Interview Preparation
A method for system design interviews, a bank of practice problems mapped to the lessons that help with each, and quick-reference sheets for trade-offs and numbers.
4 lessons45 minIntermediate
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What you'll learn
0 of 4 lessons complete
Who this is for and what you will be able to do
Who this is for
Anyone preparing for system design or low-level design interviews, or practising to explain designs clearly to colleagues.
After this course you will be able to
- Run a structured 45-minute design conversation
- Estimate scale quickly and use it to justify choices
- Practise with problems matched to the lessons that teach their ingredients
- Explain trade-offs crisply and avoid the common mistakes
How a lesson works
Interactive diagram
See how each component connects, then run a request through it.
Plain-words toggle
Switch between the technical explanation and a plain-language one.
Practice design
Change a design of your own in the builder and see how it holds up.
Quiz and exercise
Test your understanding before moving on.
Go deeper
These lessons are written from scratch. The books below are excellent next reads.
- System Design Interview, volumes 1 and 2by Alex Xuclassic interview-style walkthroughs
- Designing Data-Intensive Applicationsby Martin Kleppmanndepth behind the answers
- Grokking the System Design Interviewby Educativea structured practice course