My Interviews Practice Learn Pricing About

Theme

Recent

Load Balancing & Scaling System Design Questions

10 design prompts lean on load balancing & scaling. Each one runs on a whiteboard canvas with AI feedback graded against a hidden rubric.

New to load balancing & scaling? There's a free 5-lesson interactive course (~50 min) with animated architectures and runnable simulations. Learn the concept first →

Design problems

URL Shortener

Design a URL shortener like TinyURL or Bitly.

CachingDatabase Scaling

Rate Limiter

Design a distributed rate limiter for a company's public APIs.

CachingConsistency & Trade-offs

Pastebin

Design a Pastebin-style text snippet sharing service.

CachingDatabase Scaling

Notification System

Design a multi-channel notification system (push, email, SMS).

Queues & Async Processing

Video Streaming

Design the video playback and delivery system for a streaming service like Netflix or YouTube.

CachingDatabase Scaling

Distributed Cache

Design a distributed in-memory cache like Redis or Memcached.

CachingConsistency & Trade-offs

Message Queue

Design a distributed message queue like Kafka or SQS.

Consistency & Trade-offsQueues & Async Processing

Ride Matching

Design the ride-hailing dispatch and matching system for a service like Uber or Lyft.

Consistency & Trade-offsQueues & Async Processing

Maps & ETA

Design a maps routing and ETA service like Google Maps.

CachingDatabase Scaling

Search Autocomplete

Design a search autocomplete (typeahead) service.

CachingDatabase Scaling

Want the pressure version? Any of these can run as a live 45-minute design interview with follow-up questions and a verdict. Set up a design interview