Practice designing scalable distributed systems with AI interviewer. Master HLD concepts like database design, caching, load balancing, and microservices.
Practice with real interview questions asked at FAANG companies
Design TinyURL/bit.ly
API rate limiting system
Photo sharing platform
Real-time messaging
Video streaming platform
Ride-sharing system
SQL vs NoSQL, sharding, replication, partitioning strategies
Horizontal scaling, load balancing, caching layers
CAP theorem, consistency models, consensus algorithms
REST, GraphQL, rate limiting, authentication
5-10 min
Clarify functional and non-functional requirements
15-20 min
Draw system architecture, identify components
15-20 min
Discuss specific components in detail
5-10 min
Handle scale, discuss bottlenecks and alternatives
We offer 20+ questions including URL Shortener, Rate Limiter, Instagram, WhatsApp, Netflix, Uber, Payment System, and more.
The AI evaluates requirements gathering, architecture quality, component design, scalability considerations, and trade-off discussions.
System design interviews are typically for senior engineers (3+ years). However, practicing early helps build strong foundations.
Practice with AI and get detailed feedback on your architectural decisions.