System design case studies
Free system design module: classic interview case studies — requirements, data model, cache, and failure modes. First topics open — no sign-up.
Free system design module on classic interview case studies. First topics open with no account.
URL shorteners, news feeds, and ticket booking show up because they force you to pick a data model, a cache, and a failure mode. This guest module is the case-study track with the first topics unlocked.
Work a case study after a lab, not instead of one. The lab proves you can read broken Spring code. The case study proves you can talk through scale. Both are free to start from this hub.
What you will cover
- Classic interview case-study structure
- Requirements, estimates, and APIs
- Data model and cache choices
- Failure modes and backpressure
- First topics free in the browser
Related free labs and modules
Common questions
Are system design case studies free here?
The first topics of this case-study module are free without an account. Sign in for the rest of the system design interview set.
Should I do labs or case studies first?
If you write Spring Boot daily, start with a lab (HikariCP or Actuator). If the next interview is a whiteboard design round, start here, then come back to a lab so your examples are concrete.
Is this a video course?
No. It is a structured module in the browser, the same format as the paid system design track, with a guest preview.
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