What's Included
WinJob's Flagship Course
Win.System.Design>_
One system design platform to master them all
600+Design Problems
400+Quiz Sets
2,000Flashcard Sets
Win
✨WinJob's Flagship Course
curl 'https://api.winjob.dev/v1/enroll' \
-X POST \
--data-raw '{
"course": "system",
"goal": "mastery",
"features": [
"interactive-labs",
"ai-grading"
]
}'
Explore System content
In the era of AI coding, your job survival, promotion, and next job switch depend on your system design skills.
Powered by AI
AI Tools That Supercharge Your Prep
Not just content — intelligent tools that adapt to your learning style and accelerate your growth.
Simulation
AI Interview Simulator
Practice with an adaptive AI interviewer
Review
AI Design Reviewer
Submit designs for instant AI feedback
Migrate
Architecture Migrator
Learn migration paths between architectures
Present
Design Presenter
Auto-generate slides from any design
Predict
Interview Predictor
AI predicts your interview questions
Intel
Interview Intel
Crowdsourced interview intelligence
6 Industry Sectors
Every major sector covered with real-world design problems from top tech companies.
💬
Social Media & Communication
150 problems
🛒
E-Commerce & Marketplace
120 problems
🚗
Transportation & Logistics
100 problems
📺
Streaming & Media
100 problems
💰
Financial Systems
100 problems
🔍
Search & Discovery
80 problems
Frequently Asked Questions
Everything you need to know about preparing for system design interviews.
How is Win System Design different from other prep platforms?
We pair a deep content library (634 questions, 468 quiz sets, 2,000 flashcard sets, 55 cheat codes and an architecture-pattern library) with AI-powered tools like interview simulators and design reviewers.
Is this suitable for beginners?
Absolutely. Our content is organized by difficulty from beginner to expert. Start with fundamentals and progressively tackle harder problems.
How do the AI tools work?
Our AI tools analyze your system designs, simulate interviewer questions, predict which topics you need to study based on your target company, and auto-generate presentation materials.
Can I use this for FAANG interviews?
Yes! Our questions are curated from real interviews at Meta, Google, Amazon, Apple, Netflix, Microsoft, and 50+ other top tech companies.
Do you offer team or enterprise plans?
Yes, we offer team plans for engineering teams. Contact us for enterprise pricing and custom learning paths.
Ready to Master System Design?
Work through the full library — design problems, quiz sets, flashcards and architecture patterns — with AI tools that review your designs as you practice.