•COMPANY QUESTIONS
System Design Interview Questions by Company
196 unique system design problems reported by candidates at 31 top tech companies, each with a full solution. Updated September 2025 – September 2026.
Meta
29 problems · 57 reports
Online Judge and Coding Contest Platform (LeetCode) · Social Post Search (Keyword and Boolean Queries) · Ad Click and Impression Aggregator
Amazon
29 problems · 32 reports
Amazon Locker System (LLD + Backend) · Instagram · Multi-Branch Library Management System
Microsoft
28 problems · 33 reports
URL Shortener (TinyURL / bit.ly) · BookMyShow · Distributed Key-Value Store (DynamoDB / Cassandra)
OpenAI
23 problems · 74 reports
Payment Processing System (Stripe-style) · Cloud Development Environment (Codespaces / Replit / DevBox) · Text-to-Video Generation Service (Sora)
20 problems · 22 reports
Distributed Rate Limiter · Web Crawler · Recommendation System (Candidate Generation + Ranking)
TikTok
17 problems · 18 reports
Top-K Trending Items (Heavy Hitters) · Governed Data Service for Downstream Consumers · Tracing and Debugging AI Agent Tool Calls
Anthropic
16 problems · 27 reports
Messenger App · Distributing Large Model Weights to Thousands of GPU Hosts · LLM Inference API with Dynamic Batching
Salesforce
16 problems · 18 reports
Coffee Ordering System with Real-Time Notifications · Analytics Dashboard for an AI Chat Product · Top-K Trending Items (Heavy Hitters)
Uber
13 problems · 24 reports
Shopping Cart and Pricing Service (Uber Eats Cart) · Uber Design (Ride-Hailing) · Proximity Search (Yelp / Nearby Restaurants)
13 problems · 20 reports
Top-K Trending Items (Heavy Hitters) · Malicious IP and URL Detection Service · Distributed Key-Value Store (DynamoDB / Cassandra)
Goldman Sachs
13 problems · 15 reports
Push Notification Service · Stock Trading Platform (Zerodha / Robinhood) · Pastebin (Share Text by Link)
Databricks
12 problems · 24 reports
Messenger App · Online Bookstore with Price Aggregation · Music Playlist Service (Spotify Playlists)
Apple
12 problems · 14 reports
Google Drive · Ad Click and Impression Aggregator · Distributed Rate Limiter
JPMorgan
11 problems · 13 reports
E-commerce Shopping Website (and Fixing Cart Latency) · URL Shortener (TinyURL / bit.ly) · Large File Upload and Processing Pipeline
Atlassian
11 problems · 11 reports
Metrics Monitoring and Alerting System · Distributed Rate Limiter · Simple Greeting-Card Web App (MVP Architecture)
Netflix
10 problems · 20 reports
Ad Frequency Capping Service (Netflix Ads) · Ads Platform Data Model (OLTP and Reporting) · Publisher Configuration Rules and Safe Global Rollout
Snowflake
10 problems · 11 reports
Distributed Job Scheduler (Cron at Scale) · Interactive SQL Query Notebook (Snowflake) · Calendar Service (Google Calendar)
Flipkart
10 problems · 11 reports
Food Ordering System (Machine Coding / LLD) · Buy Now Pay Later (BNPL) System (Machine Coding) · Online Judge and Coding Contest Platform (LeetCode)
Rippling
9 problems · 29 reports
News Aggregator (Google News) · MakeMyTrip – Hotel Booking System · User Behavior Tracking (Clickstream Analytics)
Oracle
9 problems · 13 reports
Top-K Trending Items (Heavy Hitters) · Distributed Rate Limiter · Uber Design (Ride-Hailing)
Airbnb
7 problems · 11 reports
Messenger App · Distributed Job Scheduler (Cron at Scale) · MakeMyTrip – Hotel Booking System
Capital One
7 problems · 8 reports
Virtual Credit Card Service (Capital One) · Credit Card Authorization, Limits and Reporting · Credit Card Customer Portal
Bloomberg
7 problems · 8 reports
Real-Time Market Data Distribution and VWAP (Bloomberg) · Low-Latency Holiday Lookup Service · Distributed Job Scheduler (Cron at Scale)
NVIDIA
7 problems · 7 reports
Autonomous Vehicle Camera Perception Pipeline · GPU Cluster Control Plane (Host Health, Repair and Job Dispatch) · IoT / Sensor Telemetry Pipeline
Walmart
7 problems · 7 reports
IoT / Sensor Telemetry Pipeline · Metrics Monitoring and Alerting System · E-commerce Product Catalog and Price Updates
6 problems · 10 reports
Typeahead / Search Autocomplete · Push Notification Service · Distributed Rate Limiter
Roblox
6 problems · 8 reports
Distributed Rate Limiter · Scalable Likes System and Like Counter · To-Do List Service (REST API and Real-Time Shared Lists)
Visa
5 problems · 5 reports
E-commerce Tables and Indexes for Recent-Spend Queries · Payment Processing System (Stripe-style) · Push Notification Service
Adobe
4 problems · 4 reports
PDF Viewer Search Box that Cycles Through Matches (React) · Runtime Localization System (i18n) · Color Suggestion System (Adobe)
Anduril
1 problem · 1 report
URL Shortener (TinyURL / bit.ly)
DE Shaw
1 problem · 1 report
Aggregating Records from Multiple Data Sources (Primary Source Wins)
Frequently Asked Questions
Which companies ask the most system design questions?
Meta, Amazon, Microsoft ask the most distinct system design problems: 29 (Meta), 29 (Amazon), 28 (Microsoft) unique problems in the past year, merged from repeated candidate reports.
Are these real system design interview questions?
Yes. These are real questions reported by candidates from system design interviews at top tech companies between September 2025 and September 2026.
How should I prepare for company-specific system design interviews?
Study the company's product, scale, and tech stack. Practice questions specific to that company's domain. Amazon focuses on scalability and trade-offs, Google on distributed systems, Meta on social features, and Apple on device-cloud integration.
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