The reality of system design interview prep
See how our approach compares to traditional mock interviews
How it works
From challenge to solution — improve your design thinking skills
Select your challenge
Choose from popular system design problems like designing Netflix, Uber, or Twitter. Practice with real challenges from top tech companies.
Ready-to-go problems
We have a library of the most common system design interview questions.
Custom scenarios
Create your own problem to practice exactly what you need.
Record your solution
Explain your approach just like you would in a real interview. Talk through your system design while our AI listens and analyzes.
Natural conversation
Present your solution as you would to a real interviewer.
Comprehensive analysis
Our AI captures every aspect of your design explanation.
Get detailed feedback
Receive feedback on your architecture, scalability approach, and trade-off discussions — just like you would from a senior engineer.
Targeted feedback
Tailored feedback for your specific design choices.
Actionable insights
Clear recommendations to improve your system design skills.
We evaluate what matters in real interviews
Our AI analyzes your interview performance using the same criteria as senior engineers at top tech companies
Requirements Gathering
How well you identify and prioritize functional and non-functional requirements of the system. Find what to focus on and what we can ignore.
APIs & High-Level Design
Your ability to design coherent APIS and a system architecture that solves your functional requirements. A basic review of your data storage choices and schema design.
Deep Dive
How effectively you identify and address system bottlenecks. Examination of your design decisions, trade-offs considered, and justification of your choices based on estimations.
Compare against hand-written solutions
In addition to AI evaluation, access expert-written solutions that show different ways to solve the same problem. Learn from alternative approaches and expand your system design toolkit.
Complete solutions
See solutions that start from requirements and finish with a deep dive
Trade-off explanations
Understand why certain design decisions were made over others
Industry best practices
Learn patterns and approaches used by engineers at the top companies
What our users say
Hear from engineers who have improved their system design interview skills with our platform.
This platform helped me ace my system design interview at Google. The AI feedback was incredibly insightful and pointed out areas I would have never considered.
The ability to record and review my practice interviews was a game-changer. I could see my improvement over time and identify patterns in my responses.
After using this platform for just two weeks, I felt much more confident in my system design skills. The structured approach and detailed feedback made all the difference.
Less than the cost of a single mock interview
And instantly available for you to use
FAQ
Learn how our AI-powered platform compares to traditional mock interviews