Visual Dev Guides

Master every aspect of technical interviews with our comprehensive, visual learning guides designed by experienced engineers.

Our Flagship Course

Master System Design Interviews

Build systems that power the world's largest tech companies

🚀 Expert

🚀

Expert

91 real-world system designs from Meta, Google, Apple & NVIDIA. Master architectures that power top 100 tech companies.

system-design

faang

distributed-systems

⏱️ 20+ hours📚 91 Designs

Master 20 core system design concepts: load balancing, caching, databases, and more.

Master the essential patterns that appear in 90% of coding interviews.

Navigate behavioral questions with structured storytelling.

Design mobile-first systems with offline capabilities.

Build AI-powered systems with LLMs and vector databases.

System Designs

200+

Interview Problems

50+

FAANG Patterns