Master System Design with Expert Feedback
Practice real Staff+ engineering questions. Get instant, detailed AI evaluations on your answers. Track your progress, compete globally, and level up your system design skills.
🏆 Top 100 Ranking
Compete globally.
Join the elite. Answer questions, earn points, and climb the global leaderboard. Prove your expertise by ranking among the world's top 100 engineers.
AI Evaluation
Instant, expert feedback.
Get detailed evaluations from Claude AI. Learn from your strengths, understand your weaknesses, and receive actionable improvement tips after every answer.
Smart Questions
Real engineering challenges.
Tackle system design and engineering management questions. Our algorithm ensures you never see the same question twice. Every challenge expands your expertise.
Performance Insights
Track your journey.
Visualize your progress with detailed analytics. See your rank evolution, identify strengths and weaknesses, and track your path to the top 100.
Top 3 Engineers
See who's currently leading the pack. Will you be next?
Claim your spot in the Top 100
Start answering questions, climb the leaderboard, and prove you're among the world's best engineers.