System Design Simulator

Project Built By

Developed by Sairam Maruri. Let's connect!

AI-Powered Interview Practice

Ace Your FAANG System Design Interview

Practice with an AI-powered interviewer that evaluates your tradeoffs, not just your answers. Get real-time feedback on scalability, architecture decisions, and communication.

Real-Time Questioning

AI interviewer asks probing questions about scale, availability, and consistency - just like a real FAANG interview.

FAANG-Style Scoring

Get scored on 6 industry-standard dimensions: Requirements, Design, Scalability, Tradeoffs, Detail, and Communication.

Resume Analysis

Upload your resume and get AI-powered analysis of your skills and personalized interview topic recommendations.

Classic FAANG Problems

Practice the most common system design interview questions

Design TwitterDesign UberDesign NetflixDesign WhatsAppDesign InstagramDesign YouTube

Simple Pricing

Choose the plan that fits your preparation needs

Free

$0/mo
  • 1 Interview free / month
  • Basic Feedback
POPULAR

Plus

$19/mo
  • 15 Interviews / month
  • Detailed Feedback
  • Priority Support

Pro

$39/mo
  • 20 Interviews / month
  • Resume Analysis
  • Mock Interview Recordings
500+
Practice Sessions
95%
Pass Rate Improvement
6
Scoring Dimensions
24/7
AI Availability