
#Scalability
#Real-time Systems
#Concurrency
Software Engineer
•
System Design
•
hard
Design a distributed web crawler that Meta could use to scrape the internet to build an index for a Large Language Model (LLM) training dataset. Focus on politeness, deduplication, and scale.
#Distributed Systems
#Graph Traversal
#Deduplication
#DNS Resolution
Software Engineer
•
System Design
•
medium
Design a distributed Rate Limiter for the Meta Graph API. It needs to handle millions of requests per second globally, ensuring that individual third-party developers do not exceed their allocated quota.
#Rate Limiting
#Redis
#Distributed Consensus
Software Engineer
•
System Design
•
hard
Design a system to track and display 'Trending Topics' (Top K Heavy Hitters) across Facebook and Instagram in real-time. The system must process billions of events per day.
#Stream Processing
#Count-Min Sketch
#MapReduce
#Kafka
Software Engineer
•
System Design
•
hard
Design WhatsApp's end-to-end message delivery system. Focus on how messages are routed when a user is offline, and how media (images/videos) are handled efficiently.
#WebSockets
#Message Queues
#Blob Storage
#E2E Encryption
Software Engineer
•
System Design
•
hard
Design the Facebook News Feed system. Users should be able to see a continuously updated list of posts from their friends and pages they follow, ranked by relevance.
#Distributed Systems
#Database Schema
#Caching
#Fan-out
Difficulty Radar
Based on recent AI-sourced data.
Meet Your Interviewers
The "Standard" Interviewer
Senior EngineerFocuses on core competencies, system constraints, and clear communication.
SimulateUnwritten Rules
Think Out Loud
Always explain your thought process before writing code or drawing architecture.