System Design Interview Practice That Actually Prepares You
Practice system design interviews with an AI interviewer that applies real pressure. Master concepts like scalability, load balancing, caching, and database sharding through realistic simulations.
See How It Works
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Why System Design Interview Practice Is Critical
System design interviews determine your level and compensation at top tech companies. Most candidates fail because they lack realistic practice.
Handle Time Pressure
Real interviews are timed and stressful. Practice under realistic conditions to build confidence and improve your performance when it counts.
Master Core Concepts
Learn scalability, load balancing, caching strategies, database sharding, CAP theorem, and other essential patterns through hands-on practice.
Get Actionable Feedback
Receive detailed feedback on your designs, communication style, and trade-off analysis. Improve with every practice session.
What You'll Practice
Cover all essential system design topics through realistic interview scenarios
Scalability & Load Balancing
Design systems that handle millions of users
Database Design
Master SQL vs NoSQL, sharding, and replication
Caching Strategies
Implement Redis, CDNs, and cache invalidation
Microservices Architecture
Design distributed systems and service communication
Message Queues
Learn Kafka, RabbitMQ, and async processing
API Design
Create REST and GraphQL APIs that scale
Practice Like a Real Interview
Start Your Session
Choose from common system design problems or get a random challenge
Design Under Pressure
AI interviewer asks follow-up questions and challenges your assumptions
Review & Improve
Get detailed feedback and track your progress over time
Ready to Ace Your Next Interview?
Join thousands of engineers preparing for their dream roles at top tech companies