System Design Interview Foundations

7 days · 18 items

Covers core system design concepts, a practical interview framework, and two canonical designs so you can confidently drive typical product-company system design interviews end-to-end.

  1. DAY 01

    Interview framing and structured approach

  2. DAY 02

    Core scaling and request flow patterns

  3. DAY 03

    Data modeling, storage, and consistency

  4. DAY 04

    Distributed patterns: queues, async, and reliability

  5. DAY 05

    End-to-end design: URL shortener deep dive

  6. DAY 06

    End-to-end design: news feed / Instagram-lite

  7. DAY 07

    Communication, iteration, and mock interview

How this plan works

01

Learn

Each item opens a full generated lesson — read it right here, no signup needed.

02

Practice

Build items turn the concepts into something you actually make, step by step.

03

Validate

A Socratic agent quizzes you over multiple rounds — you pass only when you truly understand.