Master System Design Interviews Through Active Practice
Passively learning system design does not work. Now you can practice system design problems like the way you practice data structure and algorithms on Leetcode.
Three Ways to Ace Your Interview
From system design to algorithms, we've got you covered with interactive practice and real-time feedback
System Design
Design scalable systems like the pros
Interactive Whiteboard
AI-Powered Evaluation
High Score Solutions
Scale Estimation Tools
Community Feedback
DS & Algorithms
Master coding with visual learning
Step-by-Step Visualizations
8 Programming Languages
Real-time Test Cases
Complexity Analysis
Hints & Solutions
Object-Oriented Design
Design elegant class structures
UML Class Diagrams
Design Pattern Practice
SOLID Principles
AI Design Review
Real-world Scenarios
Ready to ace your next interview?
Get Started FreeA Better Way to Prepare for System Design Interviews.
Save months of study, better retention and deeper understanding! See Below.
Recommended Codemia | Design Gurus | System Design InterviewSDI | |
|---|---|---|---|
System Design Courses | |||
120+ Practice Problems UNIQUE | |||
120+ DSA Problems with Visualizations UNIQUE | |||
80+ High Score Solutions | |||
20+ Object-oriented Design Problems | |||
Mock Interviews with Peers NEW | |||
AI-Powered Real-time Feedback NEW | |||
Interactive Learning UNIQUE | |||
Iterative Feedback and Evaluation UNIQUE | |||
Structural Breakdown of SD Problems | |||
Community Feedback UNIQUE | |||
View Other Submissions UNIQUE | |||
Total Features | 12/12100% Coverage | 4/1233% Coverage | 3/1225% Coverage |
Trusted by engineers at top tech companies
Loved by Engineers Worldwide
Join thousands of engineers who transformed their interview skills
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“Codemia makes studying system design so engaging! I've learned more in weeks than months of traditional study.”
Maho P.
Senior SWE at Microsoft
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“The DSA visualizations are incredible! Finally understand algorithms step by step. Passed my coding interviews!”
Sarah L.
Software Engineer at Meta
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“Game-changer! The AI-guided practice sessions boosted my confidence. Aced my system design interviews!”
David Z.
Senior SWE at LinkedIn
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“Mock interview feature is amazing! Practiced with a Google engineer, got real feedback. Dream offer in 2 weeks!”
Alex K.
SWE II at Amazon
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“The OOD problems helped me understand design patterns deeply. Perfect prep for principal-level interviews.”
Jennifer W.
Software Engineer at Stripe
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“Best investment for interview prep. The interactive whiteboard feels just like real interviews. Highly recommend!”
Michael T.
Senior SWE at Netflix
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“Codemia makes studying system design so engaging! I've learned more in weeks than months of traditional study.”
Maho P.
Senior SWE at Microsoft
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“The DSA visualizations are incredible! Finally understand algorithms step by step. Passed my coding interviews!”
Sarah L.
Software Engineer at Meta
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“Game-changer! The AI-guided practice sessions boosted my confidence. Aced my system design interviews!”
David Z.
Senior SWE at LinkedIn
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“Mock interview feature is amazing! Practiced with a Google engineer, got real feedback. Dream offer in 2 weeks!”
Alex K.
SWE II at Amazon
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★
★
★
★
“The OOD problems helped me understand design patterns deeply. Perfect prep for principal-level interviews.”
Jennifer W.
Software Engineer at Stripe
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★
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★
“Best investment for interview prep. The interactive whiteboard feels just like real interviews. Highly recommend!”
Michael T.
Senior SWE at Netflix
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“Was struggling with system design until Codemia. Detailed solutions and instant AI feedback are invaluable!”
Jayson Z.
Software Engineer at Google
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“The step-by-step visualizations made complex algorithms click. Went from struggling to confident in weeks!”
Emma R.
Frontend Engineer at Airbnb
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“Perfect for aspiring engineers! AI feedback helped identify my weak points. Turned weaknesses into strengths!”
Prasanna K.
New Grad at CS Graduate
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“Used ChatGPT before but this is way better. Integrated platform keeps me in flow while studying. Love it!”
Francisco M.
SDE at Amazon
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“The peer matching for mock interviews is genius! Practiced with engineers worldwide. Got 3 offers in a month!”
Ryan H.
Backend Engineer at Uber
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“Needed to level up my system design skills. Codemia's AI guidance has been a lifesaver. Highly recommend!”
Neelan J.
Senior Dev at Microsoft
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“Was struggling with system design until Codemia. Detailed solutions and instant AI feedback are invaluable!”
Jayson Z.
Software Engineer at Google
★
★
★
★
★
“The step-by-step visualizations made complex algorithms click. Went from struggling to confident in weeks!”
Emma R.
Frontend Engineer at Airbnb
★
★
★
★
★
“Perfect for aspiring engineers! AI feedback helped identify my weak points. Turned weaknesses into strengths!”
Prasanna K.
New Grad at CS Graduate
★
★
★
★
★
“Used ChatGPT before but this is way better. Integrated platform keeps me in flow while studying. Love it!”
Francisco M.
SDE at Amazon
★
★
★
★
★
“The peer matching for mock interviews is genius! Practiced with engineers worldwide. Got 3 offers in a month!”
Ryan H.
Backend Engineer at Uber
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★
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“Needed to level up my system design skills. Codemia's AI guidance has been a lifesaver. Highly recommend!”
Neelan J.
Senior Dev at Microsoft
Start now!
Start studying today! Get your skills to the next level and differentiate yourself from the rest of the competition.
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What makes Codemia different from other platforms?
Codemia offers a unique combination of interactive practice, AI-powered feedback, and peer mock interviews. Unlike passive learning platforms, we focus on active practice with real-time evaluation - like having a senior engineer review your work instantly.
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What topics does Codemia cover?
We cover four main areas: System Design (40+ problems), Data Structures & Algorithms (120+ problems with visualizations), Object-Oriented Design (20+ problems), and Mock Interviews with real engineers. All designed to prepare you for FAANG-level interviews.
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Is Codemia suitable for beginners?
Absolutely! Each topic has problems ranging from beginner to advanced. Our step-by-step visualizations for DSA and structured approach for system design make complex concepts accessible. Many users start with zero experience and land offers within months.
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How do Mock Interviews work?
Book a time slot and we'll match you with another engineer at your level. You'll take turns as interviewer and interviewee, practicing real interview scenarios with video, collaborative whiteboard, and code editor. Get immediate peer feedback after each session.
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Can I try before I subscribe?
Yes! You get free access to selected problems in each category. Explore our interactive whiteboard, try DSA visualizations, and experience AI feedback. Upgrade to Premium for unlimited access to all problems, solutions, and mock interviews.
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How do I get support if I have questions?
We're here to help! Reach us at [email protected] or through our Discord community where you can connect with other learners and get tips from engineers who've successfully used Codemia to land their dream jobs.