Practicing system design questions is great—but truly mastering them comes from seeing how experienced engineers break them down, explain trade-offs, and handle ambiguity.
That’s why we’ve built more than just a question bank. Every system design question on our platform includes high-quality editorial solutions, and many also feature community-submitted answers, so you can learn from diverse perspectives and sharpen your own thinking.
🧠 What Our Editorial Solutions Offer
Each official solution walks you through the interview question step by step:
✅ Clear Breakdown of Requirements
We define both functional and non-functional requirements so you don’t miss any edge cases. Learn how to clarify vague prompts—just like in a real interview.
✅ Thoughtful System Architecture
From high-level block diagrams to component-level breakdowns, we teach you how to:
- Choose appropriate databases and storage models
- Design APIs and request/response flows
- Use caching, load balancing, sharding, and queues effectively
✅ Scalability and Trade-Off Discussions
Understand how to reason about:
- Data growth and traffic patterns
- Consistency vs. availability
- Cost-performance trade-offs
✅ Failure Scenarios and Bottleneck Mitigation
We help you identify weak spots in your design and suggest how to handle outages, retries, rate limits, and more—skills that stand out in senior-level interviews.
✍️ Community-Contributed Solutions
We also believe in learning from each other.
Engineers in our community contribute their own answers to interview prompts, providing alternative perspectives, creative ideas, and unique trade-offs. Many even include diagrams and thoughtful explanations.
- Upvote and comment on others’ designs
- Compare multiple solution approaches
- Get inspiration for your own system design portfolio
🫱 Want to share your solution? Every question page has a “Contribute Your Answer” button so you can give back while practicing.
🔄 Learn, Reflect, Iterate
By comparing your approach with both editorial and peer-contributed answers, you’ll:
- Improve your technical depth
- Learn how to communicate trade-offs better
- Spot gaps in your design thinking
This kind of reflection and comparison is exactly what interviewers look for when hiring thoughtful system designers.
Because great system design isn’t just about having the right answer—it’s about thinking like a systems engineer.