System Design
The practice of designing large-scale distributed systems, covering architecture, scalability, reliability, and trade-off analysis.
How to verify System Design skills
Get matched with a peer
Lemma's matching engine pairs you with a practitioner who complements your System Design level. Both of you benefit from the session.
Demonstrate your skills live
In a video session, you work through real System Design problems. Your peer observes your approach, reasoning, and output quality.
Build your evidence trail
Session evidence feeds into your System Design SCI score automatically. Each session adds to your verifiable track record.
Related skills
Frequently asked questions
How do I verify my System Design skills on Lemma?
Peer sessions involve whiteboarding architectures, discussing trade-offs, or reviewing existing system designs. Your partner evaluates your ability to reason about scale, failure modes, and component selection.
What does a System Design SCI score measure?
Your System Design SCI measures ability to decompose problems, select appropriate technologies, reason about scalability and reliability, handle failure scenarios, and communicate architectural decisions clearly.
What types of system design problems appear in peer sessions?
Common scenarios include designing a URL shortener, messaging system, notification service, or rate limiter. Advanced sessions may cover distributed consensus, event sourcing, or multi-region architectures.
How does System Design verification compare to interview prep sites?
Interview prep sites teach patterns. Lemma verification captures your ability to apply those patterns in real-time discussion with a peer, producing evidence of your reasoning process and trade-off analysis.
Start verifying your System Design skills
Join Lemma to prove what you know through peer sessions and build a trusted Skill Passport.
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